BP305T · Semester 3 · B.Pharm
Unit II — Optical Isomerism
Heterocyclic Compounds and Stereochemistry
This study page introduces Optical Isomerism in Heterocyclic Compounds and Stereochemistry (BP305T), B.Pharm Semester 3. Read the selected definitions and short notes below, then download the full unit PDF.
Topics in this unit
- Optical Isomerism I: Chirality, Enantiomers, Diastereomers, Meso Compounds
- Optical Isomerism II: Configuration (D/L, R/S), Medicinal Importance, Resolution
Definitions and short notes
Selected extracts from this unit’s notes. Download the full PDF below for the remaining topics and examples.
Stereoisomerism
Isomerism in which compounds have the SAME molecular formula and SAME order of atoms, but DIFFERENT arrangement of atoms in space (3D). Example: the two mirror-image forms of lactic acid.
Unit PDF · page 2
Optical activity
The ability of a compound to rotate the plane of plane-polarised light. Measured with a polarimeter; reported as (+) dextrorotatory (clockwise) or (−) laevorotatory (anticlockwise).
Unit PDF · page 2
Download notes
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For education and exam preparation only, not medical advice or current regulatory guidance.