3-Hydroxyhexanoic Acid Methyl Ester

CAS NO.：21188-58-9
Empirical Formula: C7H14O3
Molecular Weight: 146.18
MDL number: MFCD00083583
EINECS: 244-261-0
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 03:49:51

What is 3-Hydroxyhexanoic Acid Methyl Ester?

Description

Methyl 3-hydroxyhexanoate is ethereal, wine-like, fruity, and oily.

Description

3-hydroxy Hexanoic acid methyl ester is a hydroxylated fatty acid that is a volatile component and aromatic agent that has been found in Moro and Sanguinello blood orange juices, cape gooseberry flesh, papaya fruit, and pineapple. It is used as a flavoring agent in the food industry. [Matreya, LLC. Catalog No. 1748]

Chemical properties

Methyl 3-hydroxyhexanoate has an ethereal, wine-like, fruity, oily, aroma.

Occurrence

Reported found in Valencia orange juice, passion fruit juice, pineapple, strawberry fruit and jam, wood apple, soursop, mountain papaya and naranjilla fruit.

The Uses of 3-Hydroxyhexanoic Acid Methyl Ester

3-Hydroxyhexanoic Acid Methyl Ester is an ester found in pineapple juice and is used as a flavoring compound in food.

Definition

ChEBI: Methyl 3-hydroxyhexanoate is a 3-hydroxy carboxylic acid.

Preparation

3-Hydroxyhexanoic Acid Methyl Ester is prepared from Methyl-n-propylketone plus afpha-Bromoacetic ester (or alp/za-Chloroacetic ester) in presenrx of Zinc (or Magnesium).

Taste threshold values

Taste characteristics at 5 ppm: sweet, fruity, overripe, pineapple and tropical with woody nuances

Properties of 3-Hydroxyhexanoic Acid Methyl Ester

Boiling point:	98 °C(Press: 15 Torr)
Density	1 g/mL at 25 °C(lit.)
refractive index	n20/D 1.43(lit.)
FEMA	3508 \| METHYL 3-HYDROXYHEXANOATE
Flash point:	185 °F
storage temp.	Sealed in dry,Room Temperature
form	neat
pka	13.95±0.20(Predicted)
form	liquid
color	Colorless
Odor	at 10.00 % in dipropylene glycol. sweet woody ripe fruity pineapple juicy oily
JECFA Number	600
InChI	InChI=1S/C7H14O3/c1-3-4-6(8)5-7(9)10-2/h6,8H,3-5H2,1-2H3
EPA Substance Registry System	Methyl 3-hydroxyhexanoate (21188-58-9)

Safety information for 3-Hydroxyhexanoic Acid Methyl Ester

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05
GHS Hazard Statements	H318:Serious eye damage/eye irritation
Precautionary Statement Codes	P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.