81968-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81968-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,6 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81968-57:
(7*8)+(6*1)+(5*9)+(4*6)+(3*8)+(2*5)+(1*7)=172
172 % 10 = 2
So 81968-57-2 is a valid CAS Registry Number.
81968-57-2Relevant articles and documents
ASYMMETRIC SYNTHESIS BASED ON CHIRAL DIAMINES HAVING PYRROLIDINE RING
Mukaiyama, Teruaki
, p. 4111 - 4119 (1981)
Various highly stereoselective asymmetric reactions based on chiral diamines having pyrrolidine ring are described.Some of these reactions have been successfully applied to the syntheses of natural products.