Cyclopentanone
ALDRICH/W391018 - ≥99%, FG
Synonym: Adipic ketone; Dumasin; Ketopentamethylene
CAS Number: 120-92-3
Empirical Formula (Hill Notation): C5H8O
Molecular Weight: 84.12
EC Number: 204-435-9
MDL Number: MFCD00001409
Linear Formula: C5H8(=O)
Product Type: Chemical
| agency | meets purity specifications of JECFA |
| application(s) | flavors and fragrances |
| assay | ≥99% |
| biological source | synthetic |
| bp | 130-131 °C (lit.) |
| density | 0.951 g/mL at 25 °C (lit.) |
| documentation | see Safety & Documentation for available documents |
| food allergen | no known allergens |
| grade | FG |
| Halal | |
| Kosher | |
| InChI | 1S/C5H8O/c6-5-3-1-2-4-5/h |
| InChI key | BGTOWKSIORTVQH-UHFFFAOYSA |
| mp | −51 °C (lit.) |
| organoleptic | minty |
| Quality Level | 300 ![]() |
400 ![]() |
|
| refractive index | n |
| reg. compliance | EU Regulation 1334/2008 & 872/2012 |
| FDA 21 CFR 110 | |
| SMILES string | O=C1CCCC1 |
| Application: |
|
| General description: | Cyclopentanone is a cyclic ketone that occurs in allium species, beef, cheese, and chicken. It is generally used as a fragrance ingredient in fragrances and in non-cosmetic products. |
| Other Notes: | Handle and store under inert gas. |
| Packaging: | 1 kg in glass bottle |
| Packaging: | 5, 10 kg in steel drum |
| Symbol | ![]() GHS02,GHS07 |
| Signal word | Warning |
| Hazard statements | H226 - H315 - H319 |
| Precautionary statements | P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Statements | 10-36/38 |
| Safety Statements | 23 |
| RIDADR | UN 2245 3 / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | 86.0 °F - closed cup |
| Flash Point(C) | 30 °C - closed cup |
| Purity | ≥99% |
| bp | 130-131 °C (lit.) |
| mp | −51 °C (lit.) |
| Density | 0.951 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| FEMA Number | 3910 |
| UNSPSC | 12164502 |



