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5-METHYL-3-HEXEN-2-ONE

5-METHYL-3-HEXEN-2-ONE structure

CAS No.: 5166-53-0

Chemical Name:: 5-METHYL-3-HEXEN-2-ONE

Synonyms: FEMA 3409;filbert hexenone;3-Hexen-2-one, 5-Me;5-methyl-3-hexen-2-on;3-HEXAN-2-ONE,5-METHYL;5-METHYLHEX-3-EN-2-ONE;5-METHYL-3-HEXEN-2-ONE;5-Methyl-2-oxohex-3-ene;5-Methyl-3-hexene-2-one;2-Oxo-5-methylhex-3-ene

CBNumber:: CB5365636

Molecular Formula:: C7H12O

Molecular Weight:: 112.17

MDL Number:: MFCD00012166

MOL File:: 5166-53-0.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-04-03 14:17:14

Product description	Number	Pack Size	Price
5-Methyl-3-hexen-2-one technical grade, 75%	187607	25g	$367
5-Methyl-3-hexen-2-one (contains 5-Methyl-4-hexen-2-one)	M2366	25mL	$87
5-Methyl-3-hexen-2-one (contains 5-Methyl-4-hexen-2-one)	M2366	100mL	$211
5-Methyl-3-hexen-2-one	6802AL	100ml	$327
5-Methylhex-3-en-2-one 75%	OR27820	25g	$95
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5-METHYL-3-HEXEN-2-ONE Properties

Boiling point	157°C
Density	0.85 g/mL at 25 °C (lit.)
FEMA	3409 \| 5-METHYL-3-HEXEN-2-ONE
FLAVIS Number	07.106 \| 5-Methylhex-3-en-2-one
refractive index	n20/D 1.44(lit.)
Flash point	118 °F
storage temp.	Storage temp. 2-8°C
form	clear liquid
color	Colorless to Light yellow to Light orange
Odor	at 100.00 %. sweet berry cheese
Odor Type	fruity
JECFA Number	1132
InChI	1S/C7H12O/c1-6(2)4-5-7(3)8/h4-6H,1-3H3/b5-4+
InChIKey	IYMKNYVCXUEFJE-SNAWJCMRSA-N
SMILES	CC(C)\C=C\C(C)=O
LogP	1.44
CAS DataBase Reference	5166-53-0(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)	5-METHYL-3-HEXEN-2-ONE
EWG's Food Scores	1
FDA UNII	8L0NZD2EIQ
EPA Substance Registry System	3-Hexen-2-one, 5-methyl- (5166-53-0)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS02,GHS06
Signal word	Danger
Hazard statements	H226-H302+H332-H311
Precautionary statements	P210-P280-P301+P312+P330-P302+P352+P312-P304+P340+P312
Hazard Codes	Xn,T
Risk Statements	10-20/21/22-24-20/22
Safety Statements	16-27-36/37/39-45-36/37
RIDADR	UN 1992 3/PG 3
WGK Germany	3
RTECS	MP8750000
TSCA	TSCA listed
HazardClass	3
PackingGroup	III
HS Code	2914199090
Storage Class	3 - Flammable liquids
Hazard Classifications	Acute Tox. 3 Dermal Acute Tox. 4 Inhalation Acute Tox. 4 Oral Flam. Liq. 3

5-METHYL-3-HEXEN-2-ONE price More Price(7)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	187607	5-Methyl-3-hexen-2-one technical grade, 75%	5166-53-0	25g	$367	2026-03-19	Buy
TCI Chemical	M2366	5-Methyl-3-hexen-2-one (contains 5-Methyl-4-hexen-2-one)	5166-53-0	25mL	$87	2026-03-19	Buy
TCI Chemical	M2366	5-Methyl-3-hexen-2-one (contains 5-Methyl-4-hexen-2-one)	5166-53-0	100mL	$211	2026-03-19	Buy
AK Scientific	6802AL	5-Methyl-3-hexen-2-one	5166-53-0	100ml	$327	2021-12-16	Buy
Apolloscientific	OR27820	5-Methylhex-3-en-2-one 75%	5166-53-0	25g	$95	2021-12-16	Buy

Product number	Packaging	Price	Buy
187607	25g	$367	Buy
M2366	25mL	$87	Buy
M2366	100mL	$211	Buy
6802AL	100ml	$327	Buy
OR27820	25g	$95	Buy

5-METHYL-3-HEXEN-2-ONE Chemical Properties,Uses,Production

Occurrence

Reported found in roasted filberts, green tea, cooked and roasted shrimp.

