Benzamide, N,N'-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho(2,3-A:2',3'-I)carbazole-6,9-diyl)bis- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 61356-49-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,3,5 and 6 respectively; the second part has 2 digits, 4 and 9 respectively. Calculate Digit Verification of CAS Registry Number 61356-49: (7*6)+(6*1)+(5*3)+(4*5)+(3*6)+(2*4)+(1*9)=118 118 % 10 = 8 So 61356-49-8 is a valid CAS Registry Number.