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4-furan-2-yl-2-hydroxy-3-nitro-butyric acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

777931-80-3

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777931-80-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 777931-80-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,7,9,3 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 777931-80:
(8*7)+(7*7)+(6*7)+(5*9)+(4*3)+(3*1)+(2*8)+(1*0)=223
223 % 10 = 3
So 777931-80-3 is a valid CAS Registry Number.

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