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Betamethasone impurity 14 Betamethasone impurity 14. Uses: For analytical and research use. Group: Impurity standards. CAS No. 140218-14-0. Molecular formula: C22H29FO4. Mole weight: 376.47. Catalog: APB140218140. Alfa Chemistry Analytical Products 4
Betamethasone impurity 21 Betamethasone impurity 21. Uses: For analytical and research use. Group: Impurity standards. CAS No. 123013-40-1. Molecular formula: C23H31FO5. Mole weight: 406.49. Catalog: APB123013401. Alfa Chemistry Analytical Products 4
Betamethasone impurity 8 Betamethasone impurity 8. Uses: For analytical and research use. Group: Impurity standards. CAS No. 103466-44-0. Molecular formula: C24H28O5. Mole weight: 396.48. Catalog: APB103466440. Alfa Chemistry Analytical Products 4
(11 β,16 β,17α,20R)-9-Fluoro-11,20-dihydroxy-16-methyl-3-oxopregna-1,4-dien-21-oic Acid. (Betamethasone Impurity) (11 β,16 β,17α,20R)-9-Fluoro-11,20-dihydroxy-16-methyl-3-oxopregna-1,4-dien-21-oic Acid, is an impurity of Betamethasone (B327000), a glucocorticoid used as an anti-inflammatory agent. Group: Biochemicals. Grades: Highly Purified. CAS No. 1150311-95-7. Pack Sizes: 10mg, 25mg. Molecular Formula: C22H29FO5, Molecular Weight: 392.46. US Biological Life Sciences. USBiological 9
Worldwide
Betamethasone EP Impurity C Betamethasone EP Impurity C is used in biological studies to perform preclinical characterization of VBP15, a novel anti-inflammatory delta 9,11 steroid. It is also used in analytical studies to determine the stability from reversed-phase high performance liquid chromatography (RP-HPLC) to separate low levels of dexamethasone and other related compounds from betametasone. Synonyms: (16beta)-17,21-Dihydroxy-16-Methylpregna-1,4,9(11)-Triene-3,20-Dione; 17,21-dihydroxy-16β-methylpregna-1,4,9(11)-triene-3,20-dione; NSC699834; 16β-Methyl-17,21-dihydroxypregna-1,4,9(11)-triene-3,20-dione. Grades: > 95%. CAS No. 13504-15-9. Molecular formula: C22H28O4. Mole weight: 356.47. BOC Sciences 7
Betamethasone EP Impurity D Betamethasone EP Impurity D is an intrinsic impurity present in the pharmaceutical drug Betamethasone. Betamethasone serves a multitude of purposes, particularly catering to the therapy of inflammatory cutaneous ailments encompassing eczema and psoriasis. Synonyms: Betamethasone 21-(ethyl carbonate); Betamethasone, 21-(ethyl carbonate); UNII-26764AL880; 26764AL880; Betamethasone EP Impurity D; ethyl [2-[(8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] carbonate; DTXSID10200599; Betamethasone 21-O-Ethyl Carbonate; BETAMETHASONE IMPURITY D [EP IMPURITY]; Q27254059; 9-FLUORO-11.BETA.,17-DIHYDROXY-16.BETA.-METHYL-3,20-DIOXOPREGNA-1,4-DIEN-21-YL ETHOXYCARBOXYLATE; PREGNA-1,4-DIENE-3,20-DIONE, 21-((ETHOXYCARBONYL)OXY)-9-FLUORO-11,17-DIHYDROXY-16-METHYL-, (11.BETA.,16.BETA.)-. Grades: > 95%. CAS No. 52619-05-3. Molecular formula: C25H33FO7. Mole weight: 464.54. BOC Sciences 9
Betamethasone EP Impurity H Betamethasone EP Impurity H. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8S,9R,10R,11S,13R,14S,16S,17R)-14-fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one. CAS No. 185613-71-2. Molecular formula: C22H29FO5. Mole weight: 392.46. Catalog: APB185613712. Alfa Chemistry Analytical Products 4
Betamethasone EP Impurity I Betamethasone EP Impurity I. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8S,9R,10R,11S,13S,14R,16S,17R)-8-fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one. CAS No. 185613-69-8. Molecular formula: C22H29FO5. Mole weight: 392.46. Catalog: APB185613698. Alfa Chemistry Analytical Products 4
Betamethasone EP Impurity J Betamethasone EP Impurity J is an intermediate in the synthesis of 17,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione. Synonyms: 16β-Methyl-17α,21-Dihydroxypregna-1,4-diene-3,20-dione; (8S,9S,10S,13S,14S,16S,17R)-17-Hydroxy-17-(2-hydroxyacetyl)-9,10,13,16-tetramethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one. Grades: > 95%. CAS No. 18383-24-9. Molecular formula: C22H30O4. Mole weight: 358.48. BOC Sciences 7
