(5aS,9aR,9bS)-9a-Hydroxy-5a-methyl-3-phenylsulfanyl-5,5a,8,9,9a,9b-hexahydro-4H,7H-naphtho[1,2-b]furan-2,6-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 82891-21-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,8,9 and 1 respectively; the second part has 2 digits, 2 and 1 respectively. Calculate Digit Verification of CAS Registry Number 82891-21: (7*8)+(6*2)+(5*8)+(4*9)+(3*1)+(2*2)+(1*1)=152 152 % 10 = 2 So 82891-21-2 is a valid CAS Registry Number.