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3-(3-cyano-4,5,6,7-tetrahydro-benzo[b]thiophen-2-ylamino)-but-2-enoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

70291-52-0

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70291-52-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70291-52-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,2,9 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 70291-52:
(7*7)+(6*0)+(5*2)+(4*9)+(3*1)+(2*5)+(1*2)=110
110 % 10 = 0
So 70291-52-0 is a valid CAS Registry Number.

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