68637-39-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68637-39-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,6,3 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 68637-39:
(7*6)+(6*8)+(5*6)+(4*3)+(3*7)+(2*3)+(1*9)=168
168 % 10 = 8
So 68637-39-8 is a valid CAS Registry Number.
68637-39-8Relevant articles and documents
[[[Imidazolidinyl amino]carbonyl]amino]acetyl cephalosporin derivatives
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, (2008/06/13)
[[[Imidazolidinyl amino]carbonyl]amino]acetylcephalosporin derivatives having the formula STR1 wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, diphenyl-lower alkyl, tri(lower alkyl)silyl, trihaloethyl, a salt forming ion, or the group STR2 R1