3,4-Hexanedione

CAS No.：4437-51-8

Other grades of this product :

3,4-Hexanedione Basic information

Product Name:	3,4-Hexanedione
Synonyms:	3,4-HEXANEDIONE;3,4-DIOXOHEXANE;3,4-Hexandion;HEXANDION 3,4;DIPROPIONYL;DIETHYL-ALPHA, BETA-DI-KETONE;FEMA 3168;Bipropionyl
CAS:	4437-51-8
MF:	C6H10O2
MW:	114.14
EINECS:	224-651-7
Product Categories:	C3 to C6;Carbonyl Compounds;Ketones;Building Blocks;C3 to C6;Carbonyl Compounds;Industrial/Fine Chemicals;Organics;ketone Flavor;Alphabetical Listings;Flavors and Fragrances;G-H;Chemical Synthesis;Organic Building Blocks
Mol File:	4437-51-8.mol

3,4-Hexanedione Chemical Properties

Melting point	-10 °C
Boiling point	131 °C (lit.)
density	0.939 g/mL at 25 °C (lit.)
refractive index	n20/D 1.41(lit.)
FEMA	3168 \| 3,4-HEXANEDIONE
Fp	88 °F
storage temp.	Sealed in dry,2-8°C
form	Liquid
color	Clear yellow
Water Solubility	127 g/L (20 ºC)
JECFA Number	413
BRN	1700837
CAS DataBase Reference	4437-51-8(CAS DataBase Reference)
NIST Chemistry Reference	3,4-Hexanedione(4437-51-8)
EPA Substance Registry System	3,4-Hexanedione (4437-51-8)

Safety Information

Hazard Codes	Xn
Risk Statements	10-36/38-20
Safety Statements	23-24/25-37/39-26-16
RIDADR	UN 1224 3/PG 3
WGK Germany	1
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29141900

MSDS Information

Provider	Language
3,4-Hexanedione	English
SigmaAldrich	English
ACROS	English
ALFA	English

3,4-Hexanedione Usage And Synthesis

Description	3,4-Hexanedione has a pungent, unpleasant odor reminiscent of butter and a taste similar to that of diacetyl. May be prepared synthetically by condensation of ethyl propionate in the presence of sodium metal, followed by oxidation of the resulting propionin with copper acetate or ferric chloride.
Chemical Properties	3,4-Hexanedione has an aromatic, toasty, burnt, buttery, nutty, caramel-eggy, pungent odor.
Chemical Properties	clear yellow liquid
Occurrence	Reported found in cauliflower, coffee
Preparation	By condensation of ethyl propionate in the presence of sodium metal, followed by oxidation of the resulting propionin with copper acetate or ferric chloride.
Aroma threshold values	Aroma characteristics at 1.0%: sweet buttery, creamy, slightly cooked caramel and burnt sugary reminiscent of ghee and eggy vanillas.
Taste threshold values	Taste characteristics at 5 ppm: sweet buttery, creamy, pound cake and egg caramel-like with vanilla nuances.
General Description	The dermal irritation and sensitization potential of 3,4-hexanedione (used as constituents of synthetic flavoring agent) was studied using a murine model. The 3,4-hexanedione derivatives inhibited oxoglutarate transport.
Biochem/physiol Actions	Odor at 1.0%

3,4-Hexanedione Preparation Products And Raw materials

Raw materials	Ferric chloride-->Cupric acetate monohydrate-->Ethyl propionate
Preparation Products	2,3-Diethylpyrazine-->2,3-Diethyl-5-methylpyrazine

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