25958-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25958-43-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,9,5 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 25958-43:
(7*2)+(6*5)+(5*9)+(4*5)+(3*8)+(2*4)+(1*3)=144
144 % 10 = 4
So 25958-43-4 is a valid CAS Registry Number.
25958-43-4Relevant articles and documents
Methylation of 2-Acylamido-1,3,4-thiadiazoles. An Infrared, Proton and Carbon Nmr Study
Leppard, D.,Sauter, H.
, p. 1469 - 1472 (2007/10/02)
The site of methylation in 2-acylamido-1,3,4-thiadiazoles can be determined by ir and Carbon-13 nmr spectroscopy.