[(2S,12bS)-3-Eth-(Z)-ylidene-1,2,3,4,6,7,12,12b-octahydro-indolo[2,3-a]quinolizin-2-yl]-acetic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 55857-16-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,5 and 7 respectively; the second part has 2 digits, 1 and 6 respectively. Calculate Digit Verification of CAS Registry Number 55857-16: (7*5)+(6*5)+(5*8)+(4*5)+(3*7)+(2*1)+(1*6)=154 154 % 10 = 4 So 55857-16-4 is a valid CAS Registry Number.