Carbonic acid (S)-2-((2R,4aS)-4a,8-dimethyl-7-oxo-1,2,3,4,4a,5,6,7-octahydro-naphthalen-2-yl)-propyl ester 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 18254-28-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,2,5 and 4 respectively; the second part has 2 digits, 2 and 8 respectively. Calculate Digit Verification of CAS Registry Number 18254-28: (7*1)+(6*8)+(5*2)+(4*5)+(3*4)+(2*2)+(1*8)=109 109 % 10 = 9 So 18254-28-9 is a valid CAS Registry Number.