145236-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 145236-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,2,3 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 145236-53:
(8*1)+(7*4)+(6*5)+(5*2)+(4*3)+(3*6)+(2*5)+(1*3)=119
119 % 10 = 9
So 145236-53-9 is a valid CAS Registry Number.
145236-53-9Relevant articles and documents
FACILE SYNTHESIS OF 3-OXO-1,2,5-THIADIAZOLES; 7β-CEPHALOSPHORINS
Lunn, W. H. W.,Shadle, J. K.
, p. 8615 - 8620 (2007/10/02)
A simple procedure is described for the preparation of 3-oxo-1,2,5-thiadiazoles under mild conditions.This procedure has provided hitherto unknown 7β-3-oxo-1,2,5-thiadiazol-2-yl)cephalosporins.