111997-47-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111997-47-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,9 and 7 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 111997-47:
(8*1)+(7*1)+(6*1)+(5*9)+(4*9)+(3*7)+(2*4)+(1*7)=138
138 % 10 = 8
So 111997-47-8 is a valid CAS Registry Number.
111997-47-8Relevant articles and documents
Studies on Thioamides and Their Derivatives,VI. New Synthesis of 5-Membered Heterocyclic Compounds
Santus, Maria
, p. 179 - 182 (2007/10/02)
Simple N-monosubstituted thioamides react with acid hydrazides to form 1,2,4-triazole derivatives.N,N-Disubstituted thioamides alkylated with methyl iodide readily yield with acid hydrazides 1,3,4-oxadiazoles.
