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(E)-2-Butene-1,2,4-tricarboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

28791-67-5

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28791-67-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28791-67-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,7,9 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 28791-67:
(7*2)+(6*8)+(5*7)+(4*9)+(3*1)+(2*6)+(1*7)=155
155 % 10 = 5
So 28791-67-5 is a valid CAS Registry Number.

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