2-methylhexanoic acid
- CAS No.
- 4536-23-6
- Chemical Name:
- 2-methylhexanoic acid
- Synonyms
- FEMA 3191;2-METHYLCAPROIC ACID;sodium 2-methylhexanoate;FEMA NUMBER 3191;CARBOXYLIC ACID C7;2-Methylhexansαure;α-Methylcaproicacid;2-methyl-hexanoicaci;a-Methylcaproic acid;2-METHYLHEXANOIC ACID
- CBNumber:
- CB1421374
- Molecular Formula:
- C7H14O2
- Molecular Weight:
- 130.18
- MDL Number:
- MFCD00002674
- MOL File:
- 4536-23-6.mol
- MSDS File:
- SDS
| Melting point | -55.77°C (estimate) |
|---|---|
| Boiling point | 209-210 °C (lit.) |
| Density | 0.918 g/mL at 25 °C (lit.) |
| vapor pressure | 0.0576 mmHg ( 25 °C)(lit.) |
| refractive index |
n |
| FEMA | 3191 | 2-METHYLHEXANOIC ACID |
| FLAVIS Number | 08.035 | 2-Methylhexanoic acid |
| Flash point | 222 °F |
| storage temp. | Store at 2-8°C |
| Water Solubility | Soluble in water |
| solubility | Aqueous Base (Slightly), Chloroform (Soluble), Methanol (Slightly) |
| pka | 4.82±0.21(Predicted) |
| form | clear liquid |
| color | Colorless to Light yellow |
| Specific Gravity | 0.916 |
| Odor | at 10.00 % in dipropylene glycol. fruity cheese oily fatty lard |
| Odor Type | cheesy |
| biological source | synthetic |
| JECFA Number | 265 |
| BRN | 1721227 |
| Major Application | flavors and fragrances |
| InChI | 1S/C7H14O2/c1-3-4-5-6(2)7(8)9/h6H,3-5H2,1-2H3,(H,8,9) |
| InChIKey | CVKMFSAVYPAZTQ-UHFFFAOYSA-N |
| SMILES | CCCCC(C)C(O)=O |
| LogP | 2.19 |
| CAS DataBase Reference | 4536-23-6(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | 2-METHYLHEXANOIC ACID |
| FDA UNII | LUK37N0QM8 |
| NIST Chemistry Reference | Hexanoic acid, 2-methyl-(4536-23-6) |
| EPA Substance Registry System | Hexanoic acid, 2-methyl- (4536-23-6) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS05 |
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|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H226-H314 | |||||||||
| Precautionary statements | P210-P233-P240-P280-P303+P361+P353-P305+P351+P338 | |||||||||
| PPE | Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | C | |||||||||
| Risk Statements | 34 | |||||||||
| Safety Statements | 26-36/37/39-45 | |||||||||
| RIDADR | UN 3265 8/PG 2 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | MO8400600 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29159080 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Eye Dam. 1 Flam. Liq. 3 Skin Corr. 1B |
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| Limited Quantities | 1.0 L (0.3 gallons) (liquid) or 1 Kg (2.2 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
2-methylhexanoic acid price More Price(34)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W319104 | 2-Methylhexanoic acid ≥99%, FG | 4536-23-6 | 1 each | $58 | 2026-04-30 | Buy |
| Sigma-Aldrich | W319104 | 2-Methylhexanoic acid ≥99%, FG | 4536-23-6 | 100g | $191 | 2026-04-30 | Buy |
| Sigma-Aldrich | W319104 | 2-Methylhexanoic acid ≥99%, FG | 4536-23-6 | 1kg | $903 | 2026-04-30 | Buy |
| Sigma-Aldrich | 338273 | 2-Methylhexanoic acid 99% | 4536-23-6 | 5g | $40 | 2026-04-30 | Buy |
| Sigma-Aldrich | W319104 | 2-Methylhexanoic acid ≥99%, FG | 4536-23-6 | 1 unit | $53.48 | 2025-07-31 | Buy |
2-methylhexanoic acid Chemical Properties, Uses, Production
Application
2-Methylhexanoic acid, also known as 2-butylpropionic acid, butylmethylacetic acid, or hexane-2-carboxylic acid, is FEMA number 3191. It is a colorless, oily liquid at room temperature. Its optically active isomers are miscible with water, ether, ethanol, chloroform, and other solvents. It is naturally found in apples and strawberries. Aroma: Acidic, oily, fatty, lard, and chicken fat aroma, with hints of roasted, appetizing dishes. Taste: Dairy, creamy, and oily fatty aroma. Used in food processing flavorings such as lard, chicken fat, appetizing dishes, and dairy products. It can be produced by chlorinating sec-hexanol to form a Grignard reagent, then passing dry carbon dioxide gas into the Grignard reagent reaction solution, reacting, and finally hydrolyzing to obtain the product.
Description
2-methylhexanoic acid is a medium-chain fatty acid with an aliphatic tail that contains between 4 and 12 carbon atoms. It naturally occurs in Bothriochloa bladhii. 2-methylhexanoic acid has a unique profile with a great combination of cheese and fruit characteristics which work perfectly in either savory or sweet applications.
Chemical Properties
2-Methylhexanoic acid is a clear colorless to slightly yellow liquid with has a fruity odor.
Occurrence
Reported found in baked potato, grape brandy and Virginia tobacco, parmesan cheese, raw and cooked mutton, roasted lamb, cognac and black tea.
Preparation
By catalytic hydrogenation of hexadien-2-carboxylic acid.
Definition
ChEBI: 2-methylhexanoic acid is a medium-chain fatty acid.
Aroma threshold values
Detection: 920 ppb to 2.7 ppm. Aroma characteristics at 1.0%: acidic sour, dairy fatty with cooked lardlike nuances
Taste threshold values
Taste characteristics at 40 ppm: dairy, creamy fatty with an oily mouthfeel and waxy nuance.
General Description
2-methylhexanoic acid has been identified as one of the volatile flavor compounds in the peel and pulp of doum fruit.
Hazard
A reproductive hazard.
2-methylhexanoic acid Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| jiliang chemicals | 21-62165282 | bidingchem@163.com | China | 1395 | 60 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Beijing Donghualituo Techonlogy Development Co.,Ltd. | 010-88425576 | sales@dhltchem.com | China | 793 | 59 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Wuhan Chemwish Technology Co., Ltd | 86-027-67849912 | sales@chemwish.com | China | 35884 | 56 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Beijing Isomersyn Technology CO;LTD | 010-82954736 13391601435 | sales@isomersyn.com | China | 3294 | 57 |
View Latest Price from 2-methylhexanoic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-07 | 2-methylhexanoic acid
4536-23-6
|
$11.00-25.00 | 1KG | 99% | 200000KG | Shaanxi Dideu Medichem Co. Ltd | |
 |
2026-07-17 | 2-Methylhexanoic acid
4536-23-6
|
$30.00-81.00 | 99.61% | 10g | TargetMol Chemicals Inc. | ||
 |
2026-06-08 | 2-methylhexanoic acid
4536-23-6
|
1kg | 99% | 1 | Jinan Ruitong Biotech Co., Ltd. |
-
- 2-methylhexanoic acid
4536-23-6
- $11.00-25.00
- 99%
- Shaanxi Dideu Medichem Co. Ltd
-
- 2-Methylhexanoic acid
4536-23-6
- $30.00-81.00
- 99.61%
- TargetMol Chemicals Inc.
-
- 2-methylhexanoic acid
4536-23-6
- 99%
- Jinan Ruitong Biotech Co., Ltd.