Betamethasone Valerate EP Impurity I Betamethasone Valerate EP Impurity I is an impurity of prednisolone. Synonyms: 9α-Fluoroprednisolone 17-Valerate; 9-Fluoro-11β,17,21-trihydroxy-pregna-1,4-diene-3,20-dione 17-valerate. Grades: > 95%. CAS No. 2802-10-0. Molecular formula: C26H35FO6. Mole weight: 462.56. BOC Sciences 7
Betamethasone Valerate Impurity C Betamethasone Valerate Impurity C is an impurity of Dexamethasone. Synonyms: 9-Fluoro-11b,17,21-trihydroxy-16a-methylpregna-1,4-diene-3,20-dione 17-valerate; Dexamethasone Valerate; DV 17; Dexamethasone 17-valerate. Grades: > 95%. CAS No. 33755-46-3. Molecular formula: C27H37FO6. Mole weight: 476.59. BOC Sciences 7
Betamethasone Valerate Impurity F Betamethasone Valerate Impurity F is an impurity of Betamethasone. Synonyms: Betamethasone 9(11)-ene; 17,21-Dihydroxy-16β-methyl-pregna-1,4,9(11)-triene-3,20-dione 17-Valerate. Grades: > 95%. CAS No. 16125-28-3. Molecular formula: C27H36O5. Mole weight: 440.58. BOC Sciences 7
Betamethasone Valerate Impurity H Betamethasone Valerate Impurity H is a derivative of Beclomethasone. Synonyms: 9-Chloro-11β,21-dihydroxy-16β-methyl-17-[(1-oxopentyl)oxy]pregna-1,4-diene-3,20-dione; Einecs 258-050-6; BecloMethasone 17-Valerate; (11β,16β)-9-Chloro-11,21-dihydroxy-16-methyl-17-[(1-oxopentyl)oxy]-pregna-1,4-diene-3,20-dione. Grades: > 95%. CAS No. 52619-18-8. Molecular formula: C27H37ClO6. Mole weight: 493.05. BOC Sciences 7
11,12-Dehydroxy-Betamethasone 11,12-Dehydroxy-Betamethasone is an impurity of the steroid Betamethasone (B327000) which is a glucocorticoid used as an anti-inflammatory agent. Group: Biochemicals. Grades: Highly Purified. CAS No. 127034-59-7. Pack Sizes: 10mg, 25mg. Molecular Formula: C22H27FO4, Molecular Weight: 374.45. US Biological Life Sciences. USBiological 9
Worldwide
(11 β,16 β)-9-Fluoro-11,17,21-trihydroxy-16-methylpregn-4-ene-3,20-dione (11 β,16 β)-9-Fluoro-11,17,21-trihydroxy-16-methylpregn-4-ene-3,20-dione is an impurity of Betamethasone (B327000), a glucocorticoid used as an anti-inflammatory agent. Group: Biochemicals. Grades: Highly Purified. CAS No. 560-34-9. Pack Sizes: 25mg, 100mg. Molecular Formula: C22H31FO5, Molecular Weight: 394.48. US Biological Life Sciences. USBiological 9
Worldwide
(16α ) -17-Hydroxy-16-methyl-21-[ (methylsulfonyl) oxy]pregna-1, 4, 9 (11) -triene-3, 20-dione (16α ) -17-Hydroxy-16-methyl-21-[ (methylsulfonyl) oxy]pregna-1, 4, 9 (11) -triene-3, 20-dione, can be an impurity of Betamethasone (B327000), a glucocorticoid used as an anti-inflammatory agent. Group: Biochemicals. Grades: Highly Purified. CAS No. 23776-75-2. Pack Sizes: 1mg. Molecular Formula: C23H30O6S, Molecular Weight: 434.55. US Biological Life Sciences. USBiological 9
Worldwide
16α-Homo Betamethasone Sodium Phosphate 16α-Homo Betamethasone Sodium Phosphate is an impurity of Desoxymetasone which is an anti-inflammatory agent. Molecular formula: C22H28FNa2O8P. Mole weight: 516.40. BOC Sciences 8
(16 β)-17,21-Dihydroxy-16 β-methyl-pregna-1,4,9(11)-triene-3,20-dione (16 β)-17,21-Dihydroxy-16 β-methyl-pregna-1,4,9(11)-triene-3,20-dione (Betamethasone EP Impurity C) is used in biological studies to perform preclinical characterization of VBP15, a novel anti-inflammatory delta 9,11 steroid. This compound is also used in analytical studies to determine the stability from reversed-phase high performance liquid chromatography (RP-HPLC) to separate low levels of dexamethasone and other related compounds from betametasone, which is an active pharmaceutical ingredient. Group: Biochemicals. Grades: Highly Purified. CAS No. 13504-15-9. Pack Sizes: 2.5mg, 25mg. Molecular Formula: C22H28O4. US Biological Life Sciences. USBiological 9
