1,13-Dioxa-4,7,10,16,19,22-hexaazacyclotetracosane-6,20-dione,
4,10,16,22-tetrakis[(4-methylphenyl)sulfonyl]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 65042-26-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,0,4 and 2 respectively; the second part has 2 digits, 2 and 6 respectively. Calculate Digit Verification of CAS Registry Number 65042-26: (7*6)+(6*5)+(5*0)+(4*4)+(3*2)+(2*2)+(1*6)=104 104 % 10 = 4 So 65042-26-4 is a valid CAS Registry Number.