158945-86-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158945-86-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,9,4 and 5 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 158945-86:
(8*1)+(7*5)+(6*8)+(5*9)+(4*4)+(3*5)+(2*8)+(1*6)=189
189 % 10 = 9
So 158945-86-9 is a valid CAS Registry Number.
158945-86-9Relevant academic research and scientific papers
Cephalosporin derivatives
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, (2008/06/13)
The present invention relates to novel cephalosporin derivatives or pharmaceutically acceptable non-toxic salts thereof useful as antibiotics and to processes for the preparation thereof. STR1 wherein: R1 is a hydrogen or an optionally halogen-
