2-phenyl-5a-methyl-6,12-oxa-3a,4,5,5a,6,11,12,13-decahydro-1H-anthra<2,3-f>isoindole-1,3(2H)-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 82167-65-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,1,6 and 7 respectively; the second part has 2 digits, 6 and 5 respectively. Calculate Digit Verification of CAS Registry Number 82167-65: (7*8)+(6*2)+(5*1)+(4*6)+(3*7)+(2*6)+(1*5)=135 135 % 10 = 5 So 82167-65-5 is a valid CAS Registry Number.