2-Undecanone
ALDRICH/W309303 - ≥98%, FCC, FG
Synonym: Methyl nonyl ketone
CAS Number: 112-12-9
Empirical Formula (Hill Notation): C11H22O
Molecular Weight: 170.29
EC Number: 203-937-5
MDL Number: MFCD00009583
Linear Formula: CH3(CH2)8COCH3
Product Type: Chemical
| agency | meets purity specifications of JECFA |
| application(s) | flavors and fragrances |
| assay | ≥98% |
| biological source | synthetic |
| bp | 231-232 °C (lit.) |
| density | 0.825 g/mL at 25 °C (lit.) |
| documentation | see Safety & Documentation for available documents |
| food allergen | no known allergens |
| grade | FG |
| Halal | |
| Kosher | |
| InChI | 1S/C11H22O/c1-3-4-5-6-7-8 |
| InChI key | KYWIYKKSMDLRDC-UHFFFAOYSA |
| mp | 11-13 °C (lit.) |
| organoleptic | fatty; waxy; fruity |
| Quality Level | 300 ![]() |
400 ![]() |
|
| refractive index | n |
| reg. compliance | EU Regulation 1334/2008 & 178/2002 |
| FCC | |
| FDA 21 CFR 172.515 | |
| SMILES string | CCCCCCCCCC(C)=O |
| vapor density | 5.9 (vs air) |
| vapor pressure | <1 mmHg ( 20 °C) |
| Application: | • (14)C-Isotope Use to Quantify Covalent Reactions between Flavor Compounds and β-Lactoglobulin.: Research utilizing 2-Undecanone to study its binding interactions with milk proteins, enhancing understanding of flavor compound stability and protein binding in food products (Shepelev and Reineccius, 2024 ![]() |
| General description: | 2-Undecanone occurs naturally in wild tomato. It is also found in Ruta chalepensis essential oil and hop oil. 2-Undecanone is an insect and tick repellant. |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 250 g in poly bottle |
| Packaging: | 4, 8 kg in poly drum |
| Symbol | GHS09 |
| Signal word | Warning |
| Hazard statements | H410 |
| Precautionary statements | P273 - P501 |
| Hazard Codes | N |
| Risk Statements | 50/53 |
| Safety Statements | 23-24/25-60-61 |
| RIDADR | UN3082 - class 9 - PG 3 - DOT NA1993 - Environmentally hazardous |
| WGK Germany | WGK 2 |
| Flash Point(F) | 192.2 °F - closed cup |
| Flash Point(C) | 89 °C - closed cup |
| Purity | ≥98% |
| bp | 231-232 °C (lit.) |
| mp | 11-13 °C (lit.) |
| Density | 0.825 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| FEMA Number | 3093 |
| UNSPSC | 12164502 |


