The chemical compound "(3R,5S,8R,9S,10S,13R,14S,17R)-3-bromo-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene" is a complex, chiral molecule with a unique structure. It features a cyclopenta[a]phenanthrene core, which is a type of polycyclic aromatic hydrocarbon. The compound is characterized by its 3-bromo substitution, indicating the presence of a bromine atom at the 3-position. Additionally, it has two methyl groups at the 10 and 13 positions, contributing to its stereochemistry. The 17-position is substituted with an (R)-6-methylheptan-2-yl group, which is a branched alkyl chain. The compound's stereochemistry is defined by the presence of eight chiral centers, each with a specific configuration (R or S), as indicated by the prefixes before the compound's name. This detailed structure gives the molecule its unique properties and potential applications in various fields, such as pharmaceuticals or materials science.
The CAS Registry Mumber 2309-03-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,0 and 9 respectively; the second part has 2 digits, 0 and 3 respectively. Calculate Digit Verification of CAS Registry Number 2309-03: (6*2)+(5*3)+(4*0)+(3*9)+(2*0)+(1*3)=57 57 % 10 = 7 So 2309-03-7 is a valid CAS Registry Number.