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(6R)-8-oxo-7t-(2-phenoxy-acetylamino)-(6rH)-5-oxa-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

72777-66-3

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72777-66-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72777-66-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,7,7 and 7 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 72777-66:
(7*7)+(6*2)+(5*7)+(4*7)+(3*7)+(2*6)+(1*6)=163
163 % 10 = 3
So 72777-66-3 is a valid CAS Registry Number.

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