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1-Hydroxy-1,4,4-triphenyl-1,4-dihydro-naphthalene-2,3-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

42523-81-9

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42523-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42523-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,2 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 42523-81:
(7*4)+(6*2)+(5*5)+(4*2)+(3*3)+(2*8)+(1*1)=99
99 % 10 = 9
So 42523-81-9 is a valid CAS Registry Number.

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