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7ξ-oxo-1,4,7ξ-triphenyl-7λ5-phospha-bicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylic acid dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

18005-73-7

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18005-73-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18005-73-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,0,0 and 5 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18005-73:
(7*1)+(6*8)+(5*0)+(4*0)+(3*5)+(2*7)+(1*3)=87
87 % 10 = 7
So 18005-73-7 is a valid CAS Registry Number.

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