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(2-oxo-5-phenyl-[1,3,4]oxadiazol-3-yl)-phosphonothioic acid O,O'-diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

40403-13-2

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40403-13-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40403-13-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,4,0 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 40403-13:
(7*4)+(6*0)+(5*4)+(4*0)+(3*3)+(2*1)+(1*3)=62
62 % 10 = 2
So 40403-13-2 is a valid CAS Registry Number.

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