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7-Methoxy-1,4-dihydro-naphthalene-1-sulfonic acid (1,1,3,3-tetramethyl-butyl)-amide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139633-41-3

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139633-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139633-41-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,6,3 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139633-41:
(8*1)+(7*3)+(6*9)+(5*6)+(4*3)+(3*3)+(2*4)+(1*1)=143
143 % 10 = 3
So 139633-41-3 is a valid CAS Registry Number.

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