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2-Thiophenecarboxylic acid, 3-hydroxy-5-mercapto-, methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

104340-92-3

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104340-92-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104340-92-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,3,4 and 0 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 104340-92:
(8*1)+(7*0)+(6*4)+(5*3)+(4*4)+(3*0)+(2*9)+(1*2)=83
83 % 10 = 3
So 104340-92-3 is a valid CAS Registry Number.

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