Worldwide
(1 β,?11 β,?16 β ) ? -1, ? 11-? Epoxy-? 9-? fluoro-? 17-? hydroxy-? 16-? methyl-? 21-? (phosphonooxy) ? pregn-? 4-? ene-? 2, ? 20-? dione Sodium Salt (1 β,?11 β,?16 β ) ? -1, ? 11-? Epoxy-? 9-? fluoro-? 17-? hydroxy-? 16-? methyl-? 21-? (phosphonooxy) ? pregn-? 4-? ene-? 2, ? 20-? dione Sodium Salt is an impurity of Betamethasone Phosphate. It was used to demonstrate the loss of anti-inflammatory activity of betamethasone, when modified by UVB light. Group: Biochemicals. Grades: Highly Purified. CAS No. 1215720-30-1. Pack Sizes: 1mg, 5mg. Molecular Formula: C22H28FNa2O8P, Molecular Weight: 516.4. US Biological Life Sciences. USBiological 9
Worldwide
21-Deoxy Betamethasone 21-Deoxy Betamethasone is an impurity of Betamethasone. Synonyms: Doxybetasol; 21-Deoxybetamethasone; 9-Fluoro-11β,17-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione; Doxibetasol; Doxybetasol; 9-Fluoro-11β,17-dihydroxy-16β-methyl-pregna-1,4-diene-3,20-dione. Grades: > 95%. CAS No. 1879-77-2. Molecular formula: C22H29FO4. Mole weight: 376.47. BOC Sciences 7
21-Deschloro Clobetasol 17-Propionate 21-Deschloro Clobetasol 17-Propionate possesses vasoconstrictor activity. Also, it is derived from Betamethasone 17-Propionate 21-Mesylate (Clobetasol Propionate EP Impurity), which is the 21-mesylate analogue of Betamethasone 17-Acetate (B327015) with anti-inflammatory activity. Group: Biochemicals. Grades: Highly Purified. CAS No. 4351-48-8. Pack Sizes: 1mg, 5mg. Molecular Formula: C25H33FO5, Molecular Weight: 432.52. US Biological Life Sciences. USBiological 10
Worldwide
6-Bromo-betamethasone-17,21-dipropionate 6-Bromo-Betamethasone 17,21-Dipropionate is an impurity of Betamethasone. Synonyms: 6-Bromo-9-fluoro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl Dipropanoate. Grades: > 95%. CAS No. 1186048-34-9. Molecular formula: C28H36BrFO7. Mole weight: 583.50. BOC Sciences 7
6-Bromo-betamethasone 17,21-Dipropionate 6-Bromo-Betamethasone 17,21-Dipropionate (Betamethasone Dipropionate EP Impurity H) is an impurity of Betamethasone (B1083-75), a glucocorticoid used as an anti-inflammatory agent. Group: Biochemicals. Alternative Names: 6-Bromo-9-fluoro-11 β-hydroxy-16 β-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl Dipropanoate. Grades: Highly Purified. CAS No. 1186048-34-9. Pack Sizes: 10mg. Molecular Formula: C28H36BrFO7, CAS Number: 1186048-34-9. US Biological Life Sciences. USBiological 3
Worldwide
6-Bromo-betamethasone 17,21-Dipropionate 6-Bromo-betamethasone 17,21-Dipropionate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 6-Bromobetamethasone Dipropionate,(11?,16?)-6-Bromo-9-fluoro-11-hydroxy-16-methyl-17,21-bis(1-oxopropoxy)pregna-1,4-diene-3,20-dione. CAS No. 1186048-34-9. Pack Sizes: 10MG. IUPAC Name: [2-[(8S,9R,10S,11S,13S,14S,16S,17R)-6-bromo-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-17-propanoyloxy-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] propanoate. Molecular formula: C28H36BrFO7. Mole weight: 583.48. Catalog: APS1186048349. SMILES: CCC(=O)OCC(=O)[C@@]1(OC(=O)CC)[C@@H](C)C[C@H]2[C@@H]3CC(Br)C4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]12C. Format: Neat. Shipping: Room Temperature. Alfa Chemistry Analytical Products 4
Beclomethasone 17-Valerate Beclomethasone 17-Valerate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 9-Chloro-11?,21-dihydroxy-16?-methyl-3,20-dioxopregna1,4-dien-17-yl Pentanoate, (11?,16?)-9-Chloro-11,21-dihydroxy-16-methyl-17-[(1-oxopentyl)oxy]pregna-1,4-diene-3,20-dione, Betamethasone Valerate Imp. H (EP), Beclomethasone 17-Valerate,Pregna-1,4-diene-3,20-dione, 9-chloro-11,21-dihydroxy-16-methyl-17-[(1-oxopentyl)oxy]-, (11?,16?)- (9CI), Beclometasone 17-Valerate. CAS No. 52619-18-8. Pack Sizes: 10MG. IUPAC Name: [(8S,9R,10S,11S,13S,14S,16S,17R)-9-chloro-11-hydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl] pentanoate. Molecular formula: C27H37ClO6. Mole weight: 493.03. Catalog: APS52619188. SMILES: CCCCC(=O)O[C@@]1([C@@H](C)C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(Cl)[C@@H](O)C[C@]12C)C(=O)CO. Format: Neat. Shipping: Room Temperature. Alfa Chemistry Analytical Products 4
