The Merck Index is an encyclopedia of chemicals, drugs and biologicals. Each entry is a concise description of a single substance or a small group of closely related compounds.
Contains frequently used data in science. Sections include basic constants, units conversion factors and mathematical tables, chemical and physics terminology, organic and inorganic compounds, biochemistry, analytical chemistry, properties of atoms, particles, solids, fluids, polymers, and sections on geophysics, astronomy, and laboratory safety.
PDR contains full FDA-approved drug label information, including warnings and precautions, drug interactions, and hundreds of full-color pill images. Every label in PDR includes information on dosages, side effects, and safety information, such as contraindications, pregnancy ratings, and interactions with other drugs, food, or alcohol. Data on clinical trials is also included.
Access to encyclopedias and specialized reference sources for multidisciplinary research. Titles can be searched alone, by subject, or all titles can be searched together.
Quick reference answers from more over 2 million entries in more than 242 dictionaries and reference titles on subjects such as language, science, medicine, humanities, social science and business, plus the Oxford Essential Quotations and selected titles from the Oxford Companion series.
Merck Index
by 
CRC Handbook of Chemistry and Physics, 92nd ed.
by 
Physicians' Desk Reference: PDR
by 
ACS Style Guide
by