9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,16-heptadecafluorohexadec-1-yne is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 1228259-74-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,2,5 and 9 respectively; the second part has 2 digits, 7 and 4 respectively. Calculate Digit Verification of CAS Registry Number 1228259-74: (9*1)+(8*2)+(7*2)+(6*8)+(5*2)+(4*5)+(3*9)+(2*7)+(1*4)=162 162 % 10 = 2 So 1228259-74-2 is a valid CAS Registry Number.