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1,1-Cyclobutanedimethanol, 3-(2-amino-4-chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138420-52-7

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138420-52-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138420-52-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,2 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138420-52:
(8*1)+(7*3)+(6*8)+(5*4)+(4*2)+(3*0)+(2*5)+(1*2)=117
117 % 10 = 7
So 138420-52-7 is a valid CAS Registry Number.

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