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1,4,4a,5,8,8a-hexahydro-1,4-exo-oxa-5,8-exo-methanonaphthalene-4a,8a-dicarboxylic anhydride is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81423-99-6

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81423-99-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81423-99-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,2 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81423-99:
(7*8)+(6*1)+(5*4)+(4*2)+(3*3)+(2*9)+(1*9)=126
126 % 10 = 6
So 81423-99-6 is a valid CAS Registry Number.

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