1,20-bis-(2-ethyl-[1,3]dioxolan-2-yl)-3,3,7,14,18,18-hexamethyl-eicosa-5t,7t,9t,11t,13t,15t-hexaene-4,17-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 121707-29-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,0 and 7 respectively; the second part has 2 digits, 2 and 9 respectively. Calculate Digit Verification of CAS Registry Number 121707-29: (8*1)+(7*2)+(6*1)+(5*7)+(4*0)+(3*7)+(2*2)+(1*9)=97 97 % 10 = 7 So 121707-29-7 is a valid CAS Registry Number.