Pentanal

Not to be confused with Pantanal.
Pentanal[1][2]
Structural formula of pentanal
Ball-and-stick model of the pentanal molecule
Names
Preferred IUPAC name
Pentanal
Other names
Pentanaldehyde
Valeraldehyde
Valeric aldehyde
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
DrugBank
ECHA InfoCard 100.003.442 Edit this at Wikidata
UNII
UN number 2058
  • InChI=1S/C5H10O/c1-2-3-4-5-6/h5H,2-4H2,1H3 ☒N
    Key: HGBOYTHUEUWSSQ-UHFFFAOYSA-N ☒N
  • InChI=1/C5H10O/c1-2-3-4-5-6/h5H,2-4H2,1H3
    Key: HGBOYTHUEUWSSQ-UHFFFAOYAJ
  • O=CCCCC
Properties
C5H10O
Molar mass 86.134 g·mol−1
Appearance Clear liquid
Odor Strong, acrid, pungent
Density 0.8095 at 20 °C
Melting point −60 °C (−76 °F; 213 K)
Boiling point 102 to 103 °C (216 to 217 °F; 375 to 376 K)
14 g/L (20 °C)
Vapor pressure 0.35 kPa (20 °C)[3]
Viscosity 0.6 mPa·s (20 °C)
Hazards
GHS labelling:
GHS02: FlammableGHS07: Exclamation mark
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
3
0
Flash point 12 °C (54 °F; 285 K)[3]
220 °C (428 °F; 493 K)
Lethal dose or concentration (LD, LC):
3200 mg/kg (oral, rat)
4860 mg/kg (dermal, rabbit)
14.3 ppm (rat, 4h)
NIOSH (US health exposure limits):
PEL (Permissible)
 none[3]
REL (Recommended)
 TWA 50 ppm (175 mg/m3)[3]
IDLH (Immediate danger)
 N.D.[3]
Safety data sheet (SDS) Fisher Scientific
Related compounds
Related aldehydes
 Butyraldehyde

Hexanal

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Pentanal (also called valeraldehyde) is the organic compound with molecular formula C4H9CHO. Classified as an alkyl aldehyde, it is a colorless volatile liquid. Its odor is described as fermented, bready, fruity, nutty, berry.[4]

  1. ^ Merck Index, 11th Edition, 9813.
  2. ^ n-Valeraldehyde at chemicalland21.com
  3. ^ a b c d e NIOSH Pocket Guide to Chemical Hazards. "#0652". National Institute for Occupational Safety and Health (NIOSH).
  4. ^ "Valeraldehyde, 110-62-3".