O-sec-Butylphenol

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.^[4] It is corrosive to the eyes, skin, and gastrointestinal tract.^[5]

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 Y
3D model (JSmol)	Interactive image
ChemSpider	6718
ECHA InfoCard	100.001.758
PubChem CID	6984
RTECS number	SJ8920000
UNII	025P24OTM5 Y
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) [1]
Melting point	16 °C; 61 °F; 289 K[2]
Boiling point	230 °C (446 °F; 503 K)[1]
Vapor pressure	4.74 Pa (25 °C) [1]
Refractive index (nD)	1.5228 (20 °C) [1]
Hazards
Flash point	107 °C; 225 °F; 380 K[2]
Lethal dose or concentration (LD, LC):
LD50 (median dose)	>290 ppm/4 hours (inhalation, rat)[3] 63 mg/kg (intraperitoneal, mouse)[3] 60 mg/kg (intravenous, mouse)[3] 600 mg/kg (oral, guinea pig)[3] 320 mg/kg (oral, rat)[3] 600 mg/kg (skin, guinea pig)[3] 5560 mg/kg (skin, rabbit)[3]
NIOSH (US health exposure limits):
REL (Recommended)	5 ppm (30 mg/m3) [skin][2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references