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1-phenyl-3a,4,7,7a-tetrahydro-1H-4,7-methano-[1,2,3]triazolo[4,5-d]pyridazine-5,6-dicarboxylic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

109671-13-8

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109671-13-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109671-13-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,6,7 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109671-13:
(8*1)+(7*0)+(6*9)+(5*6)+(4*7)+(3*1)+(2*1)+(1*3)=128
128 % 10 = 8
So 109671-13-8 is a valid CAS Registry Number.

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