21076-24-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21076-24-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,7 and 6 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 21076-24:
(7*2)+(6*1)+(5*0)+(4*7)+(3*6)+(2*2)+(1*4)=74
74 % 10 = 4
So 21076-24-4 is a valid CAS Registry Number.
21076-24-4Relevant articles and documents
Thiocarbonyl Transfer Reagent Chemistry. IV. The Preparation of 1,1- and 1,2-Disubstituted Thiosemicarbazides Unsubstituted in the 4-Position
Larsen, Charles,Harpp, David N.
, p. 91 - 98 (2007/10/02)
The utility of 1,1'-thiocarbonyldi(1,2,4-triazole) 3 as a thiocarbonyl transfer reagent capable of sequential substitution by amines and hydrazines is demonstrated.