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cis-4a-(4-chlorophenyl)-1-methyl-1,2,3,4-tetrahydropyrimido<6,1-a>isoindol-9(4aH)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

109719-99-5

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109719-99-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109719-99-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,7,1 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 109719-99:
(8*1)+(7*0)+(6*9)+(5*7)+(4*1)+(3*9)+(2*9)+(1*9)=155
155 % 10 = 5
So 109719-99-5 is a valid CAS Registry Number.

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