156177-45-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156177-45-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,1,7 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 156177-45:
(8*1)+(7*5)+(6*6)+(5*1)+(4*7)+(3*7)+(2*4)+(1*5)=146
146 % 10 = 6
So 156177-45-6 is a valid CAS Registry Number.
156177-45-6Relevant articles and documents
Novel Steroidal Chiral Auxiliaries: Enantioselective Synthesis of Chiral α-Hydroxy Acids
Huang, Deeng-Lih,Draper, Richard W.
, p. 661 - 662 (1994)
The synthesis is reported of three novel steroidal chiral auxiliaries (4) which were used to generate an α-hydroxy acid in high optical purity (90-98percent ee).