208254-13-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208254-13-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,2,5 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 208254-13:
(8*2)+(7*0)+(6*8)+(5*2)+(4*5)+(3*4)+(2*1)+(1*3)=111
111 % 10 = 1
So 208254-13-1 is a valid CAS Registry Number.
208254-13-1Relevant articles and documents
PROCESS FOR PRODUCING (5 ALPHA, 7 ALPHA)-3-SPIRO-2'-(1',3'-DIOXOLAN)-24-OXOCHOLEST-22-EN-7-YL BENZOATE
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Page/Page column 7,8, (2008/06/13)
The present invention provides a method of producing (5α,7α)-3-spiro-2'-(1',3'-dioxolan)-24-oxocholest-22-en-7-yl benzoate represented by the formula (I) including dissolving a crude product containing (5α,7α)-3-spiro-2'-(1',3'-dioxolan)-24-oxocholest-22-
