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butyric (ethyl carbonic) anhydride is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

874525-73-2

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874525-73-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 874525-73-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,5,2 and 5 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 874525-73:
(8*8)+(7*7)+(6*4)+(5*5)+(4*2)+(3*5)+(2*7)+(1*3)=202
202 % 10 = 2
So 874525-73-2 is a valid CAS Registry Number.

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