Beclomethasone Dipropionate Impurity V Beclomethasone Dipropionate Impurity V is a betamethasone impurity, an antiinflammatory agent. Synonyms: Betamethasone 9,11-Epoxide 21-Propionate; (9β,11β,16β)-9,11-Epoxy-17-hydroxy-16-methyl-21-(1-oxopropoxy)pregna-1,4-diene-3,20-dione. Grades: > 95%. CAS No. 205105-83-5. Molecular formula: C25H32O6. Mole weight: 428.53. BOC Sciences 7
Betamethasone 17-Butyrate Betamethasone 17-Butyrate. Uses: For analytical and research use. Group: Impurity standards. CAS No. 5534-14-5. Pack Sizes: 100MG. Molecular formula: C26H35FO6. Mole weight: 462.55. Catalog: APS5534145. Format: Neat. Shipping: Room Temperature. Alfa Chemistry Analytical Products 4
Betamethasone 17-Butyrate 21-O-Tosyl O-Tosyl Protected analogue of Betamethasone 17-Butyrate (B327090), an impurity of Clobetasone 17-Butyrate (C583550). Group: Biochemicals. Alternative Names: (9R, 10S, 11S, 13S, 16S, 17R) -9-Fluoro-11-hydroxy-10, 13, 16-trimethyl-3-oxo-17- (2- (tosyloxy) acetyl) -6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17-dodecahydro-3H-cyclopenta [a]phenanthren-17-yl Butyrate. Grades: Highly Purified. Pack Sizes: 50mg. US Biological Life Sciences. USBiological 3
Worldwide
Betamethasone 17-Propionate An impurity of Clobetasol propionate. Clobetasol propionate is a corticosteroid of the glucocorticoid class used to treat various skin disorders including eczema and psoriasis. It is also highly effective for contact dermatitis caused by exposure to poison ivy/oak. Synonyms: (11β,16β)-9-Fluoro-11,21-dihydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; Betamethasone 17α-Propionate; Clobetasol Propionate EP Impurity A; Betamethasone 17-Propionate. Grades: > 95%. CAS No. 5534-13-4. Molecular formula: C25H33FO6. Mole weight: 448.52. BOC Sciences 7
Betamethasone 17-Propionate Betamethasone 17-Propionate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Betamethasone 17-Propionate,9-Fluoro-11?,21-dihydroxy-16?-methyl-3,20-dioxopregna-1,4-dien-17-yl Propanoate, Betamethasone 17?-propionate, Betamethasone 17-propionate, (11?,16?)-9-Fluoro-11,21-dihydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione, 9-Fluoro-11?,17,21-trihydroxy-16?-methylpregna-1,4-diene-3,20-dione 17-propionate. CAS No. 5534-13-4. Molecular formula: C25H33FO6. Mole weight: 448.52. Catalog: APS5534134. Format: Neat. Alfa Chemistry Analytical Products 4
Betamethasone 17-Propionate 21-Mesylate Betamethasone 17-Propionate 21-Mesylate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Pregna-1,4-diene-3,20-dione, 9-fluoro-11-hydroxy-16-methyl-21-[(methylsulfonyl)oxy]-17-(1-oxopropoxy)-, (11?,16?)-,9-Fluoro-11?-hydroxy-16?-methyl-21-[(methylsulphonyl)oxy]-3,20-dioxopregna-1,4-dien-17-yl Propanoate, (11?,16?)-9-Fluoro-11-hydroxy-16-methyl-21-[(methylsulfonyl)oxy]-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione, 9-Fluoro-11?,17,21-trihydroxy-16?-methylpregna-1,4-diene-3,20-dione 21-methanesulfonate 17-propionate, Betamethasone 17-Propionate 21-Mesilate. CAS No. 15423-80-0. IUPAC Name: [(8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11-hydroxy-10,13,16-trimethyl-17-(2-methylsulfonyloxyacetyl)-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl] propanoate. Molecular formula: C26H35FO8S. Mole weight: 526.61. Catalog: APS15423800. SMILES: CCC(=O)O[C@@]1([C@@H](C)C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]12C)C(=O)COS(=O)(=O)C. Format: Neat. Alfa Chemistry Analytical Products 4
