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2,2-dimethyl-5-(2-methyl-trans-crotonoyloxy)-10-phenyl-3,4-dihydro-2H-pyrano[2,3-f]chromen-8-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

119417-17-3

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119417-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119417-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,4,1 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 119417-17:
(8*1)+(7*1)+(6*9)+(5*4)+(4*1)+(3*7)+(2*1)+(1*7)=123
123 % 10 = 3
So 119417-17-3 is a valid CAS Registry Number.
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