(2E,5E,11E,14E,16E)-17-Phenyl-heptadeca-2,5,11,14,16-pentaene-7,9-diynoic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 82706-77-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,7,0 and 6 respectively; the second part has 2 digits, 7 and 7 respectively. Calculate Digit Verification of CAS Registry Number 82706-77: (7*8)+(6*2)+(5*7)+(4*0)+(3*6)+(2*7)+(1*7)=142 142 % 10 = 2 So 82706-77-2 is a valid CAS Registry Number.