2,5,8-Tri-tert-butyl-2,3,4,5,6,7,8,9-octahydro-2H-benzo<1,2-c:3,4-c':5,6-c>tripyrrol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 118644-11-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,6,4 and 4 respectively; the second part has 2 digits, 1 and 1 respectively. Calculate Digit Verification of CAS Registry Number 118644-11: (8*1)+(7*1)+(6*8)+(5*6)+(4*4)+(3*4)+(2*1)+(1*1)=124 124 % 10 = 4 So 118644-11-4 is a valid CAS Registry Number.