# NIOSH Pocket Guide to Chemical Hazards
n-Valeraldehyde | CAS 110-62-3
CH3(CH2)3CHO | RTECS YV3600000
Synonyms & Trade Names Amyl aldehyde, Pentanal, Valeral, Valeraldehyde, Valeric aldehyde | DOT ID & Guide 2058 129
Exposure Limits | NIOSH REL: TWA 50 ppm (175 mg/m3) See Appendix C (Aldehydes)
OSHA PEL†: none
IDLH N.D. | Conversion 1 ppm = 3.53 mg/m3
Physical Description Colorless liquid with a strong, acrid, pungent odor.
MW: 86.2 | BP: 217°F | FRZ: -133°F | Sol: Slight
VP: 26 mmHg | IP: 9.82 eV |  | Sp.Gr: 0.81
Fl.P: 54°F | UEL: ? | LEL: ? |
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
Incompatibilities & Reactivities None reported
Measurement Methods NIOSH 2536; OSHA 85
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) 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, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, nose, throat
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION