90987-32-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90987-32-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,8 and 7 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90987-32:
(7*9)+(6*0)+(5*9)+(4*8)+(3*7)+(2*3)+(1*2)=169
169 % 10 = 9
So 90987-32-9 is a valid CAS Registry Number.
90987-32-9Relevant articles and documents
Synthesis and Absolute Configuration of the p-Nitrobenzyl Ester of SQ 27860
Miyashita, Masaaki,Chida, Noritaka,Yoshikoshi, Akira
, p. 195 - 196 (1984)
Transformation of D-glucosamine into the p-nitrobenzyl ester (2) of SQ 27860 is described, revealing the absolute configuration of this carbapenem antibiotic as (1).
