(5aS,10bR,11aS)-10b-(1,1-Dimethyl-allyl)-2,3,6,10b,11,11a-hexahydro-5aH-pyrazino[1',2':1,5]pyrrolo[2,3-b]indole-1,4-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 191155-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,1,5 and 5 respectively; the second part has 2 digits, 4 and 0 respectively. Calculate Digit Verification of CAS Registry Number 191155-40: (8*1)+(7*9)+(6*1)+(5*1)+(4*5)+(3*5)+(2*4)+(1*0)=125 125 % 10 = 5 So 191155-40-5 is a valid CAS Registry Number.