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C19H21N5O4 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

288083-40-9

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288083-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 288083-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,8,0,8 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 288083-40:
(8*2)+(7*8)+(6*8)+(5*0)+(4*8)+(3*3)+(2*4)+(1*0)=169
169 % 10 = 9
So 288083-40-9 is a valid CAS Registry Number.

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