methylprednisolone and its Impurities
methylprednisolone is typically used for its anti-inflammatory effects. It is available as a generic medication. It is sold under the brand names Depo-Medrol and Solu-Medrol. It is given by mouth, by injection into a vein or muscle, or applied to the skin. Reference standards of Methylprednisolone API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


2-((R)-4-((3R,5R,8R,9S,10S,12S,13R,14S,17R)-3,12-Dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanamido)acetic
(6S,8S,9S,10R,11S,13S,14S,17R)-11,17-Dihydroxy-6,10,13-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carbaldehyde
Catalogue No.:PA 13 32530
CAS :
NA
Molecular Formula : C21H28O4
Molecular Weight : 344.45


(6S,8S,9S,10R,11S,13S,14S)-11-Hydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-3-one
(6S,8S,9S,10R,11S,13S,14S)-11-Hydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-3-one
Catalogue No.:PA 13 32540
CAS :
NA
Molecular Formula : C22H28O4
Molecular Weight : 356.46


Methylprednisolone Related Compound A (17,21-Dihydroxy-6alpha-methylpregna-1,4-diene-3,11,20-trione (1435014)
Methylprednisolone Related Compound A (17,21-Dihydroxy-6alpha-methylpregna-1,4-diene-3,11,20-trione (1435014)
Catalogue No.:PA USP1435014
CAS :
91523-05-6
Molecular Formula : NA
Molecular Weight : NA


Methylprednisolone Related Compound C (11beta-Hydroxy-6alpha-methylandrosta-1,4-diene-3,17-dione) (1435036)
Methylprednisolone Related Compound C (11beta-Hydroxy-6alpha-methylandrosta-1,4-diene-3,17-dione) (1435036)
Catalogue No.:PA USP1435036
CAS :
61919-52-6
Molecular Formula : NA
Molecular Weight : NA


(6S,8S,9S,10R,13S,14S,17R)-17-Hydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-1,6,7,8,9,10,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-3,11(2H)-dione
(6S,8S,9S,10R,13S,14S,17R)-17-Hydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-1,6,7,8,9,10,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-3,11(2H)-dione
Catalogue No.:PA 13 0321004
CAS :
1746-38-9
Molecular Formula : C22H30O5
Molecular Weight : 374.48


4-(2-((6S,8S,9S,10R,13S,14S,17R)-17-((3-Carboxypropanoyl)oxy)-6,10,13-trimethyl-3,11-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethoxy)-4-oxobutanoic Acid
4-(2-((6S,8S,9S,10R,13S,14S,17R)-17-((3-Carboxypropanoyl)oxy)-6,10,13-trimethyl-3,11-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethoxy)-4-oxobutanoic Acid
Catalogue No.:PA 13 0321007
CAS :
NA
Molecular Formula : C30H36O11
Molecular Weight : 572.61


(6S,6'S,8S,8'S,9S,9'S,10R,10'R,11S,11'S,13S,13'S,14S,14'S,17R,17'R)-17,17'-(2,2'-Oxybis(acetyl))bis(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)
(6S,6'S,8S,8'S,9S,9'S,10R,10'R,11S,11'S,13S,13'S,14S,14'S,17R,17'R)-17,17'-(2,2'-Oxybis(acetyl))bis(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)
Catalogue No.:PA 13 0321012
CAS :
NA
Molecular Formula : C44H58O9
Molecular Weight : 730.94


(6S,8S,9S,10R,11R,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
(6S,8S,9S,10R,11R,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
Catalogue No.:PA 13 0321013
CAS :
105500-05-8
Molecular Formula : C22H30O5
Molecular Weight : 374.48


(6R,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
(6R,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
Catalogue No.:PA 13 0321016
CAS :
1048031-80-6
Molecular Formula : C22H30O4
Molecular Weight : 358.48


(S)-1-((4R,7S,10S,13S,16R)-7-(2-Amino-2-oxoethyl)-13-((S)-sec-butyl)-16-(4-ethoxybenzyl)-10-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)-N-((S)-1,5-diamino-1-oxopentan-2-yl)pyrrolidine-2-carboxamide 2,2,2-Trifluoroacetate
(S)-1-((4R,7S,10S,13S,16R)-7-(2-Amino-2-oxoethyl)-13-((S)-sec-butyl)-16-(4-ethoxybenzyl)-10-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)-N-((S)-1,5-diamino-1-oxopentan-2-yl)pyrrolidine-2-carboxamide 2,2,2-Trifluoroacetate
Catalogue No.:PA 28 0371003
CAS :
NA
Molecular Formula : C43H65F3N10O13S2
Molecular Weight : 1051.17