1,2,3,9,10,11-hexahydro-2-10-dimethyl-1,9-/-1,11-dioxo-6,14-diphenyl-s-indaceno[1,2,3-cd:5,6,7-c'd']diphenalene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 1181844-99-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,1,8,4 and 4 respectively; the second part has 2 digits, 9 and 9 respectively. Calculate Digit Verification of CAS Registry Number 1181844-99: (9*1)+(8*1)+(7*8)+(6*1)+(5*8)+(4*4)+(3*4)+(2*9)+(1*9)=174 174 % 10 = 4 So 1181844-99-4 is a valid CAS Registry Number.