121664-59-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121664-59-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,6 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 121664-59:
(8*1)+(7*2)+(6*1)+(5*6)+(4*6)+(3*4)+(2*5)+(1*9)=113
113 % 10 = 3
So 121664-59-3 is a valid CAS Registry Number.
121664-59-3Relevant articles and documents
Synthesis of dl-Guinesines and Related Compounds
Mitsudera, Hiroyuki,Uneme, Hideki,Okada, Yoshiyuki,Numata, Mitsuo,Kato, Atsushi
, p. 1361 - 1367 (2007/10/02)
Guinesines A, B, and C were synthesized starting from 1,3-bis(benzylthio)-2-propanone and N-methyl-2,2-diethoxypyrrolidine.