(6aS,9R,9aS)-8-Acetyl-7,7-dimethyl-7,8,9,9a-tetrahydro-6H,6aH-isoindolo[4,5,6-cd]indole-2,9-dicarboxylic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 92420-77-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,4,2 and 0 respectively; the second part has 2 digits, 7 and 7 respectively. Calculate Digit Verification of CAS Registry Number 92420-77: (7*9)+(6*2)+(5*4)+(4*2)+(3*0)+(2*7)+(1*7)=124 124 % 10 = 4 So 92420-77-4 is a valid CAS Registry Number.
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