The chemical compound "(3aS)-1,2,3,4,5,6,7,8,9,9aα-Decahydro-1,1,7-trimethyl-3aβ,7β-methano-3aH-cyclopentacyclooctene" is a complex, cyclic hydrocarbon with a unique molecular structure. It consists of a decalin (decahydro) framework, which is a saturated bicyclic hydrocarbon with ten carbon atoms. The compound features a cyclopentacyclooctene ring system, indicating the presence of a cyclopentane ring fused to a cyclooctene ring. The stereochemistry is specified by the "3aS" notation, which indicates the configuration of the 3a position in the molecule. It has three methyl groups attached to the molecule, contributing to its structural complexity. (3aS)-1,2,3,4,5,6,7,8,9,9aα-Decahydro-1,1,7-trimethyl-3aβ,7β-methano-3aH-cyclopentacyclooctene is characterized by its specific arrangement of carbon atoms and the presence of a bridge (methano) between the cyclopentane and cyclooctene rings, which influences its physical and chemical properties.
The CAS Registry Mumber 469-91-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,6 and 9 respectively; the second part has 2 digits, 9 and 1 respectively. Calculate Digit Verification of CAS Registry Number 469-91: (5*4)+(4*6)+(3*9)+(2*9)+(1*1)=90 90 % 10 = 0 So 469-91-0 is a valid CAS Registry Number.