2-[1,2,3,3,4,4,5,5,6,6,7,7,7-Tridecafluoro-hept-(E)-ylidene]-cyclohexanone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 51089-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,0,8 and 9 respectively; the second part has 2 digits, 0 and 4 respectively. Calculate Digit Verification of CAS Registry Number 51089-04: (7*5)+(6*1)+(5*0)+(4*8)+(3*9)+(2*0)+(1*4)=104 104 % 10 = 4 So 51089-04-4 is a valid CAS Registry Number.