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N-[4-oxo-4-(1H-pyrrol-2-yl)]butanoyl-L-leucine methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

345971-19-9

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345971-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 345971-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,5,9,7 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 345971-19:
(8*3)+(7*4)+(6*5)+(5*9)+(4*7)+(3*1)+(2*1)+(1*9)=169
169 % 10 = 9
So 345971-19-9 is a valid CAS Registry Number.

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