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2-(4-Chloro-benzenesulfonyl)-4,4-bis-ethanesulfonyl-but-3-enenitrile is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

71873-78-4

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71873-78-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71873-78-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,7 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71873-78:
(7*7)+(6*1)+(5*8)+(4*7)+(3*3)+(2*7)+(1*8)=154
154 % 10 = 4
So 71873-78-4 is a valid CAS Registry Number.

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