(2aS,3R,6R,8aR,8bS)-6-Hydroxymethyl-3,6-dimethyl-2a,3,4,6,7,8,8a,8b-octahydro-naphtho[1,8-bc]furan-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 331661-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,6,6 and 1 respectively; the second part has 2 digits, 8 and 3 respectively. Calculate Digit Verification of CAS Registry Number 331661-83: (8*3)+(7*3)+(6*1)+(5*6)+(4*6)+(3*1)+(2*8)+(1*3)=127 127 % 10 = 7 So 331661-83-7 is a valid CAS Registry Number.