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2-methylnona-3,5-diyn-2-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

99172-22-2

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99172-22-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99172-22-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,1,7 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 99172-22:
(7*9)+(6*9)+(5*1)+(4*7)+(3*2)+(2*2)+(1*2)=162
162 % 10 = 2
So 99172-22-2 is a valid CAS Registry Number.

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