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5-hydroxy-2-methyl-2-(4-methylpent-3-enyl)-2H-chromene-6-carboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

909781-72-2

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909781-72-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 909781-72-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,9,7,8 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 909781-72:
(8*9)+(7*0)+(6*9)+(5*7)+(4*8)+(3*1)+(2*7)+(1*2)=212
212 % 10 = 2
So 909781-72-2 is a valid CAS Registry Number.

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