Betamethasone

Post Date:
Mar 11,2013
Expiry Date:
Mar 11,2014
Detailed Description:
Cas No. :378-44-9 Quantity: 10Metric Tons
Payment Method: T/T,L/C
[Product name]: Betamethasone
[Cas No.]: 378-44-9
[Product category]: corticosteroids
[Packing specification]: 1KG/tin
[specification]: CP/EP/USP/BP
[Approval No.]: Guo yao Zhun Zi H12020203

Quality specification

[Appearance]: white or almost white crystalline powder, odorless and tasted bitter
[Identification]: it should be positive
[absorptive index]: 382~406
[related substance]:max impurity <=1.0%, any other impurity <= 0.5%, total impurities <=2.0%
[loss on drying]: <=0.5%
[residue on ignition]: <=0.1%
[assay]: calculate content of C22H29FO5, 97.0%~103.0%
[storage]: store in airtight container, protected from light

E-mail: jill8470 at yahoo dot cn
CAS Registry Number:
378-44-9
Synonyms:
;Betamethasone base;9a-fluoro-11b,17a,21-trihydroxy-16b-methylpregna-1,4-diene-3,20-dione;9alpha-fluoro-16beta-methylprednisolone;9-fluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione;(11beta,16alpha)-9-fluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione;
Molecular Formula:
C₂₂H₂₉FO₅
Molecular Weight:
392.4611
Molecular Structure:

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