2,6,13,17-Nonadecatetraene,
1-bromo-3,8,8,14,18-pentamethyl-11-methylene-, (2Z,6E,13E)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 916045-41-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,6,0,4 and 5 respectively; the second part has 2 digits, 4 and 1 respectively. Calculate Digit Verification of CAS Registry Number 916045-41: (8*9)+(7*1)+(6*6)+(5*0)+(4*4)+(3*5)+(2*4)+(1*1)=155 155 % 10 = 5 So 916045-41-5 is a valid CAS Registry Number.