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4-nitro-benzofuran-2-carboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

69604-06-4

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69604-06-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69604-06-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,6,0 and 4 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 69604-06:
(7*6)+(6*9)+(5*6)+(4*0)+(3*4)+(2*0)+(1*6)=144
144 % 10 = 4
So 69604-06-4 is a valid CAS Registry Number.

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