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Budesonide impurity 24 Budesonide impurity 24. Uses: For analytical and research use. Group: Impurity standards. CAS No. 131918-67-7. Molecular formula: C24H30O6. Mole weight: 414.5. Catalog: APB131918677. Alfa Chemistry Analytical Products 4
Budesonide Impurity 24 Budesonide Impurity 24. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2-oxo-2-((8R,9S,10R,11S,13S,16R,17S)-11,16,17-trihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl)ethyl acetate. CAS No. 131918-72-4. Molecular formula: C24H32O6. Mole weight: 416.51. Catalog: APB131918724. Alfa Chemistry Analytical Products 4
Budesonide Impurity 25 Budesonide Impurity 25. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8R,9S,10R,11S,13S,16R,17S)-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one. CAS No. 131918-73-5. Molecular formula: C21H26O6. Mole weight: 374.43. Catalog: APB131918735. Alfa Chemistry Analytical Products 4
Budesonide EP Impurity A Budesonide EP Impurity A. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (8S,9S,10R,11S,13S,14S,16R,17S)-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one. CAS No. 13951-70-7. Molecular formula: C21H28O6. Mole weight: 376.44. Catalog: APB13951707. Alfa Chemistry Analytical Products 4
Budesonide EP Impurity B Budesonide EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6aR,6bS,7S,8aS,8bS,11aR,12aS,12bS)-7-hydroxy-8b-(2-hydroxyacetyl)-6a,8a,10-trimethyl-6a,6b,7,8,8a,8b,11a,12,12a,12b-decahydro-1H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-4(2H)-one. CAS No. 1040085-98-0. Molecular formula: C23H30O6. Mole weight: 402.48. Catalog: APB1040085980. Alfa Chemistry Analytical Products 4
Budesonide EP Impurity C Budesonide EP Impurity C. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (4aR,4bS,5S,6aS,7aR,10aR,11aS,11bS)-5-hydroxy-7a-(hydroxymethyl)-4a,6a-dimethyl-9-propyl-4b,5,6,6a,10a,11,11a,11b,12,13-decahydrochryseno[2,3-d][1,3]dioxole-2,7(4aH,7aH)-dione. CAS No. 1040085-99-1. Molecular formula: C25H34O6. Mole weight: 430.53. Catalog: APB1040085991. Alfa Chemistry Analytical Products 4
(11 β,16α)-11,16-Dihydroxyandrosta-1,4-diene-3,17-dione (11 β,16α)-11,16-Dihydroxyandrosta-1,4-diene-3,17-dione has been identified as a budesonide tablet impurity. Group: Biochemicals. Grades: Highly Purified. CAS No. 910299-74-0. Pack Sizes: 10mg, 25mg. Molecular Formula: C19H24O4, Molecular Weight: 316.39. US Biological Life Sciences. USBiological 9
Worldwide
(11 β,16α)-11-Hydroxy-16-(1-oxobutoxy)-androsta-1,4-diene-3,17-dione (11 β,16α)-11-Hydroxy-16-(1-oxobutoxy)-androsta-1,4-diene-3,17-dione is an impurity of Budesonide (B689490); an anti-inflammatory agent. Group: Biochemicals. Grades: Highly Purified. CAS No. 85234-64-6. Pack Sizes: 10mg, 100mg. Molecular Formula: C23H30O5. US Biological Life Sciences. USBiological 9
Worldwide
16a-Hydroxyprednisolone 16a-Hydroxyprednisolone. Group: Biochemicals. Alternative Names: (11 β,16α)-11,16,17,21-Tetrahydroxypregna-1,4-diene-3,20-dione; 16α-Hydroxyprednisolone; Budesonide EP Impurity A. Grades: Highly Purified. CAS No. 13951-70-7. Pack Sizes: 10g, 25g, 50g. Molecular Formula: C??H??O?. US Biological Life Sciences. USBiological 7
Worldwide
16α-Butyloxyprednisolone. (Budenoside Impurity) 16α-Butyloxyprednisolone (Budesonide EP Impurity I) is an impurity of Budesonide (B689460), a non-halogenated glucocorticoid intended for the local treatment of lung disease. Group: Biochemicals. Grades: Highly Purified. CAS No. 113930-13-5. Pack Sizes: 10mg, 100mg. Molecular Formula: C25H34O7. US Biological Life Sciences. USBiological 9
Worldwide
17α -Des- (2-hydroxyacetyl) budesonide 17α-Carboxylic Acid 17α -Des- (2-hydroxyacetyl) budesonide 17α-Carboxylic Acid is an impurity of Budesonide (B689490); an anti-inflammatory agent. Group: Biochemicals. Grades: Highly Purified. CAS No. 192057-49-1. Pack Sizes: 10mg, 50mg. Molecular Formula: C24H32O6. US Biological Life Sciences. USBiological 9
Worldwide
17α -Des- (2-hydroxyacetyl) budesonide 17α-Carboxylic Acid-d8 17α -Des- (2-hydroxyacetyl) budesonide 17α-Carboxylic Acid-d8 is the isotope labelled analog of 17α -Des- (2-hydroxyacetyl) budesonide 17α-Carboxylic Acid (D289895); an impurity of Budesonide (B689490) which is an anti-inflammatory agent. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 10mg. Molecular Formula: C24H24D8O6, Molecular Weight: 424.56. US Biological Life Sciences. USBiological 9
Worldwide
(2R, 3R, 4aS, 4bS, 10aR, 10bS, 11S, 12aS)-2, 3, 11-Trihydroxy-2-(hydroxymethyl)-10a, 12a-dimethyl-2, 3, 4, 4a, 5, 6, 10b, 11, 12, 12a-decahydrochrysene-1, 8(4bH, 10aH)-dione (2R, 3R, 4aS, 4bS, 10aR, 10bS, 11S, 12aS)-2, 3, 11-trihydroxy-2-(hydroxymethyl)-10a, 12a-dimethyl-2, 3, 4, 4a, 5, 6, 10b, 11, 12, 12a-decahydrochrysene-1, 8(4bH, 10aH)-dione is an intermediate in the synthesis of 16α,17-[(1RS)-butylidenebis(oxy)]-11 β-hydroxy-17-(hydroxymethyl)-D-homoandrosta-1,4-diene-3,17a-dione which is an impurity of Budesonide (B689490), an antiinflammatory agent. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 25mg, 50mg. Molecular Formula: C21H28O6. US Biological Life Sciences. USBiological 10
Worldwide
Desonide Desonide (Budesonide EP Impurity F) is an impurity of Budesonide, an anti-inflammatory. Group: Biochemicals. Alternative Names: (11 β , 16α )-11, 21-Dihydroxy-16, 17-[ (1-methylethylidene)bis (oxy)]pregna-1, 4-diene-3, 20-dione; 16α-Hydroxyprednisolone Acetonide; Locapred; Topifug; Tridesilon. Grades: Highly Purified. CAS No. 638-94-8. Pack Sizes: 10mg, 50mg, 100mg, 250mg. US Biological Life Sciences. USBiological 2
Worldwide

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