187972-12-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187972-12-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,9,7 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 187972-12:
(8*1)+(7*8)+(6*7)+(5*9)+(4*7)+(3*2)+(2*1)+(1*2)=189
189 % 10 = 9
So 187972-12-9 is a valid CAS Registry Number.
187972-12-9Relevant articles and documents
A convenient reagent for N-hydroxyguanylation
Jirgensons,Kums,Kauss,Kalvins
, p. 315 - 322 (1997)
1-Benzyloxy-3-benzyloxycarbonylthiourea was prepared and demonstrated as a useful reagent for direct N-hydroxyguanylation of various amines.