ChemicalBook--->CAS DataBase List--->5251-34-3

5251-34-3

5251-34-3 Structure

5251-34-3 Structure
IdentificationBack Directory
[Name]

cloprednol
[CAS]

5251-34-3
[Synonyms]

RS-4691
Novacort
Synestan
Syntestan
Cloradryn
cloprednol
Cloprednole
cloprednol USP/EP/BP
Methylprednisolone Impurity 33 (Cloprednol)
6-Chloro-11β,17,21-trihydroxypregna-1,4,6-triene-3,20-dione
6-Chloro-11beta,17,21-trihydroxypregna-1,4,6-triene-3,20-dione
(11β)-6-Chloro-11,17,21-trihydroxypregna-1,4,6-triene-3,20-dione
Pregna-1,4,6-triene-3,20-dione, 6-chloro-11,17,21-trihydroxy-, (11β)-
(8S,9S,10R,11S,13S,14S,17R)-6-chloro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-9,11,12,14,15,16-hexahydro-8H-cyclopenta[a]phenanthren-3-one
[EINECS(EC#)]

226-052-6
[Molecular Formula]

C21H25ClO5
[MDL Number]

MFCD00200364
[MOL File]

5251-34-3.mol
[Molecular Weight]

392.876
Chemical PropertiesBack Directory
[Melting point ]

>125°C (dec.)
[Boiling point ]

600.3±55.0 °C(Predicted)
[density ]

1.40±0.1 g/cm3(Predicted)
[storage temp. ]

-20°C Freezer
[solubility ]

Ethyl Acetate (Slightly), Methanol (Slightly)
[form ]

Solid
[pka]

12.30±0.70(Predicted)
[color ]

White to Off-White
Hazard InformationBack Directory
[Originator]

Syntestan,Syntex,W. Germany,1980
[Uses]

A systematic corticosteroid. Anti-inflammatory.
[Definition]

ChEBI: Cloprednol is a 21-hydroxy steroid.
[Manufacturing Process]

A mixture of 5 g of the 21-acetate of 6α-chlorohydrocortisone, 7 g of chloranil and 100 cc of n-amyl alcohol was refluxed for 16 hours, cooled and diluted with ether. The solution was successively washed with water, 5% sodium carbonate solution and water, dried over anhydrous sodium sulfate, filtered and evaporated to dryness under reduced pressure. Chromatographic purification of the residue yielded the 21-acetate of 6-chloro-δ1,4,6- pregnatriene-11β,17α,21-triol-3,20-dione.
[Therapeutic Function]

Glucocorticoid
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