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heptane 142-82-5

Source
pubchem
Confidence
medium
Source URL
https://pubchem.ncbi.nlm.nih.gov/compound/8900
PubChem CID
8900
Fetched (UTC)
2026-06-20T06:19:45.697820+00:00
Updated (UTC)
2026-06-20T06:19:45.697820+00:00
TTL
180 days
Content hash
03652bf0d69cc409
Verified by
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View raw JSON

Synonyms

HEPTANE n-Heptane 142-82-5 Heptan Heptyl hydride Dipropyl methane Dipropylmethane Gettysolve-C Skellysolve C Heptanen Eptani DTXSID6024127 456148SDMJ NSC-62784 DTXCID004127 CHEBI:43098 normal-Heptane RefChem:6645 205-563-8 MFCD00009544

Record content

These are the fields that get used when generating an SDS. Edit them via Recheck (PubChem) or Upload (your data) — direct editing is intentionally not supported; the audit trail is the cache row's data_source + updated_at.

GHS classification
Signal
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Pictograms
GHS02 GHS07 GHS08 GHS09
Classes
  • Flam. Liq. 2 (100%)
  • Asp. Tox. 1 (100%)
  • Skin Irrit. 2 (100%)
  • STOT SE 3 (97.6%)
  • Aquatic Acute 1 (95.4%)
  • Aquatic Chronic 1 (> 99.9%)
  • Flammable liquid - category 2
  • Aspiration hazard - category 1
  • Skin irritation - category 2
  • Specific target organ toxicity (single exposure) - category 3
  • Hazardous to the aquatic environment (chronic) - category 1
  • Hazardous to the aquatic environment (acute) - category 1
  • Flammable liquids - Category 2
  • Skin corrosion/irritation - Category 2
  • Serious eye damage/eye irritation - Category 2B
  • Specific target organ toxicity - Single exposure - Category 3 (Narcotic effects, Respiratory tract irritation)
  • Aspiration hazard - Category 1
  • Hazardous to the aquatic environment (Acute) - Category 1
  • Hazardous to the aquatic environment (Long-term) - Category 1
  • Serious eye damage/eye irritation - Category 2A-2B
  • Specific target organ toxicity - Single exposure - Category 3 (Respiratory tract irritation, Narcotic effects)
  • Specific target organ toxicity - Repeated exposure - Category 2 (liver)
  • Serious eye damage/eye irritation - Category 2
  • Specific target organ toxicity - Repeated exposure - Category 1 (nervous system)
  • Flammable agents - 3rd degree
  • Flam. Liq. 2
  • Asp. Tox. 1
  • STOT SE 3
  • Skin Irrit. 2
  • Aquatic Acute 1
  • Aquatic Chronic 1
H-statements
  • H225 Highly Flammable liquid and vapor
  • H304 May be fatal if swallowed and enters airways
  • H315 Causes skin irritation
  • H336 May cause drowsiness or dizziness
  • H400 Very toxic to aquatic life
  • H410 Very toxic to aquatic life with long lasting effects
  • H225 (100%): Highly Flammable liquid and vapor
  • H304 (100%): May be fatal if swallowed and enters airways
  • H315 (100%): Causes skin irritation
  • H336 (97.6%): May cause drowsiness or dizziness
  • H400 (95.4%): Very toxic to aquatic life
  • H410 (> 99.9%): Very toxic to aquatic life with long lasting effects
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation
  • H372 Causes damage to organs through prolonged or repeated exposure
  • H320 Causes eye irritation
  • H373 May causes damage to organs through prolonged or repeated exposure
Physical properties
appearance
N-heptane is a clear colorless liquids with a petroleum-like odor. Flash point 25 °F. Less dense than water and insoluble in water. Vapors heavier than air.
odour
Gasoline-like odor
boiling point
209.1 °F at 760 mmHg (USCG, 1999)
melting point
-131 °F (USCG, 1999)
flash point
25 °F (USCG, 1999)
water solubility
0.0003 % (NIOSH, 2024)
density
0.6838 at 68 °F (USCG, 1999) - Less dense than water; will float
vapour density
3.45 (Air = 1)
vapour pressure
37.49 mmHg at 70 °F (USCG, 1999)
log pow
log Kow = 4.66
autoignition temperature
433 °F (USCG, 1999)
Transport
un number
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un psn
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hazard class
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packing group
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Exposure limits
osha pel
Vacated 1989 OSHA PEL TWA 400 ppm (1600 mg/cu m); STEL 500 ppm (2000 mg/cu m) is still enforced in some states.
niosh rel
Recommended Exposure Limit: 15 Minute Ceiling Value: 440 ppm (1800 mg/cu m)
note
Auto-sourced from PubChem. NZ WES must be confirmed against MBIE Workplace Exposure Standards table before use.
First aid
inhalation
· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.
skin
Skin: SOAP WASH PROMPTLY - If this chemical contacts the skin, promptly wash the contaminated skin with soap and water. If this chemical penetrates the clothing, promptly remove the clothing and wash the skin with soap and water. Get medical attention promptly.
eye
Eye: IRRIGATE IMMEDIATELY - If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
ingestion
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