143539-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143539-25-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,3 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 143539-25:
(8*1)+(7*4)+(6*3)+(5*5)+(4*3)+(3*9)+(2*2)+(1*5)=127
127 % 10 = 7
So 143539-25-7 is a valid CAS Registry Number.
143539-25-7Relevant academic research and scientific papers
SYNTHESIS OF NOVEL HETEROCYCLES FROM THIAZOLECARBOHYDRAZIDES
Mamedov, V. A.,Nuretdinov, I. A.,Sibgatullina, F. G.
, p. 534 - 536 (2007/10/02)
Cyclization of 2-methyl (or -phenyl)-5-phenylthiazole-4-carbohydrazides (1) and (2) under various conditions gives differing oxadiazoles: 2-(2'-substituted-5'-phenyl-4'-thiazolyl)-1,3,4-oxadiazole-5-thiones (7) and (8), and 2-(2'-substituted-5'-phenyl-4'-
