Category
Methylprednisolone
CAS Number
Methylprednisolone STD-83-43-2: IMP-A-91523-05-6: IMP-B-NA: IMP-C-61919-52-6: IMP-D-1338549-02-2: IMP-E-229019-44-7: IMP-F-1625-39-4: IMP-G-93269-35-3: IMP-H-18462-27-6: IMP-I-6870-94-6
Molecular Formula
Methylprednisolone STD-C22H30O5: IMP-A-C22H28O5: IMP-B-C22H30O6: IMP-C-C20H26O3: IMP-D-C22H28O4: IMP-E-C21H28O4: IMP-F-C22H32O5: IMP-G-C22H28O4: IMP-H-C22H30O5: IMP-I-C22H30O4
Molecular Weight
Methylprednisolone STD-374.47: IMP-A-372.45: IMP-B-390.47: IMP-C-314.42: IMP-D-356.46: IMP-E-344.44: IMP-F-376.49: IMP-G-356.46: IMP-H-374.47: IMP-I-358.47
Synonym

Methylprednisolone STD-(6S,8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one; 11β,17α,21-Trihydroxy-6α-methyl-1,4-pregnadiene-3,20-dione; 6α-Methyl-11β,17α,21-trihydroxy-1,4-pregnadiene-3,20-dione; 6α-Methylprednisolone; Medrol; Medrone; (6S,8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one

Methylprednisolone EP-Impurity-A-17,21-Dihydroxy-6α-methylpregna-1,4-diene-3,11,20-trione; (6S,8S,9S,10R,13S,14S,17R)-17-hydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-6,7,8,9,12,14,15,16-octahydrocyclopenta[a]phenanthrene-3,11-dione

Methylprednisolone EP-Impurity-B-11beta,17,21,21-Tetrahydroxy-6a-methylpregna-1,4-diene-3,20-dione

Methylprednisolone EP-Impurity-C-11beta-Hydroxy-6a-methylandrosta-1,4-diene-3,17-dione; (6S,8S,9S,10R,11S,13S,14S)-11-hydroxy-6,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione

Methylprednisolone EP-Impurity-D-2-Hydroxy-2-((6S,8S,9S,10R,11S,13S,14S)-11-hydroxy-6,10,13-trimethyl-3-oxo-7,8,9,11,12,13,15,16-octahydro-3H-cyclopenta[a]phenanthren-17(6H,10H,14H)-ylidene)acetaldehyde

Methylprednisolone EP-Impurity-E-(6S,8S,9S,10R,11S,13S,14S,17S)-11-Hydroxy-6,10,13-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid

Methylprednisolone EP-Impurity-F-(6S,8S,9S,10R,11S,13S,14S,17R)-11,17-Dihydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one

Methylprednisolone EP-Impurity-G-(6S,8S,10R,13S,14S,17R)-17-Hydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one

Methylprednisolone EP-Impurity-H-(6R,8S,9S,10R,11S,13S,14S,17R)-11,17-Dihydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

Methylprednisolone EP-Impurity-I-(6S,8S,9S,10R,11S,13S,14S,17R)-17-acetyl-11,17-dihydroxy-6,10,13-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

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Methylprednisolone for System Suitability A CRS is a certified reference standard (CRS) provided by pharmacopoeial authorities commonly the European Pharmacopoeia for use in analytical method verification. It is specifically intended to check system performance in chromatographic assays of methylprednisolone, ensuring parameters such as resolution, retention time, and peak shape meet required criteria before sample testing. This standard helps confirm that the analytical system is functioning reliably and producing valid results.