72602-77-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72602-77-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,6,0 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 72602-77:
(7*7)+(6*2)+(5*6)+(4*0)+(3*2)+(2*7)+(1*7)=118
118 % 10 = 8
So 72602-77-8 is a valid CAS Registry Number.
72602-77-8Relevant articles and documents
Preparation of 1,5-disubstituted tetrazoles under phase-transfer conditions
Artamonova,Zhivich,Dubinskii,Koldobskii
, p. 1428 - 1430 (2007/10/03)
Imidoyl chlorides, obtained by common methods from a wide range of aromatic mono- and diamides, are smoothly converted to the corresponding tetrazoles in high yields by treatment with NaN3 under phase-transfer conditions.