National Institute of Standards and Technology

NIST Chemistry WebBook, SRD 69

Search for Species Data by CAS Registry Number

Please follow the steps below to conduct your search:

Enter a registry number (e.g., 74-82-8):
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

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