Betamethasone 21-Acetate 17-Propionate Betamethasone 21-Acetate 17-Propionate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 21-(Acetyloxy)-9-fluoro-11?-hydroxy-16?-methyl-3,20-dioxopregna-1,4-dien-17-yl Propanoate, Imp. D (EP), Betamethasone 21-acetate, 17-propionate, (11?,16?)-21-(Acetyloxy)-9-fluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione,Pregna-1,4-diene-3,20-dione, 9-fluoro-11?,17,21-trihydroxy-16?-methyl-, 21-acetate 17-propionate (7CI,8CI). CAS No. 5514-81-8. IUPAC Name: [(8S,9R,10S,11S,13S,14S,16S,17R)-17-(2-acetyloxyacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl] propanoate. Molecular formula: C27H35FO7. Mole weight: 490.561. Catalog: APS5514818. SMILES: CCC(=O)O[C@@]1([C@@H](C)C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]12C)C(=O)COC(=O)C. Format: Neat. Alfa Chemistry Analytical Products 4
Betamethasone 21-Phosphate Disodium Salt Betamethasone 21-Phosphate Disodium Salt is a derivative of Betamethasone, which is a steroid medication used for a number of diseases including rheumatic disorders, skin diseases and allergic conditions. Synonyms: (11β,16β)-9-Fluoro-11,17-dihydroxy-16-methyl-21-(phosphonooxy)pregna-1,4-diene-3,20-dione Sodium Salt; 9-Fluoro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-(Dihydrogen Phosphate) Sodium Salt; Betnesol; Durabetason; NSC 90616; Steronema; Vista-Methasone; Dexamethasone Sodium Phosphate EP Impurity B. Grades: 97%. CAS No. 151-73-5. Molecular formula: C22H28FNa2O8P. Mole weight: 516.40. BOC Sciences 8
Betamethasone 21-Propionate Betamethasone 21-Propionate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Betamethasone Dipropionate Imp. C (Pharmeuropa), Clobetasol Propionate Imp. K (EP), 9-Fluoro-11beta,17-dihydroxy-16beta-methyl-3,20-dioxopregna-1,4-dien-21-yl Propanoate,Betamethasone 21-Propionate. CAS No. 75883-07-7. IUPAC Name: [2-[(8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] propanoate. Molecular formula: C25H33FO6. Mole weight: 448.52. Catalog: APS75883077. SMILES: CCC(=O)OCC(=O)[C@@]1(O)[C@@H](C)C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]12C. Format: Neat. Alfa Chemistry Analytical Products 4
Betamethasone 21-Valerate Betamethasone 21-Valerate is an isomeric impurity of Betamethasone 17-Valerate. It was generated in the stress study of the active drug Betamethasone 17-Valerate. Synonyms: (11β,16β)-9-Fluoro-11,17-dihydroxy-16-methyl-21-[(1-oxopentyl)oxy]pregna-1,4-diene-3,20-dione; 9-Fluoro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Valerate; Betamethasone Valerate Related Compound A. Grades: > 95%. CAS No. 2240-28-0. Molecular formula: C27H37FO6. Mole weight: 476.59. BOC Sciences 7
Betamethasone 6Alpha-Bromo 17-Valerate Betamethasone 6Alpha-Bromo 17-Valerate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 6?-Bromobetamethasone Valerate,6?-Bromo-9-fluoro-11?,21-dihydroxy-16?-methyl-3,20-dioxopregna-1,4-dien-17-yl Pentanoate, Betamethasone Valerate Imp. G (EP). IUPAC Name: [(6S,8S,9R,10S,11S,13S,14S,16S,17R)-6-bromo-9-fluoro-11-hydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl] pentanoate. Molecular formula: C27H36BrFO6. Mole weight: 555.47. Catalog: APS00971. SMILES: CCCCC(=O)O[C@@]1([C@@H](C)C[C@H]2[C@@H]3C[C@H](Br)C4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]12C)C(=O)CO. Format: Neat. Alfa Chemistry Analytical Products 4
Betamethasone 9,11-Epoxide 17,21-Dipropionate Betamethasone 9,11-Epoxide 17,21-Dipropionate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-Hydroxyacetophenone Oxime,1-(4-Hydroxyphenyl)ethanone Oxime, Paracetamol Imp. G (EP). CAS No. 66917-44-0. IUPAC Name: 4-[(Z)-N-hydroxy-C-methylcarbonimidoyl]phenol. Molecular formula: C28H36O7. Mole weight: 484.58. Catalog: APS66917440. SMILES: CCC(=O)OCC(=O)[C@@]1(OC(=O)CC)[C@@H](C)C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]35O[C@H]5C[C@]12C. Format: Neat. Alfa Chemistry Analytical Products 4
