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Clobetasol Propionate EP Impurity A Clobetasol Propionate EP Impurity A. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11-hydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate. CAS No. 5534-13-4. Molecular Formula: C25H33FO6. Mole Weight: 448.52. Catalog: APB5534134. Alfa Chemistry Analytical Products 2
Clobetasol Propionate EP Impurity B Clobetasol Propionate EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8S,9R,10S,11S,13S,14S)-17-(2-chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-3-one. CAS No. 1356190-17-4. Molecular Formula: C22H26ClFO3. Mole Weight: 392.89. Catalog: APB1356190174. Alfa Chemistry Analytical Products
Clobetasol Propionate EP Impurity C Clobetasol Propionate EP Impurity C. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8S,9R,10S,11S,13S,14S,16R,17R)-17-(2-chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate. CAS No. 25122-52-5. Molecular Formula: C25H32ClFO5. Mole Weight: 466.97. Catalog: APB25122525. Alfa Chemistry Analytical Products 2
Clobetasol Propionate EP Impurity D Clobetasol Propionate EP Impurity D. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8S,9R,10S,11S,13S,14S,16S,17R)-17-(2-chloroacetyl)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl propionate. CAS No. 25120-99-4. Molecular Formula: C25H34ClFO5. Mole Weight: 468.99. Catalog: APB25120994. Alfa Chemistry Analytical Products 2
Clobetasol Propionate EP Impurity E Clobetasol Propionate EP Impurity E is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as an anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Molecular formula: C25H33ClO4. Mole weight: 432.98. BOC Sciences 7
Clobetasol Propionate EP Impurity E Clobetasol Propionate EP Impurity E. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C25H33ClO4. Mole Weight: 432.98. Catalog: APB07298. Alfa Chemistry Analytical Products 4
Clobetasol Propionate EP Impurity F Clobetasol Propionate EP Impurity F. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2412496-00-3. Molecular Formula: C22H27FO4. Mole Weight: 374.45. Catalog: APB2412496003. Alfa Chemistry Analytical Products 2
Clobetasol Propionate EP Impurity F Ethyl Ester Clobetasol Propionate EP Impurity F Ethyl Ester is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as an anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Synonyms: (E)-ethyl 2-((8S,9R,10S,11S,13S,14S,16S)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-7,8,9,11,12,13,15,16-octahydro-3H-cyclopenta[a]phenanthren-17(6H,10H,14H)-ylidene)acetate. Molecular formula: C24H31FO4. Mole weight: 402.50. BOC Sciences 7
Clobetasol Propionate EP Impurity G 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. Uses: Anti-inflammatory agents; glucocorticoids. Synonyms: (11β,16β)-21-Chloro-9-fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione; 21-Chloro-9-fluoro-11β,17-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione; Clobetasol Propionate EP Impurity G;Clobetasol. Grades: > 95%. CAS No. 25122-41-2. Molecular formula: C22H28ClFO4. Mole weight: 410.92. BOC Sciences 8
Clobetasol Propionate EP Impurity H Clobetasol Propionate EP Impurity H. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8S,9R,10S,11S,13S,14S,16S,17R)-17-acetyl-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate. CAS No. 4351-48-8. Molecular Formula: C25H33FO5. Mole Weight: 432.52. Catalog: APB4351488. Alfa Chemistry Analytical Products 2
Clobetasol Propionate EP Impurity I Clobetasol Propionate EP Impurity I. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11-hydroxy-10,13,16-trimethyl-17-(2-((methylsulfonyl)oxy)acetyl)-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate. CAS No. 15423-80-0. Molecular Formula: C26H35FO8S. Mole Weight: 526.61. Catalog: APB15423800. Alfa Chemistry Analytical Products
Clobetasol Propionate EP Impurity J Clobetasol Propionate EP Impurity J. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (2'R,8S,9R,10S,11S,13S,14S,16S)-4'-chloro-5'-ethyl-9-fluoro-11-hydroxy-10,13,16-trimethyl-7,8,9,10,11,12,13,14,15,16-decahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,3'(6H)-dione. CAS No. 1486466-31-2. Molecular Formula: C25H30ClFO4. Mole Weight: 448.95. Catalog: APB1486466312. Alfa Chemistry Analytical Products 2
(11 β)-9-Fluoro-11-hydroxy-16-methyl-3-oxo-androsta-1,4,16-triene-17-carboxylic Acid (11 β)-9-Fluoro-11-hydroxy-16-methyl-3-oxo-androsta-1,4,16-triene-17-carboxylic Acid is an intermediate in synthesizing (11 β)-21-Chloro-9-fluoro-11-hydroxy-16-methylpregna-1,4,16-triene-3,20-dione (C366325), which is an impurity of Clobetasol propionate (C583500). Clobetasol propionate impurity B per EP. Group: Biochemicals. Grades: Highly Purified. CAS No. 59861-00-6. Pack Sizes: 2.5mg, 5mg. Molecular Formula: C21H25FO4, Molecular Weight: 360.42. US Biological Life Sciences. USBiological 9
Worldwide
