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The conversion of a chemical from one form to another.


A chemical produced when a substance is metabolized by a biological organism.


A commonly used dose that stands for mg of a substance per kg of body weight.

Microgram (mcg)

A commonly used unit of weight consisting of one millionth (1 x 10-6) of a gram.

Milligram (mg)

The most commonly used unit of measure in medicine and toxicity consisting of one thousandth of a gram (1x10-3 g).


A Material Safety Data Sheet (MSDS) is a fact sheet prepared by manufacturers for all products that contain a chemical. MSDS's include brand-specific information such as physical data (solid, liquid, color, melting point, flash point, etc.), health effects, first aid, reactivity, storage, handling, disposal, personal protection and spill/leak procedures.  It is important to note that manufacturers are currently updating Material Safety Data Sheets (MSDS) for their products to the new format of Safety Data Sheets (SDS) as required by the U.S. Occupational Safety & Health Administration (OSHA). Products and their safety data sheets in this database will be updated when new SDS are received from manufacturers.


Indicates country where product is sold.

MSDS or SDS Date

Date that Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) was issued by manufacturer of product.