2,4,9-triphenyl-3a,4,9,9a-tetrahydro-9,4-oxaethano-benzo[f]isoindole-1,3,11-trione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 27593-99-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,5,9 and 3 respectively; the second part has 2 digits, 9 and 9 respectively. Calculate Digit Verification of CAS Registry Number 27593-99: (7*2)+(6*7)+(5*5)+(4*9)+(3*3)+(2*9)+(1*9)=153 153 % 10 = 3 So 27593-99-3 is a valid CAS Registry Number.