Butyl levulinate

CAS Number
2052-15-5
EC Number
218-143-4
Chemical Formula
C9H16O3
Molecular Weight
172.22 g/mol
FEMA Number
FEMA 2207

Description

Butyl levulinate (CAS 2052-15-5), also known by its FEMA 2207 designation, is a levulinic acid ester used commercially as a plasticizer, solvent, and flavoring agent. Derived from renewable feedstocks, it bridges bio-based chemistry with industrial performance across multiple end-use sectors. In plastics and polymer formulations, it functions as a plasticizer and softener.

It improves flexibility and processability in PVC and biopolymer compounds. As a solvent and carrier, it supports coating, ink, and adhesive formulations where moderate evaporation rate and good solvency are required. Food and beverage manufacturers use it as a flavoring agent under FEMA 2207, where it contributes fruity, caramel-like notes to confectionery, baked goods, and beverages.

Lubricant and metalworking formulators also incorporate it as a bio-based carrier fluid or diluent in specialty blends targeting sustainability requirements for modern industrial applications. Butyl levulinate is supplied as a clear liquid in standard drum and IBC quantities, with bulk tanker options available for larger procurement volumes across global supply chains.

Food-grade material is available meeting FEMA specifications, while technical-grade product serves industrial solvent and plasticizer applications with high efficiency and reliability. Purity levels typically range from 98% upward, with certificate of analysis documentation standard across both grades to ensure compliance with rigorous internal quality control protocols.

Other Names (Synonyms)

Butyl 4-oxopentanoate|Pentanoic acid, 4-oxo-, butyl ester|n-Butyl levulinate|Butyl laevulinate|n-Butyl laevulinate|LEVULINIC ACID, BUTYL ESTER|Butyl 4-ketovalerate|Butyl acetylpropionate

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Boiling Point 248 °C @ Press: 750 Torr
Density 0.974 g/cm³ @ Temp: 25 °C; Press: 750 Torr
Flash Point 197 °F
Appearance CLEAR YELLOW TO ORANGE-BROWN LIQUID
Color Colorless to Almost colorless
Odor at 100.00 %. fruity herbal waxy caramel savory
Form clear liquid
Water Solubility Slightly soluble in water.
Vapor Pressure 5Pa at 25℃
Refractive Index n 20/D 1.427(lit.)
Log P 1.435 at 20℃

Safety & Handling (Learn More)

Warning
GHS07· Irritant

Hazard Statements

H315 Causes skin irritation
H319 Causes serious eye irritation

Precautionary Statements

P264 Wash … thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).
P264+P265 Wash … thoroughly after handling.
P302+P352 IF ON SKIN: Wash with plenty of water.
P332+P317 Get emergency medical help.
P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code 29183000
Storage Class 10 - Combustible liquids
WGK (Germany) 2

Documentation

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