(S)-3a-Ethyl-2-hydroxy-2,3,3a,4,6,11,12,12b-octahydro-1H-6,12a-diaza-indeno[7,1-cd]fluorene-5-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 63490-95-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,4,9 and 0 respectively; the second part has 2 digits, 9 and 5 respectively. Calculate Digit Verification of CAS Registry Number 63490-95: (7*6)+(6*3)+(5*4)+(4*9)+(3*0)+(2*9)+(1*5)=139 139 % 10 = 9 So 63490-95-9 is a valid CAS Registry Number.