5,6a,7,8,9,11-hexahydro-6,11-methano[1,3]-dioxolo[4',5':4,5]benzo[1,2-e]benzo[b]azepine-8,9-diyl diacetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 21416-16-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,1 and 6 respectively; the second part has 2 digits, 1 and 6 respectively. Calculate Digit Verification of CAS Registry Number 21416-16: (7*2)+(6*1)+(5*4)+(4*1)+(3*6)+(2*1)+(1*6)=70 70 % 10 = 0 So 21416-16-0 is a valid CAS Registry Number.