17-(4-bromophenyl)-8,16-dithia-6,14,17-triazatetracyclo[7.7.1.0~2,7~.0~10,15~]heptadeca-2,4,6,10,12,14-hexaene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 72397-26-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,3,9 and 7 respectively; the second part has 2 digits, 2 and 6 respectively. Calculate Digit Verification of CAS Registry Number 72397-26: (7*7)+(6*2)+(5*3)+(4*9)+(3*7)+(2*2)+(1*6)=143 143 % 10 = 3 So 72397-26-3 is a valid CAS Registry Number.