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4-(3-cyano-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-2-ylsulfanyl)-3-oxo-butyric acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

290299-63-7

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290299-63-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 290299-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,0,2,9 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 290299-63:
(8*2)+(7*9)+(6*0)+(5*2)+(4*9)+(3*9)+(2*6)+(1*3)=167
167 % 10 = 7
So 290299-63-7 is a valid CAS Registry Number.

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