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1-(2-ethyl-5-nitro-phenyl)-ethanone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

103203-46-9

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103203-46-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103203-46-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,2,0 and 3 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 103203-46:
(8*1)+(7*0)+(6*3)+(5*2)+(4*0)+(3*3)+(2*4)+(1*6)=59
59 % 10 = 9
So 103203-46-9 is a valid CAS Registry Number.

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