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2H-1-Benzopyran-2-one, 5,7-bis(acetyloxy)-4-(bromomethyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90059-75-9

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90059-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90059-75-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,0,5 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 90059-75:
(7*9)+(6*0)+(5*0)+(4*5)+(3*9)+(2*7)+(1*5)=129
129 % 10 = 9
So 90059-75-9 is a valid CAS Registry Number.

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