91176-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91176-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,7 and 6 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91176-04:
(7*9)+(6*1)+(5*1)+(4*7)+(3*6)+(2*0)+(1*4)=124
124 % 10 = 4
So 91176-04-4 is a valid CAS Registry Number.
91176-04-4Relevant articles and documents
REMOTE FUNCTIONALIZATION ON THE STEROID β-FACE: ATTACK ON AN ANGULAR METHYL GROUP, AND INTO THE SIDECHAIN
Breslow, Ronald,Maitra, Uday,Heyer, Dennis
, p. 1123 - 1126 (2007/10/02)
Benzophenonealkanoate esters of 6-β-cholestanes insert photolytically into C-15, C-16, and the C-18 methyl, or into C-23 and C-25 of the sidechain, depending on the length of the attaching chain.