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(Pentachlorphenoxymethyl)-β-(penta-chlorphenoxy)-ethyl-ether is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21112-81-2

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21112-81-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21112-81-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,1 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21112-81:
(7*2)+(6*1)+(5*1)+(4*1)+(3*2)+(2*8)+(1*1)=52
52 % 10 = 2
So 21112-81-2 is a valid CAS Registry Number.

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