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(6R)-3-acetoxymethyl-7c-methoxy-7t-(2-nitro-phenylsulfanylamino)-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 2,2-dimethyl-propionyloxymethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

73403-45-9

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73403-45-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73403-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,0 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73403-45:
(7*7)+(6*3)+(5*4)+(4*0)+(3*3)+(2*4)+(1*5)=109
109 % 10 = 9
So 73403-45-9 is a valid CAS Registry Number.

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