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chloro-(2-chloro-phenylhydrazono)-acetic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

40345-16-2

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40345-16-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40345-16-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,3,4 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 40345-16:
(7*4)+(6*0)+(5*3)+(4*4)+(3*5)+(2*1)+(1*6)=82
82 % 10 = 2
So 40345-16-2 is a valid CAS Registry Number.
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