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(6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-ethynyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91939-22-9

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91939-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91939-22-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,3 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91939-22:
(7*9)+(6*1)+(5*9)+(4*3)+(3*9)+(2*2)+(1*2)=159
159 % 10 = 9
So 91939-22-9 is a valid CAS Registry Number.

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