Trifluoro-methanesulfonic acid 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-icosafluoro-undecyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 17351-93-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,3,5 and 1 respectively; the second part has 2 digits, 9 and 3 respectively. Calculate Digit Verification of CAS Registry Number 17351-93: (7*1)+(6*7)+(5*3)+(4*5)+(3*1)+(2*9)+(1*3)=108 108 % 10 = 8 So 17351-93-8 is a valid CAS Registry Number.