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phosphorodichloridous acid 2,2,2-tribromo-ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

54921-66-3

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54921-66-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54921-66-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,9,2 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 54921-66:
(7*5)+(6*4)+(5*9)+(4*2)+(3*1)+(2*6)+(1*6)=133
133 % 10 = 3
So 54921-66-3 is a valid CAS Registry Number.

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