(1R,2R,4aS,8aR)-2-Methyl-8-oxo-1,2,4a,5,6,7,8,8a-octahydro-naphthalene-1-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 90344-11-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,4 and 4 respectively; the second part has 2 digits, 1 and 1 respectively. Calculate Digit Verification of CAS Registry Number 90344-11: (7*9)+(6*0)+(5*3)+(4*4)+(3*4)+(2*1)+(1*1)=109 109 % 10 = 9 So 90344-11-9 is a valid CAS Registry Number.