Organic Chemistry - Organic Chemistry Textbook
Organic Chemistry (Jonathan Clayden, Nick Greeves, Stuart Warren & Peter Wothers)
Organic Name Reactions By Merck Index
Ayurvedic Pharmacop
The below link has the following Books
API-Vol-1e-Book
API-Vol-2e-Book
API-Vol-3e-Book
API-Vol-4e-Book
API-Vol-5e-Book