Tricyclo[10.2.2.25,8]octadeca-1(15),5(18),6,8(17),12(16),13-hexaene-2,2,11,11-tetracarbonitrile is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 65649-18-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,6,4 and 9 respectively; the second part has 2 digits, 1 and 8 respectively. Calculate Digit Verification of CAS Registry Number 65649-18: (7*6)+(6*5)+(5*6)+(4*4)+(3*9)+(2*1)+(1*8)=155 155 % 10 = 5 So 65649-18-5 is a valid CAS Registry Number.