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165131

Sigma-Aldrich

2,5-Hexanedione

≥98%

Synonym(s):

Acetonylacetone

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About This Item

Linear Formula:
CH3COCH2CH2COCH3
CAS Number:
Molecular Weight:
114.14
Beilstein:
506525
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

vapor pressure

0.43 mmHg ( 20 °C)

Assay

≥98%

form

liquid

refractive index

n20/D 1.425 (lit.)

bp

191 °C (lit.)

mp

−6-−5 °C (lit.)

solubility

alcohol: miscible
diethyl ether: miscible
water: miscible

density

0.973 g/mL at 25 °C (lit.)

SMILES string

CC(=O)CCC(C)=O

InChI

1S/C6H10O2/c1-5(7)3-4-6(2)8/h3-4H2,1-2H3

InChI key

OJVAMHKKJGICOG-UHFFFAOYSA-N

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General description

2,5-Hexanedione is a major metabolite of the neurotoxic industrial solvent methyl n-butyl ketone. It reacts with amines to yield 2,5-dimethylpyrroles.

Application

2,5-Hexanedione was used as starting reagent in the synthesis of trans-2,5-dimethylpyrrolidine.
It was used as reference standard for the determination of 2,5HD in human urine using gas chromatography-electron capture detection and gas chromatography-mass selective detection.

Pictograms

Health hazardExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2

Target Organs

Nervous system

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

174.2 °F - closed cup

Flash Point(C)

79 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

165131-VAR:
165131-25G:
165131-10KG:
165131-BULK:
165131-5KG:
165131-100G:


Certificates of Analysis (COA)

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E K Allard et al.
Toxicology and applied pharmacology, 137(2), 149-156 (1996-04-01)
The Sertoli cell toxicant 2,5-hexanedione (2,5-HD) causes irreversible testicular atrophy in rats. After toxicant exposure, only Sertoli cells, stem cells, and a few spermatogonia remain in the seminiferous epithelium. In this study, the number, type, and fate of the remaining
D C Anthony et al.
Toxicology and applied pharmacology, 71(3), 372-382 (1983-12-01)
3,4-Dimethyl-2,5-hexanedione and 2,5-hexanedione were reacted with model amines to yield N-substituted 2,3,4,5-tetramethylpyrroles and 2,5-dimethylpyrroles, respectively. When compared to the unsubstituted parent compound 2,5-hexanedione, 3,4-dimethyl-2,5-hexanedione was found to cyclize approximately eight times as rapidly on a molar basis at 37 degrees
An improved synthesis of (-)-(2R, 5R)-2, 5-dimethylpyrrolidine.
Short RP, et al.
The Journal of Organic Chemistry, 54(7), 1755-1756 (1989)
Gas chromatographic method for the sensitive determination of 2, 5-hexanedione using electron capture and mass-selective detection.
Konidari, C. N., C. D. Stalikas, and M. I. Karayannis
Analytica Chimica Acta, 442.2, 231-239 (2001)
Marion Müller et al.
Organic & biomolecular chemistry, 8(7), 1540-1550 (2010-03-20)
The enantiopure (2S,5S)-hexanediol serves as a versatile building block for the production of various fine chemicals and pharmaceuticals. For industrial and commercial scale, the diol is currently obtained through bakers' yeast-mediated reduction of 2,5-hexanedione. However, this process suffers from its

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