Propargyl alcohol

Propargyl alcohol
Names
	Preferred IUPAC name Prop-2-yn-1-ol
	Other names propynol, 2-propynol, 2-propyn-1-ol, hydroxymethylacetylene.
Identifiers
CAS Number	107-19-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:28905 ;
ChEMBL	ChEMBL1563026;
ChemSpider	21106466 ;
ECHA InfoCard	100.003.157
EC Number	203-471-2;
KEGG	C05986 ;
PubChem CID	7859;
RTECS number	UK5075000;
UNII	E920VF499L ;
UN number	1986 2929
CompTox Dashboard (EPA)	DTXSID5021883 ;
	InChI InChI=1S/C3H4O/c1-2-3-4/h1,4H,3H2 Key: TVDSBUOJIPERQY-UHFFFAOYSA-N ; InChI=1/C3H4O/c1-2-3-4/h1,4H,3H2 Key: TVDSBUOJIPERQY-UHFFFAOYAE;
	SMILES C#CCO;
Properties
Chemical formula	C3H4O
Molar mass	56.064 g·mol−1
Appearance	Colorless to straw-colored liquid
Odor	geranium-like
Density	0.9715 g/cm3
Melting point	−51 to −48 °C (−60 to −54 °F; 222 to 225 K)
Boiling point	114 to 115 °C (237 to 239 °F; 387 to 388 K)
Solubility in water	miscible
Vapor pressure	12 mmHg (20 °C)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H226, H301, H310, H314, H330, H373, H411
Precautionary statements	P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P273, P280, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P311, P312, P321, P322, P330, P361, P363, P370+P378, P391, P403+P233, P403+P235, P405, P501
NFPA 704 (fire diamond)	3 3 3
Flash point	36 °C; 97 °F; 309 K (open cup)
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	TWA 1 ppm (2 mg/m3) [skin]
IDLH (Immediate danger)	N.D.
Safety data sheet (SDS)	External SDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Propargyl alcohol, or 2-propyn-1-ol, is an organic compound with the formula C₃H₄O. It is the simplest stable alcohol containing an alkyne functional group. Propargyl alcohol is a colorless viscous liquid that is miscible with water and most polar organic solvents.