The chemical compound "(1S,4R,4aR,6S,8aR)-4-(tert-Butyl-dimethyl-silanyloxymethyl)-8a,9,9-trimethyl-octahydro-1,6-methano-naphthalen-1-ol" is a complex, chiral molecule with a unique structure. It features a naphthalene core, which is a type of polycyclic aromatic hydrocarbon, with an octahydro substitution that refers to the presence of eight hydrogen atoms in a saturated ring structure. The compound is further characterized by the presence of a tert-butyl-dimethyl-silanyloxymethyl group attached to the 4-position, which introduces a silicon-based moiety that can influence the compound's reactivity and stability. The 8a,9,9-trimethyl groups indicate the presence of three methyl groups at these specific positions, contributing to the molecule's steric and electronic properties. (1S,4R,4aR,6S,8aR)-4-(tert-Butyl-dimethyl-silanyloxymethyl)-8a,9,9-trimethyl-octahydro-1,6-methano-naphthalen-1-ol is an example of a highly substituted and stereospecific organic molecule, which may have applications in various fields such as pharmaceuticals, materials science, or as a synthetic intermediate in organic chemistry.
The CAS Registry Mumber 91997-91-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,9 and 7 respectively; the second part has 2 digits, 9 and 1 respectively. Calculate Digit Verification of CAS Registry Number 91997-91: (7*9)+(6*1)+(5*9)+(4*9)+(3*7)+(2*9)+(1*1)=190 190 % 10 = 0 So 91997-91-0 is a valid CAS Registry Number.