21-Deschloro Clobetasol 17-Propionate 21-Deschloro Clobetasol 17-Propionate is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Synonyms: 9-Fluoro-11β,17-dihydroxy-16β-methyl-pregna-1,4-diene-3,20-dione 17-Propionate; (11β,16β)-9-Fluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; Clobetasol Propionate EP Impurity H. Grades: 98%. CAS No. 4351-48-8. Molecular formula: C25H33FO5. Mole weight: 432.52. 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
9α-Fluoro-11β-hydroxy-16-β-methyl-3-oxoandrosta-1,4-diene-17(R)-spiro-2'-[4'-chloro-5'-ethylfuran-3'(2'H)-one 9α-Fluoro-11β-hydroxy-16-β-methyl-3-oxoandrosta-1,4-diene-17(R)-spiro-2'-[4'-chloro-5'-ethylfuran-3'(2'H)-one is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as an anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Synonyms: (2'R,8S,9R,10S,11S,13S,14S,16S)-4'-chloro-5'-ethyl-9-fluoro-11-hydroxy-10,13,16-trimethyl-7,8,9,10,11,12,13,14,15,16-decahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,3'(6H)-dione; Clobetasol Propionate EP Impurity J; (17R)-4'-Chloro-5'-ethyl-9-fluoro-11beta-hydroxy-16beta-methylspiro[androsta-1,4-diene-17,2'(3'H)-furan]-3,3'-dione; Clobetasol Propionate USP Related Compound A. Grades: ≥ 95%. CAS No. 1486466-31-2. Molecular formula: C25H30ClFO4. Mole weight: 448.95. BOC Sciences 7
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 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
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
Clobetasol Propionate Impurity 1 Clobetasol Propionate Impurity 1 is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as an anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Molecular formula: C22H27FO4. Mole weight: 374.44. BOC Sciences 7
Clobetasol Propionate Impurity 3 Clobetasol Propionate Impurity 3 is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as an anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Molecular formula: C25H31FO5. Mole weight: 430.51. BOC Sciences 7
Clobetasol Propionate Impurity 4 Clobetasol Propionate Impurity 4 is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as an anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Molecular formula: C22H27FO4. Mole weight: 374.44. BOC Sciences 7
Clobetasol Propionate Impurity 5 Clobetasol Propionate Impurity 5 is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as an anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Molecular formula: C22H30O5. Mole weight: 374.47. BOC Sciences 7
Clobetasol Propionate Impurity C 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,16α)-21-Chloro-9-fluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; Clobetasol Propionate EP Impurity C; 21-Chloro-9-fluoro-11β,17-dihydroxy-16α-methylpregna-1,4-diene-3,20-dione 17-Propionate. Grades: > 95%. CAS No. 25122-52-5. Molecular formula: C25H32ClFO5. Mole weight: 466.98. BOC Sciences 7
Clobetasone 17-Propionate Clobetasone 17-Propionate is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Synonyms: (16β)-21-Chloro-9-fluoro-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,11,20-trione; Clobetasone Propionate; 21-Chloro-9-fluoro-17-hydroxy-16β-methyl-pregna-1,4-diene-3,11,20-trione Propionate; Clobetasone Butyrate EP Impurity H; 11 Keto Clobetasol Propionate; (1R, 2S, 10S, 11S, 13S, 14R, 15S)-14-(2-Chloroacetyl)-1-fluoro-2, 13, 15-trimethyl-5, 17-dioxotetracyclo[8.7.0.02, 7.011, 15]heptadeca-3, 6-dien-14-yl propionate. Grades: 98%. CAS No. 25122-56-9. Molecular formula: C25H30ClFO5. Mole weight: 464.95. BOC Sciences 7
Dexamethasone 17α,21-Ethylorthopropionate Dexamethasone 17α,21-Ethylorthopropionate is an intermediate in synthesizing 21-Chloro-9-fluoro-11 β,17-dihydroxy-16α-methylpregna-1,4-diene-3,20-dione 17-Propionate (C366320), (Clobetasol Propionate EP Impurity C) is an impurity of Clobetasol 17-Propionate (C583500), an topical corticosteroid with anti-inflammatory properties. Group: Biochemicals. Grades: Highly Purified. CAS No. 25122-24-1. Pack Sizes: 250mg, 500mg. Molecular Formula: C27H37FO6. US Biological Life Sciences. USBiological 1
Worldwide
(11β)-9-Fluoro-11-hydroxy-16-methyl-3-oxo-androsta-1,4,16-triene-17-carboxylic Acid (11β)-9-Fluoro-11-hydroxy-16-methyl-3-oxo-androsta-1,4,16-triene-17-carboxylic Acid is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as an anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. CAS No. 59861-00-6. Molecular formula: C21H25FO4. Mole weight: 360.42. BOC Sciences 7
Clobetasol Propionate Related Compound A Clobetasol Propionate Related Compound A is one of Clobetasol propionate impurities. Clobetasol propionate is a glucocorticoid that induces monooxygenase activity in vivo. It alters the structure of tight junctions in epidermis and smoothened hedgehog pathway receptor agonist. It can be used as an anti-inflammatory, immunosuppressive and antimitotic agent. Active in vivo. Synonyms: (17R)-4'-Chloro-5'-ethyl-9-fluoro-11beta-hydroxy-16beta-methylspiro[androsta-1,4-diene-17,2'(3'H)-furan]-3,3'-dione. Grades: 98%. Molecular formula: C25H30ClFO4. Mole weight: 448.95. BOC Sciences 7

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