135830-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135830-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,8,3 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 135830-21:
(8*1)+(7*3)+(6*5)+(5*8)+(4*3)+(3*0)+(2*2)+(1*1)=116
116 % 10 = 6
So 135830-21-6 is a valid CAS Registry Number.
135830-21-6Relevant articles and documents
Cephem compounds
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, (2008/06/13)
Cephem compounds of the following formula are disclosed: STR1 wherein R1 is amino or protected amino group. R2 is H or an organic group, R3 is H or an organic group, R4 is H, lower alkyl, carboxy, protected carb