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6-(3,7-Dimethyl-3,6-octadienyl)-3,4,6,7-tetrahydro-5-hydroxy-2,3-dimethyl-6-(3-methylbutyl)-4,7-dioxo-β-phenyl-2H-1-benzopyran-8-propanoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81559-55-9

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81559-55-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81559-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,5 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81559-55:
(7*8)+(6*1)+(5*5)+(4*5)+(3*9)+(2*5)+(1*5)=149
149 % 10 = 9
So 81559-55-9 is a valid CAS Registry Number.

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