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2,3,4-trimethoxy-6,7-(methylenedioxy)-9,10-dihydro-10-methyl-10-hydroxy-9-oxophenanthrene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74809-71-5

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74809-71-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74809-71-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,0 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74809-71:
(7*7)+(6*4)+(5*8)+(4*0)+(3*9)+(2*7)+(1*1)=155
155 % 10 = 5
So 74809-71-5 is a valid CAS Registry Number.

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