133958-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133958-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,5 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 133958-31:
(8*1)+(7*3)+(6*3)+(5*9)+(4*5)+(3*8)+(2*3)+(1*1)=143
143 % 10 = 3
So 133958-31-3 is a valid CAS Registry Number.
133958-31-3Relevant articles and documents
AMINOMETHYLATION OF PEMOLINE
Ramsh, S. M.,Khrabrova, E. S.,Shamina, L. P.
, p. 1387 - 1391 (2007/10/02)
Aminomethylation of pemoline with primary amines has given the corresponding oxazolo-1,3,5-triazines or oxazolo-1,3,5,7-tetrazocines.When secondary amines were used, the 5-amino- or 3,5-bis(aminomethyl)derivatives were obtained.
