乙基戊酮

Description

ETHYL AMYL KETONE · CAS 541-85-5 · C8H16O. UNII 9RQ13D247K. Boiling Point: 315 °F at 760 mmHg (NIOSH, 2024); Boiling Point: 157-162 °C; Boiling Point: 168 °C @760 [mm Hg].

Identification

CAS Registry Number	541-85-5
PubChem CID	7822
Molecular formula	C8H16O
IUPAC name	5-methylheptan-3-one
UNII (FDA)	9RQ13D247K

Computed Descriptors

Molecular Weight	128.21
XLogP3	2.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	4
Exact Mass	128.120115130
Monoisotopic Mass	128.120115130
Topological Polar Surface Area	17.1
Heavy Atom Count	9
Formal Charge	0

Physical & Chemical Properties

Boiling Point	315 °F at 760 mmHg (NIOSH, 2024)
Boiling Point	157-162 °C
Boiling Point	168 °C @760 [mm Hg]
Boiling Point	315 °F
Melting Point	-70 °F (NIOSH, 2024)
Melting Point	-56.7 °C
Melting Point	-23 °C
Melting Point	-70 °F
Flash Point	138 °F (NIOSH, 2024)
Flash Point	43 °C c.c., 57.2 °C o.c.

Physical description & handling notes

• Ethyl sec-amyl ketone appears as a clear colorless liquid with a pungent odor. Insoluble in water and partially soluble in alcohol. Vapors are denser than air and may have a narcotic effect in high concentrations. Used in making perfumes and as a solvent for nitrocellulose and vinyl resins.
• Liquid
• Colorless liquid with a pungent odor; [NIOSH]
• COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.
• Colorless liquid with a pungent odor.
• Insoluble (NIOSH, 2024)

Regulatory Status

Regulatory & Food Contact	EU Flavoring substances Flavoring Agents

GHS Hazard Classification

Reported hazard statements	H226, H319, H335, H336, H320, H332, H303, H316

Documented Uses

• Used as a solvent for resins; [ACGIH]
• Plastic Composites Manufacturing [Category: Industry]
• Information on 1 consumer products that contain 5-methylheptan-3-one in the following categories is provided:
• Soap, Cleaning Compound, and Toilet Preparation Manufacturing

Synonyms

5-Methylheptan-3-one; 5-METHYL-3-HEPTANONE; 541-85-5; 3-Heptanone, 5-methyl-; 3-Methyl-5-heptanone; Ethyl 2-methylbutyl ketone; Ethyl sec-amyl ketone; 2-Methylbutyl ethyl ketone; DTXSID9047047; 9RQ13D247K; NSC-100734; DTXCID7027047; RefChem:1073113; 208-793-7; Ethyl amyl ketone; n-Amyl ethyl ketone

Frequently Asked Questions

What are the CAS number and molecular formula of ETHYL AMYL KETONE?

CAS 541-85-5; molecular formula C8H16O; molecular weight — g/mol.

What other names is ETHYL AMYL KETONE known by?

5-Methylheptan-3-one, 5-METHYL-3-HEPTANONE, 541-85-5, 3-Heptanone, 5-methyl-, 3-Methyl-5-heptanone, Ethyl 2-methylbutyl ketone.

What is the regulatory status of ETHYL AMYL KETONE?

Documented regulatory listings: EU Flavoring substances; Flavoring Agents.

Is ETHYL AMYL KETONE classified as hazardous?

Hazard statements reported: H226, H319, H335, H336, H320.

What are the key physical properties of ETHYL AMYL KETONE?

Boiling Point: 315 °F at 760 mmHg (NIOSH, 2024); Boiling Point: 157-162 °C; Boiling Point: 168 °C @760 [mm Hg]; Boiling Point: 315 °F.

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.