Isopropyl mercaptan

Isopropyl mercaptan
Names
	Other names 2-Propanethiol; Propane-2-thiol; 2-propanthiol; 2-propane thiol; Isopropyl mercaptan; Isopropanethiol; Isopropylthiol; 2-Mercaptopropane; 2-Propylmercaptan; 1-Methylethanethiol;
Identifiers
CAS Number	75-33-2;
3D model (JSmol)	Interactive image;
Beilstein Reference	605260
ChEBI	CHEBI:8474;
ChEMBL	ChEMBL1897156;
ChemSpider	6124;
ECHA InfoCard	100.000.784
EC Number	200-861-4;
KEGG	C08391;
PubChem CID	6364;
UNII	E52LR62ETC;
UN number	2402
CompTox Dashboard (EPA)	DTXSID1025481 ;
	InChI InChI=1S/C3H8S/c1-3(2)4/h3-4H,1-2H3 Key: KJRCEJOSASVSRA-UHFFFAOYSA-N;
	SMILES CC(C)S;
Properties
Chemical formula	C3H8S
Molar mass	76.16 g·mol−1
Density	0.8143
Melting point	−130.7 °C (−203.3 °F; 142.5 K)
Boiling point	52.5 °C (126.5 °F; 325.6 K)
Solubility in water	4835 g/L
Vapor pressure	277.3 mm Hg
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H302, H315, H319, H331
Precautionary statements	P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P316, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, P501
Related compounds
Related compounds	Propanethiol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Isopropyl mercaptan is a thiol with the formula C₃H₈S. It is a water-white liquid with an extremely pungent odor resembling skunk spray or rotten eggs. The pungent smell allows it to be used as an odorizer. The FDA has approved it for use as a food additive for its flavor. Another use is as a rubber additive.