111997-50-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111997-50-3 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, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 111997-50:
(8*1)+(7*1)+(6*1)+(5*9)+(4*9)+(3*7)+(2*5)+(1*0)=133
133 % 10 = 3
So 111997-50-3 is a valid CAS Registry Number.
111997-50-3Relevant academic research and scientific papers
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.
