烷烃，C4-5

Description

Alkanes, C4-5 · CAS 68475-60-5 · C5H12. UNII 4FEX897A91. Boiling Point: 97 °F at 760 mmHg (NTP, 1992); Boiling Point: 36.06 °C; Boiling Point: 36.00 to 37.00 °C. @ 760.00 mm Hg.

Identification

CAS Registry Number	68475-60-5
PubChem CID	8003
Molecular formula	C5H12
IUPAC name	pentane
UNII (FDA)	4FEX897A91

Computed Descriptors

Molecular Weight	72.15
XLogP3	3.4
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	2
Exact Mass	72.093900383
Monoisotopic Mass	72.093900383
Topological Polar Surface Area	0
Heavy Atom Count	5
Formal Charge	0

Physical & Chemical Properties

Boiling Point	97 °F at 760 mmHg (NTP, 1992)
Boiling Point	36.06 °C
Boiling Point	36.00 to 37.00 °C. @ 760.00 mm Hg
Boiling Point	36 °C
Boiling Point	97 °F
Boiling Point	36.1 °C @760 [mm Hg]
Melting Point	-202 °F (NTP, 1992)
Melting Point	-129.67 °C
Melting Point	-129 °C
Melting Point	-202 °F

Physical description & handling notes

• N-pentane appears as a clear colorless liquid with a petroleum-like odor. Flash point -57 °F. Boiling point 97 °F. Less dense than water and insoluble in water. Hence floats on water. Vapors are heavier than air.
• Gas Vapor; Large Crystals; Liquid; Gas Vapor; Liquid
• Colorless liquid with a gasoline-like odor; Note: A gas above 97 degrees F. May be utilized as a fuel; [NIOSH] Clear colorless liquid; [Sigma-Aldrich MSDS]
• Liquid
• COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.
• Colorless liquid with a gasoline-like odor.

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Propellant; Emollient; Solvent
GHS notification summary	0.8% (11 / 1378)

GHS Hazard Classification

GHS notification summary	0.8% (11 / 1378)
Reported hazard statements	H225, H304, H336, H411, H224 (16.4%), H320, H335, H401

Documented Uses

• Used as a chemical raw material and in lighter fluids, blowtorch fuels, laboratory solvents, blowing agents for plastics, gasoline additives, and aerosol propellants; [HSDB] Used as foaming agent for expanded polystyrene (EPS) and polyurethane, process diluent/carrier for polymerizations, formulation solvent in adhesives, and for other minor uses (pharmaceuticals, degreasing agents, lubricants, stain removers, and cleaning agents); [ExPub: CPS&Q: RARs - Final Risk Assessment Report]
• Working with Glues and Adhesives [Category: Other]
• Plastic Composites Manufacturing [Category: Industry]
• Constituent in motor and aviation fuel; in solvent extraction processes, as a general laboratory solvent, and as a medium solvent for polymerization reactions; as raw material for production of olefins and other industrial chemicals like amyl chloride. Pentane is used in the manufacture of ice and low-temperature thermometers.
• Additive in automotive, aviation and farm fuels.
• For more Uses (Complete) data for n-Pentane (8 total), please visit the HSDB record page.

Synonyms

PENTANE; n-Pentane; 109-66-0; Pentan; Skellysolve A; Pentanen; Pentani; Amyl hydride; Tetrafume; Tetrakil; Tetraspot; DTXSID2025846; 4FEX897A91; NSC-72415; DTXCID705846; CHEBI:37830

Frequently Asked Questions

What are the CAS number and molecular formula of Alkanes, C4-5?

CAS 68475-60-5; molecular formula C5H12; molecular weight — g/mol.

What other names is Alkanes, C4-5 known by?

PENTANE, n-Pentane, 109-66-0, Pentan, Skellysolve A, Pentanen.

What is the regulatory status of Alkanes, C4-5?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Propellant; Emollient; Solvent.

Is Alkanes, C4-5 classified as hazardous?

0.8% of GHS notifications report no hazard classification (11 of 1378).

What are the key physical properties of Alkanes, C4-5?

Boiling Point: 97 °F at 760 mmHg (NTP, 1992); Boiling Point: 36.06 °C; Boiling Point: 36.00 to 37.00 °C. @ 760.00 mm Hg; Boiling Point: 36 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.