Betamethasone 9,11-Epoxide 17,21-Dipropionate Betamethasone impurity, as antiinflammatory agent. Group: Biochemicals. Alternative Names: (9 β,11 β,16 β)-9,11-Epoxy-16-methyl-17,21-bis(1-oxopropoxy)pregna-1,4-diene-3,20-dione; Beclomethasone 9,11-Epoxide 17,21-Dipropionate; Betamethasone 9 β,11 β-epoxide 17,21-Dipropionate; Beclomethasone 9,11-Epoxide 17,21-Dipropionate. Grades: Highly Purified. CAS No. 66917-44-0. Pack Sizes: 5mg. US Biological Life Sciences. USBiological 2
Worldwide
Betamethasone 9,11-Epoxide 17,21-Dipropionate-d5 Labeled Betamethasone impurity, as antiinflammatory agent. Group: Biochemicals. Alternative Names: 9 β,11 β,16 β)-9,11-Epoxy-16-methyl-17,21-bis(1-oxopropoxy)pregna-1,4-diene-3,20-dione-d5; Beclomethasone 9,11-Epoxide 17,21-Dipropionate-d5; Betamethasone 9 β,11 β-epoxide 17,21-Dipropionate-d5; Beclomethasone 9,11-Epoxide 17,21-Dipropionate-d5. Grades: Highly Purified. Pack Sizes: 2.5mg. US Biological Life Sciences. USBiological 2
Worldwide
Betamethasone 9,11-Epoxide 17-Propionate Betamethasone impurity, as antiinflammatory agent. Group: Biochemicals. Alternative Names: (9 β,11 β,16 β)-9,11-Epoxy-21-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; Beclomethasone 9,11-Epoxide 17-Propionate. Grades: Highly Purified. CAS No. 79578-39-5. Pack Sizes: 2.5mg. US Biological Life Sciences. USBiological 2
Worldwide
Betamethasone 9,11-Epoxide 21-Propionate Betamethasone impurity, as antiinflammatory agent. Group: Biochemicals. Alternative Names: (9 β,11 β,16 β)-9,11-Epoxy-17-hydroxy-16-methyl-21-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; Beclomethasone 9,11-Epoxide 21-Propionate. Grades: Highly Purified. CAS No. 205105-83-5. Pack Sizes: 5mg. US Biological Life Sciences. USBiological 2
Worldwide
Betamethasone 9,11-Epoxide 21-Valerate Betamethasone 9,11-Epoxide 21-Valerate is an impurity of Mupirocin, which is a carboxylic acid bacteriostatic/bactericidal antibiotic. Grades: 98%. Molecular formula: C27H36O6. Mole weight: 456.57. BOC Sciences 6
Betamethasone acetate United States Pharmacopeia (USP) Reference Standard. Group: Pharmacopeia & metrological institutes standardspharma & vet compounds & metabolitespharma & vet compounds & metabolitesapi standardscovid-19 research and reference materialseuropean pharmacopoeia (ph. eur.)impurity standardspharmaceutical toxicologypharmacopoeial standards. Alternative Names: Dexamethasone Acetate Imp. D (EP), 9-Fluoro-11beta,17-dihydroxy-16beta-methyl-3,20-dioxopregna-1,4-dien-21-yl Acetate, 9-Fluoro-11beta,17,21-trihydroxy-16beta-methylpregna-1,4-diene-3,20-dione 21-acetate, Betamethasone 21-acetate, Pregna-1,4-diene-3,20-dione, 9-fluoro-11beta,17,21-trihydroxy-16beta-methyl-, 21-acetate (6CI,7CI,8CI), 21-Acetoxy-9alpha-fluoro-11beta,17alpha-dihydroxy-16beta-methylpregna-1,4-diene-3,20-dione, Betamethasone acetate,Betamethasone Acetate, (11beta,16beta)-21-(Acetyloxy)-9-fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione. Alfa Chemistry Analytical Products
Betamethasone sodium phosphate United States Pharmacopeia (USP) Reference Standard. Group: Pharmacopeia & metrological institutes standardsapi standardsbritish pharmacopoeiacovid-19 research and reference materialseuropean pharmacopoeia (ph. eur.)impurity standardspharmaceutical toxicologypharmacopoeial standards. Alternative Names: Betamethasone sodium phosphate,Dexamethasone Sodium Phosphate Imp. B (EP), Betamethasone 21-phosphate disodium salt, Vista-Methasone, Steronema, NSC 90616, 9-Fluoro-11beta,17,21-trihydroxy-16beta-methylpregna-1,4-diene-3,20-dione 21-(dihydrogen phosphate) disodium salt, Betnesol, (11beta,16beta)-9-Fluoro-11,17-dihydroxy-16-methyl-21-(phosphonooxy)pregna-1,4-diene-3,20-dione disodium salt, Betamethasone Sodium Phosphate, Bentelan, Betamethasone 21-disodium phosphate, (11beta,16beta)-9-Fluoro-11,17-dihydroxy-16-methyl-21-(phosphonooxy)pregna-1,4-diene-3,20-dione sodium salt (1:2), Durabetason, CCI 1517, Betamethasone disodium phosphate, Disodium betamethasone 21-phosphate, Celestan solubile. Alfa Chemistry Analytical Products 2
