1,4,8,11-Tetraamino-1,11-diphenyl-2,3,9,10-tetraaza-undeca-1,3,8,10-tetraen is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 14157-57-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,1,5 and 7 respectively; the second part has 2 digits, 5 and 7 respectively. Calculate Digit Verification of CAS Registry Number 14157-57: (7*1)+(6*4)+(5*1)+(4*5)+(3*7)+(2*5)+(1*7)=94 94 % 10 = 4 So 14157-57-4 is a valid CAS Registry Number.