# NIOSH Pocket Guide to Chemical Hazards
o-sec-Butylphenol | CAS 89-72-5
CH3CH2CH(CH3)C6H4OH | RTECS SJ8920000
Synonyms & Trade Names 2-sec-Butylphenol, 2-(1-Methylpropyl)phenol | DOT ID & Guide 2228 153 (liquid) 2229 153 (solid)
Exposure Limits | NIOSH REL: TWA 5 ppm (30 mg/m3) [skin]
OSHA PEL†: none
IDLH N.D. | Conversion 1 ppm = 6.14 mg/m3
Physical Description Colorless liquid or solid (below 61°F).
MW: 150.2 | BP: 227°F | FRZ: 61°F | Sol: Insoluble
VP: Low | IP: ? |  | Sp.Gr: 0.89
Fl.P: 225°F | UEL: ? | LEL: ? |
Class IIB Combustible Liquid Combustible Solid
Incompatibilities & Reactivities None reported
Measurement Methods None available
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation Provide: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap flush immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations To be added later
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system; skin burns
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION