National Institute of Standards and Technology

NIST Chemistry WebBook, SRD 69

Search for Species Data by Chemical Name

Please follow the steps below to conduct your search (Help):

Enter a chemical species name or pattern: (e.g., methane, *2-hexene)
Select the desired units for thermodynamic data:
SI calorie-based

Select the desired type(s) of data:

Thermodynamic Data	Other Data
Gas phase	IR spectrum
Condensed phase	THz IR spectrum
Phase change	Mass spectrum
Reaction	UV/Vis spectrum
Ion energetics	Gas Chromatography
Ion cluster	Vibrational & electronic energy levels
	Constants of diatomic molecules
	Henry's Law

Press here to search:

Name Search Help (Back to search)

Rules for names and patterns

You may enter the full name or a pattern.
Information on patterns is provided in the section below.
Searches are not case sensitive.
Blank space is ignored in search strings.
Warning: The database currently used for name searches contains only a subset of commonly used names. If a search fails, you may be able to find the desired compound through a formula search.

Rules for patterns

Patterns are strings containing one or more asterisk (*) characters.
Asterisks will match zero or more unspecified characters.

Examples of patterns:

Pattern	Search Specification
*heptanone	Species with names that end in “heptanone”.
heptanoic acid	Species with names that contain “heptanoic acid” anywhere in their name.
heptanoic acid*	Species with names that start with “heptanoic acid”.

Warning: When using pattens it is important to remember that the database for name searches is incomplete. Pattern searches may miss species in the database because the name required to match the search may not be included in the list of names for the species.