Betamethasone Tripropionate Betamethasone Tripropionate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (11beta,16beta)-9-Fluoro-16-methyl-11,17,21-tris(1-oxopropoxy)pregna-1,4-diene-3,20-dione, 9-Fluoro-16beta-methyl-3,20-dioxopregna-1,4-diene-11beta,17,21-triyl Tripropanoate, Betamethasone 11,17,21-tripropionate, Betamethasone Tripropionate, Betamethasone Dipropionate Imp. G (Pharmeuropa). CAS No. 1186048-33-8. IUPAC Name: [2-[(8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-10,13,16-trimethyl-3-oxo-11,17-di(propanoyloxy)-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] propanoate. Molecular formula: C31H41FO8. Mole weight: 560.65. Catalog: APS1186048338. SMILES: CCC(=O)OCC(=O)[C@@]1(OC(=O)CC)[C@@H](C)C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@H](C[C@]12C)OC(=O)CC. Format: Neat. Alfa Chemistry Analytical Products 4
Clobetasol Clobetasol. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Clobetasol, CCI1822, Clobetasol Propionate Imp. G (EP), Ph Eur Clobetasol Propionate Impurity G, CCI18747, 21-Chloro-9-fluoro-11beta,17-dihydroxy-16beta-methylpregna-1,4-diene-3,20-dione, CCI6990,Clobetasol, USP Clobetasol propionate Related Compound A, Betamethasone Imp. B (EP), CCI 4650. CAS No. 25122-41-2. Pack Sizes: 10MG. IUPAC Name: (8S,9R,10S,11S,13S,14S,16S,17R)-17-(2-chloroacetyl)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one. Molecular formula: C22H28ClFO4. Mole weight: 410.91. Catalog: APS25122412A. SMILES: C[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)CCl. Format: Neat. Shipping: Room Temperature. Alfa Chemistry Analytical Products 4
Clobetasol Impurity (9-Fluoro-11-beta-21-Dihydroxy-16-Methylpregna-1, 4, 16-triene-3, 20-Dione) An impurity of Clobetasol propionate. Clobetasol propionate is a corticosteroid of the glucocorticoid class used to treat various skin disorders including eczema and psoriasis. It is also highly effective for contact dermatitis caused by exposure to poison ivy/oak. Synonyms: MK8RHF5SQO; Pregna-1,4,16-triene-3,20-dione, 9-fluoro-11,21-dihydroxy-16-methyl-, (11beta)-; (8S,9R,10S,11S,13S,14S)-9-fluoro-11-hydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-7,8,11,12,14,15-hexahydro-6H-cyclopenta[a]phenanthren-3-one; (11beta)-9-Fluoro-11,21-dihydroxy-16-methyl-pregna-1,4,16-triene-3,20-dione; 16delta-Betamethasone; UNII-MK8RHF5SQO; 16.DELTA.-BETAMETHASONE; SCHEMBL20199966; DTXSID90208578; 9-Fluoro-11beta,21-dihydroxy-16-methylpregna-1,4,16-triene-3,20-dione; (11.BETA.)-9-FLUORO-11,21-DIHYDROXY-16-METHYLPREGNA-1,4,16-TRIENE-3,20-DIONE; PREGNA-1,4,16-TRIENE-3,20-DIONE, 9-FLUORO-11,21-DIHYDROXY-16-METHYL-, (11.BETA.); Pregna-1,4,16-triene-3,20-dione, 9-fluoro-11,21-dihydroxy-16-methyl-, (11?)-; (11?)-9-Fluoro-11,21-dihydroxy-16-methylpregna-1,4,16-triene-3,20-dione; 9-Fluoro-11?,21-dihydroxy-16-methylpregna-1,4,16-triene-3,20-dione; 9-Fluoro-11beta,21-dihydroxy-16-methylpregna-1,4,16-triene-3,20-dione. Grades: > 95%. CAS No. 59860-99-0. Molecular formula: C22H27FO4. Mole weight: 374.46. BOC Sciences 7
Dexamethasone Acetate United States Pharmacopeia (USP) Reference Standard. Group: Pharmacopeia & metrological institutes standardsapi standardscovid-19 research and reference materialseuropean pharmacopoeia (ph. eur.)impurity standardspharmaceutical toxicologypharmacopoeial standards. Alternative Names: Dexamethasone Imp. G (EP),Betamethasone Acetate Imp. B (EP). Alfa Chemistry Analytical Products
