≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 528760802 |
|---|---|
| Sorrisi canonici | CCCCC(C)CCC(=O)O |
| IUPAC Name | 4-methyloctanoic acid |
| InChIKey | LEGGANXCVQPIAI-UHFFFAOYSA-N |
| INCHI | 1S/C9H18O2/c1-3-4-5-8(2)6-7-9(10)11/h8H,3-7H2,1-2H3,(H,10,11) |
| Isomeri SMILES | CCCCC(C)CCC(=O)O |
| WGK Germania | 1 |
| Numero UN | 3265 |
| Peso molecolare | 158.24 |
| Beilstein | 2(4)1029 |
| Reaxy-Rn | 1755426 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1755426&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Lipids and lipid-like molecules |
| Classe | Fatty Acyls |
| Subclass | Fatty acids and conjugates |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Medium-chain fatty acids |
| Alternative Parents | Methyl-branched fatty acids Monocarboxylic acids and derivatives Carboxylic acids Organic oxides Hydrocarbon derivatives Carbonyl compounds |
| Molecular Framework | Aliphatic acyclic compounds |
| Substituents | Medium-chain fatty acid - Methyl-branched fatty acid - Branched fatty acid - Monocarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound |
| Descrizione | This compound belongs to the class of organic compounds known as medium-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms. |
| External Descriptors | Branched fatty acids |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Data | Oggetto |
|---|---|---|---|
 C2604170 | Certificate of Analysis | Mar 05, 2026 | M103013 |
| C1829060 | Certificate of Analysis | Oct 14, 2025 | M103013 |
| K2119084 | Certificate of Analysis | Sep 04, 2025 | M103013 |
| K2119089 | Certificate of Analysis | Sep 04, 2025 | M103013 |
| H2506054 | Certificate of Analysis | Aug 12, 2025 | M103013 |
| K1221045 | Certificate of Analysis | Oct 12, 2024 | M103013 |
| Indice di rifrazione | 1.433 |
|---|---|
| Punto di infiammabilità (°F) | 113 °C |
| Punto di infiammabilità (°C) | 113°C |
| Punto di ebollizione (°C) | 149°C |
| Peso molecolare | 158.240 g/mol |
| XLogP3 | 3.000 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 6 |
| Exact Mass | 158.131 Da |
| Monoisotopic Mass | 158.131 Da |
| Topological Polar Surface Area | 37.300 Ų |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
| Complexity | 110.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 1 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
| 1. Zhichao Zhang, Xiaoqi Wang, Li Wang, Renan Wu, Yan Jin, Ziyuan Duan. (2025) Identification and comparison of mutton flavor related branched-chain fatty acids among 4 Chinese indigenous sheep. JOURNAL OF FOOD COMPOSITION AND ANALYSIS, [PMID:] [10.1016/j.jfca.2025.107918] |
| 2. Che Shen, Wenxi Qi, Yi Zhang, Ran Wang, Qi Jin, Kezhou Cai, Bo Wang, Dengyong Liu. (2025) Decoding aroma perception of grilled lamb skewers: an EEG-MambaFusionNet framework integrating TDS and GC-IMS. FOOD CHEMISTRY, [PMID:41443075] [10.1016/j.foodchem.2025.147676] |
| 3. Xian Chen, Guangsen Fan, Wanying He, Peng Wang, Jingzhang Geng, Chunmei Gou, Ping Zhan, Honglei Tian. (2026) Thyme polyphenols modulate myofibrillar protein-odorant interactions: Molecular mechanistic insights into mutton off-flavor release. FOOD CHEMISTRY, [PMID:41570682] [10.1016/j.foodchem.2026.148048] |