Uses

5-Methyl-3-hexen-2-one was used in combinatorial synthesis of mercaptoketones and mercaptoalcohols.

General Description

5-methyl-3-hexen-2-one reacts with indole in the presence of pyrrolidine and p-TsOH in CH₂Cl₂ to yield the 3-substituted indole adduct.

5-METHYL-3-HEXEN-2-ONE Preparation Products And Raw materials

Raw materials

Isobutyraldehyde 5-Methyl-2-hexanone

Preparation Products

5-METHYL-3-HEXEN-2-ONE Suppliers

Global( 77)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29795	58
Shaanxi Dideu Medichem Co. Ltd	+86-029-89586680 +86-18192503167	1026@dideu.com	China	10000	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52705	58
Hebei baicao biology science and technology co., ltd	+86-19131911055 +8617824879454	zhang@hbbocao.com	China	1029	58
GIHI CHEMICALS CO.,LIMITED	+86-571-86217390; +8618058761490	info@gihichemicals.com	China	49968	58
HANGZHOU LEAP CHEM CO., LTD.	+86-571-87711850	market18@leapchem.com	China	43333	58
Aladdin Scientific		tp@aladdinsci.com	United States	57505	58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.	+8618950047208	ellena@amitychem.com	China	43416	58
Mainchem Co., Ltd.	+86-0592-6210733	sale@mainchem.com	China	32343	55
J & K SCIENTIFIC LTD.	18210857532; 18210857532	jkinfo@jkchemical.com	China	96815	76

Supplier	Advantage
career henan chemical co	58
Shaanxi Dideu Medichem Co. Ltd	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
Hebei baicao biology science and technology co., ltd	58
GIHI CHEMICALS CO.,LIMITED	58
HANGZHOU LEAP CHEM CO., LTD.	58
Aladdin Scientific	58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.	58
Mainchem Co., Ltd.	55
J & K SCIENTIFIC LTD.	76

View Lastest Price from 5-METHYL-3-HEXEN-2-ONE manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2023-02-13	5-methyl-3-hexen-2-one 5166-53-0	US $10.00 / KG	1KG	99%	50MT	Hebei baicao biology science and technology co., ltd
2020-02-26	5-Methyl-3-hexen-2-one 5166-53-0	US $0.00-0.00 / KG	100g	99.0%+	100 tons	Shaanxi Dideu Medichem Co. Ltd
2020-01-19	5-METHYL-3-HEXEN-2-ONE 5166-53-0	US $1.00 / KG	1KG	99.0%	100kg	Career Henan Chemical Co

5-methyl-3-hexen-2-one
5166-53-0
US $10.00 / KG
99%
Hebei baicao biology science and technology co., ltd

5-Methyl-3-hexen-2-one
5166-53-0
US $0.00-0.00 / KG
99.0%+
Shaanxi Dideu Medichem Co. Ltd

5-METHYL-3-HEXEN-2-ONE
5166-53-0
US $1.00 / KG
99.0%
Career Henan Chemical Co

5-METHYL-3-HEXEN-2-ONE Spectrum

5-METHYL-3-HEXEN-2-ONE(5166-53-0)MS 5-METHYL-3-HEXEN-2-ONE(5166-53-0)¹HNMR 5-METHYL-3-HEXEN-2-ONE(5166-53-0)IR1 5-METHYL-3-HEXEN-2-ONE(5166-53-0)Raman

5166-53-0(5-METHYL-3-HEXEN-2-ONE)Related Search:

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5-METHYL-3-HEXEN-2-ONE 5-METHYLHEX-3-EN-2-ONE 5-METHYL-3-HEXEN-2-ONE, TECH., 80% 3-Hexen-2-one, 5-methyl- 3-HEXAN-2-ONE,5-METHYL FEMA 3409 5-Methyl-3-hexene-2-one 5-Methyl-2-oxohex-3-ene 5-Methyl-3-hexen-2-one (contains 5-Methyl-4-hexen-2-one) 5-Methyl-3-hexen-2-one technical grade, 75% 5-Methylhex-3-en-2-one75% (3E)-5-Methyl-3-hexen-2-one 2-Oxo-5-methylhex-3-ene 3-Hexen-2-one, 5-Me 5-methyl-3-hexen-2-on 5-Methylhex-3-en-2-one 75% 5-METHYL-3-HEXEN-2-ONE USP/EP/BP filbert hexenone 5-methyl-3-heptylene-2-one 5166-53-0 CH32CHCHCHCOCH3 Ketones Organic Building Blocks Carbonyl Compounds C7 to C8 Building Blocks C7 to C8 Carbonyl Compounds Ketones