5,7,12,14-Pentacenetetrone, 2,3,9,10-tetraethyl-1,4,8,11-tetraphenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 62620-06-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,6,2 and 0 respectively; the second part has 2 digits, 0 and 6 respectively. Calculate Digit Verification of CAS Registry Number 62620-06: (7*6)+(6*2)+(5*6)+(4*2)+(3*0)+(2*0)+(1*6)=98 98 % 10 = 8 So 62620-06-8 is a valid CAS Registry Number.