o-sec-Butylphenol

o-*sec*-Butylphenol
Names
	Preferred IUPAC name 2-(Butan-2-yl)phenol
	Other names 2-(1-Methylpropyl)phenol; 2-(sec-Butyl)phenol; 2-sec-Butylphenol; 2-(2-Butyl)phenol
Identifiers
CAS Number	89-72-5 ;
3D model (JSmol)	Interactive image;
ChemSpider	6718;
ECHA InfoCard	100.001.758
PubChem CID	6984;
RTECS number	SJ8920000;
UNII	025P24OTM5 ;
UN number	3145
CompTox Dashboard (EPA)	DTXSID2022331 ;
	InChI InChI=1S/C10H14O/c1-3-8(2)9-6-4-5-7-10(9)11/h4-8,11H,3H2,1-2H3 Key: NGFPWHGISWUQOI-UHFFFAOYSA-N; InChI=1/C10H14O/c1-3-8(2)9-6-4-5-7-10(9)11/h4-8,11H,3H2,1-2H3 Key: NGFPWHGISWUQOI-UHFFFAOYAN;
	SMILES CCC(C)C1=CC=CC=C1O;
Properties
Chemical formula	C10H14O
Molar mass	150.221 g·mol−1
Appearance	Colorless to amber-colored liquid or solid
Density	0.97724 g/cm3 (20 °C)
Melting point	16 °C; 61 °F; 289 K
Boiling point	230 °C (446 °F; 503 K)
Vapor pressure	4.74 Pa (25 °C)
Refractive index (nD)	1.5228 (20 °C)
Hazards
Flash point	107 °C; 225 °F; 380 K
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	>290 ppm/4 hours (inhalation, rat); 63 mg/kg (intraperitoneal, mouse); 60 mg/kg (intravenous, mouse); 600 mg/kg (oral, guinea pig); 320 mg/kg (oral, rat); 600 mg/kg (skin, guinea pig); 5560 mg/kg (skin, rabbit)
	NIOSH (US health exposure limits):
REL (Recommended)	5 ppm (30 mg/m3) [skin]
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

o-sec-Butylphenol is an industrial chemical used in dyeing and as a chemical intermediate. It is synthesized from phenol and 1-butene in an ortho-alkylation reaction. It is corrosive to the eyes, skin, and gastrointestinal tract.