1-Butanesulfonic acid, 1,1,2,2,3,3,4,4,4-nonafluoro-,
(1Z)-1,3-butadienyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 404934-00-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,4,9,3 and 4 respectively; the second part has 2 digits, 0 and 0 respectively. Calculate Digit Verification of CAS Registry Number 404934-00: (8*4)+(7*0)+(6*4)+(5*9)+(4*3)+(3*4)+(2*0)+(1*0)=125 125 % 10 = 5 So 404934-00-5 is a valid CAS Registry Number.