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9β,11-epoxy-16α-methyl-3,17,21-trihydroxy-1,3,5-triene-20-one 21-acetate 3-(4-nitrobenzoate) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1178555-52-6

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1178555-52-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1178555-52-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,8,5,5 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1178555-52:
(9*1)+(8*1)+(7*7)+(6*8)+(5*5)+(4*5)+(3*5)+(2*5)+(1*2)=186
186 % 10 = 6
So 1178555-52-6 is a valid CAS Registry Number.

1178555-52-6Relevant academic research and scientific papers

PROCESS FOR THE PREPARATION OF 6-ALPHA-FLUORO PREGNANES

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Paragraph 0033; 0034, (2014/07/08)

Disclosed is a process for the preparation of 6-α-fluoro pregnanes of formula I wherein R1 is an acyl group, R2 can be H, alpha methyl or beta methyl, and the dotted line can represent a double bond, comprising fluorination with electrophilic fluorinating agents in the 6 position of compounds of formula III, wherein R1, R2 and the dotted line have the meanings stated above, in an inert solvent, in the presence of a basic catalyst at temperatures ranging between 0 and 30° C.

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