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Pentanedioic acid, 2-cyano-2-fluoro-3-methyl-, 1-ethyl 5-methyl ester (9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90428-57-2

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90428-57-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90428-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,2 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90428-57:
(7*9)+(6*0)+(5*4)+(4*2)+(3*8)+(2*5)+(1*7)=132
132 % 10 = 2
So 90428-57-2 is a valid CAS Registry Number.

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