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2β-(acetoxymethyl)-2α-methyl-3α-methoxy-3β-<((p-nitrobenzoyl)oxy)methyl>-6β-(phenoxyacetamido)penam (S)-sulfoxide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

99809-80-0

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99809-80-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99809-80-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,0 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99809-80:
(7*9)+(6*9)+(5*8)+(4*0)+(3*9)+(2*8)+(1*0)=200
200 % 10 = 0
So 99809-80-0 is a valid CAS Registry Number.

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