Aromatic compounds can be derived as cyclic compounds with alternating double and single bonds in their ring structure. Aromatic compounds consist of features like they contain at least one planar carbon ring and possess alternating double and single bonds in the carbon ring.

Androsta is a compound that refers to a variety of steroids like 

1.Androsta-4. 6-dien-3-one

2.Androsta-1,4-diene-3,17-dione

3.Andrsta 1,4,6 Triene 3,17 Dione

Pyridine is a heterocyclic organic compound. It is used to dissolve other substances and to make different types of products such as medicines, vitamins, food flavorings, dyes, paints, rubber products, insecticides, herbicides, and adhesives.

 Abiraterone  Standard

Abiraterone Standard

CAS Number
154229-19-3