Dexamethasone Acid Ethyl Ester Dexamethasone Acid Ethyl Ester is a derivative of Dexamethasone, which is a glucocorticoid used as an anti-inflammatory agent. Synonyms: Dexamethasone ethyl ester; Ethyl (11β,16α,17α)-9-fluoro-11,17-dihydroxy-16-methyl-3-oxoandrosta-1,4-diene-17-carboxylate; Androsta-1,4-diene-17-carboxylic acid, 9-fluoro-11,17-dihydroxy-16-methyl-3-oxo-, ethyl ester, (11β,16α,17α)-; ethyl (8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthrene-17-carboxylate; Dexamethasone Impurity 10; Dexamethasone Related Compound E; Betamethasone Impurity 89. Grades: ≥95%. CAS No. 37926-77-5. Molecular formula: C23H31FO5. Mole weight: 406.49. BOC Sciences 8
Dexamethasone Sodium phosphate Impurity B Dexamethasone Sodium phosphate Impurity B is an impurity of Dexamethasone Sodium phosphate, a preeminent corticosteroid therapeutic drug for treating a myriad of complicated inflammatory ailments, hypersensitivity responses and sundry malignancies. Uses: Glucocorticoids. Synonyms: Betamethasone phosphate; Betamethasone 21-phosphate; 360-63-4; Betamethasone dihydrogen phosphate; YJO1F9W10R; CHEBI:68603; Betamethasone 21-(dihydrogen phosphate); [2-[(8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] dihydrogen phosphate; (11beta,16beta)-9-fluoro-11,17-dihydroxy-16-methyl-3,20-dioxopregna-1,4-dien-21-yl dihydrogen phosphate; Pregna-1,4-diene-3,20-dione,9-fluoro-11,17-dihydroxy-16-methyl-21-(phosphonooxy)-, (11b,16b)-. Grades: > 95%. CAS No. 360-63-4. Molecular formula: C22H30FO8P. Mole weight: 472.45. BOC Sciences 8
Doxybetasol Doxybetasol. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Betamethasone Valerate Imp. B (EP), Doxybetasol,(11?,16?)-9-Fluoro-11,17-dihydroxy-16-methyl-pregna-1,4-diene-3,20-dione, Doxibetasol, 21-Deoxybetamethasone, 9-Fluoro-11?,17-dihydroxy-16?-methylpregna-1,4-diene-3,20-dione, Pregna-1,4-diene-3,20-dione, 9-fluoro-11?,17-dihydroxy-16?-methyl- (7CI,8CI). CAS No. 1879-77-2. Pack Sizes: 10MG. IUPAC Name: (8S,9R,10S,11S,13S,14S,16S,17R)-17-acetyl-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one. Molecular formula: C22H29FO4. Mole weight: 376.46. Catalog: APS1879772. SMILES: C[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)C. Format: Neat. Shipping: Room Temperature. Alfa Chemistry Analytical Products 4
(E)-Betamethasone-?17,20 21-Aldehyde (E)-Betamethasone-?17,20 21-Aldehyde. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Pregna-1,4,17(20)-trien-21-al, 9-fluoro-11,20-dihydroxy-16-methyl-3-oxo-, (11?,16?,17E)-, (E)-9-Fluoro-11?,20-dihydroxy-16?-methyl-3-oxopregna-1,4,17(20)-trien-21-al, (11?,16?,17E)-9-Fluoro-11,20-dihydroxy-16-methyl-3-oxopregna-1,4,17(20)-trien-21-al, Betamethasone-(E)-enolaldehyde. CAS No. 52647-07-1. IUPAC Name: (2E)-2-[(8S,9R,10S,11S,13S,14S,16S)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-ylidene]-2-hydroxyacetaldehyde. Molecular formula: C22H27FO4. Mole weight: 374.45. Catalog: APS52647071. SMILES: C[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)/C/1=C(/O)\C=O. Format: Neat. Alfa Chemistry Analytical Products 4
(16 β)?- 9-? Fluoro-? 17, ? 21-? dihydroxy-? 16-? methyl-? pregna-? 1, ? 4, ? 11-? triene-? 3, ? 20-? dione (16 β)?- 9-? Fluoro-? 17, ? 21-? dihydroxy-? 16-? methyl-? pregna-? 1, ? 4, ? 11-? triene-? 3, ? 20-? dione is a steroid and also the impure form of Betamethasone (B327000) which is a glucocorticoid used as an anti-inflammatory agent. Group: Biochemicals. Grades: Highly Purified. CAS No. 127304-59-7. Pack Sizes: 5mg, 25mg. Molecular Formula: C22H27FO4, Molecular Weight: 374.45. US Biological Life Sciences. USBiological 9
Worldwide
Clobetasol propionate impurity I Betamethasone 17-Propionate 21-Mesylate is the 21-mesylate analogue of Betamethasone 17-Acetate. Synonyms: (11β,16β)-9-Fluoro-11-hydroxy-16-methyl-21-[(methylsulfonyl)oxy]-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; 9-Fluoro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Methanesulfonate 17-Propionate. Grades: > 95%. CAS No. 15423-80-0. Molecular formula: C26H35FO8S. Mole weight: 526.63. BOC Sciences 7

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