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2-Benzofurancarboxylic acid, 2,3-dihydro-4-methyl-7-(1-methylethyl)-3-oxo-, ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139213-40-4

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139213-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139213-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,1 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139213-40:
(8*1)+(7*3)+(6*9)+(5*2)+(4*1)+(3*3)+(2*4)+(1*0)=114
114 % 10 = 4
So 139213-40-4 is a valid CAS Registry Number.

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