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2,3,5,6-tetracarboxy-7-ethoxy-1,6-dimethylbicyclo<2.2.2>oct-Δ7-ene-dianhydride is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

99348-51-3

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99348-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99348-51-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,3,4 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99348-51:
(7*9)+(6*9)+(5*3)+(4*4)+(3*8)+(2*5)+(1*1)=183
183 % 10 = 3
So 99348-51-3 is a valid CAS Registry Number.

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