Solvents and alcohols

Hexane vs heptane

Hexane (C6H14, CAS 110-54-3) and heptane (C7H16, CAS 142-82-5) are both listed under paraffins, waxes and cycloalkanes.

Hexane has a molar mass of 86.18 g/mol, heptane 100.21 g/mol.

Measured boiling points are 68.7 °C for hexane and 98.4 °C for heptane.

Both carry the GHS signal word Danger.

On CompoundList, 489 suppliers list hexane and 338 suppliers list heptane.

Data last updated 7 October 2026

Hexane and heptane compared side by side
Identity
	Hexane	Heptane
Name in our database	Hexane	Heptane
CAS number	110-54-3	142-82-5
Molecular formula	C₆H₁₄	C₇H₁₆
Molar mass	86.18 g/mol	100.21 g/mol
IUPAC name	hexane	heptane
EC number	203-777-6	205-563-8
Physical properties
Appearance	Liquid	Colorless liquid
Melting point	-95.3 °C	-90.5 °C
Boiling point	68.7 °C	98.4 °C
Density	0.6606 g/cm³ at 25 °C	0.6795 g/cm³ at 25 °C
Flash point	-22 °C	-3.9 °C
Solubility	In water, 9.5 mg/L at 25 °C	In water, 3.40 mg/L at 25 °C
LogP (octanol/water)Computed from the structure	2.59	2.98
Safety (GHS)
Signal word	Danger	Danger
Pictograms
Hazard statements	H225 Highly flammable liquid and vapour. H304 May be fatal if swallowed and enters airways. H315 Causes skin irritation. H336 May cause drowsiness or dizziness. H361f Suspected of damaging fertility. and 2 more	H225 Highly flammable liquid and vapour. 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. and 1 more
UN number	UN 1208	UN 1206
Uses and classification
Uses and functions	Thickeners Aetiopathogenetic role Neurotoxin Non-polar solvent Poison Solvent	Eukaryotic metabolite Metabolite Non-polar solvent Plant metabolite Solvent Cleaning agent
Category	Cosmetic ingredients › Thickeners and film formers	Laboratory reagents and standards › Chromatography and spectroscopy reagents
HS code	290110Saturated	290110Saturated
Market on CompoundList
Suppliers	489 suppliers	338 suppliers
Supplier countries	46 countries, most in United States, India, China	40 countries, most in United States, China, India
Price rangeOnly prices set by suppliers who manage their own profile	Price on request	Price on request

Measured and computed values as shown on each chemical page, plus live listings on CompoundList. Details may have changed, please confirm them with the supplier. Safety data is a summary, not an SDS.

Hexane

Heptane

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