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o-(9-Oxofluoren-4-ylcarbonyl)benzoesaeure is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

69690-56-8

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69690-56-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69690-56-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,6,9 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 69690-56:
(7*6)+(6*9)+(5*6)+(4*9)+(3*0)+(2*5)+(1*6)=178
178 % 10 = 8
So 69690-56-8 is a valid CAS Registry Number.

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