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4-Phenylaminopyrrolo<3.2-d>pyrimidine hydrochloride is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

84905-81-7

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84905-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84905-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,0 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84905-81:
(7*8)+(6*4)+(5*9)+(4*0)+(3*5)+(2*8)+(1*1)=157
157 % 10 = 7
So 84905-81-7 is a valid CAS Registry Number.

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