1,2,3,4,4a,5,6,7,8,11,12,12b-Dodecahydrobenz[a]anthracene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 16434-57-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,4,3 and 4 respectively; the second part has 2 digits, 5 and 7 respectively. Calculate Digit Verification of CAS Registry Number 16434-57: (7*1)+(6*6)+(5*4)+(4*3)+(3*4)+(2*5)+(1*7)=104 104 % 10 = 4 So 16434-57-4 is a valid CAS Registry Number.