3,5-dimethyl-4H-cyclopenta[def]phenanthrene is a complex organic compound belonging to the class of polycyclic aromatic hydrocarbons (PAHs). It features a unique structure with a cyclopenta ring fused to a phenanthrene core, resulting in a total of five fused rings. The compound is characterized by the presence of two methyl groups (-CH3) at the 3rd and 5th positions, which contribute to its distinct chemical properties. This PAH is known for its potential environmental and health impacts, as many PAHs are considered carcinogenic and can be released into the environment through incomplete combustion of organic materials. The compound's molecular formula is C21H16, and it has a molecular weight of 268.35 g/mol. Due to its complex structure and potential health risks, research on 3,5-dimethyl-4H-cyclopenta[def]phenanthrene often focuses on its environmental fate, exposure pathways, and mitigation strategies.
The CAS Registry Mumber 7343-11-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,4 and 3 respectively; the second part has 2 digits, 1 and 1 respectively. Calculate Digit Verification of CAS Registry Number 7343-11: (6*7)+(5*3)+(4*4)+(3*3)+(2*1)+(1*1)=85 85 % 10 = 5 So 7343-11-5 is a valid CAS Registry Number.