4-(5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-heptadecafluorododecyloxy)benzoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 142894-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,8,9 and 4 respectively; the second part has 2 digits, 8 and 7 respectively. Calculate Digit Verification of CAS Registry Number 142894-87: (8*1)+(7*4)+(6*2)+(5*8)+(4*9)+(3*4)+(2*8)+(1*7)=159 159 % 10 = 9 So 142894-87-9 is a valid CAS Registry Number.