Overview
3-Methylbutanal (CAS 590-86-3 ), also known as isovaleraldehyde, is an aliphatic aldehyde used as a flavoring and fragrance ingredient across food and cosmetic applications.
With FEMA number 2692 , it is a recognized flavoring substance that delivers malty, cocoa, and chocolate-like character to finished products in various industries.
In food and beverage formulation, it contributes to the development of roasted, malty, and chocolate flavor profiles in confectionery, baked goods, and dairy products.
Fragrance houses incorporate it into fine fragrance and personal care formulations where green, fruity, or aldehydic top notes are required for the final scent profile.
It also functions as a chemical intermediate in the synthesis of more complex aroma compounds, supporting flavor ingredient manufacturers upstream in the supply chain.
Cosmetic formulators use it in shampoos, conditioners, and skin care products where a defined scent profile is part of the product brief and consumer experience.
The product is supplied as a clear liquid in standard packaging formats suited to both laboratory-scale and bulk industrial procurement for global distribution.
It is available in flavor and fragrance grade, with purity specifications typically at or above 98%. Buyers should confirm compliance with relevant regional flavor regulations.
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Physical Properties
| Melting Point | -51 °C |
| Boiling Point | 92.5 °C @ Press: 760 Torr |
| Density | 0.7977 g/cm³ @ Temp: 20 °C |
| Flash Point | 29 °F |
| Appearance | colourless liquid with a strong and (for some |
| Color | Clear colorless to light yellow |
| Odor | at 0.10 % in dipropylene glycol. ethereal aldehydic chocolate peach fatty |
| Form | Liquid |
| Water Solubility | 15 g/L (20 ºC) |
| Vapor Pressure | 30 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.388(lit.) |
| Log P | 1.5 at 25℃ and pH7 |
Safety & Handling
Danger GHS02 GHS07 GHS09 Hazard Statements H225 Highly Flammable liquid and vapor H315 Causes skin irritation H317 May cause an allergic skin reaction H319 Causes serious eye irritation H332 Harmful if inhaled H335 May cause respiratory irritation H411 Toxic to aquatic life with long lasting effects Precautionary Statements P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P333+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. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P403+P235 Store in a well-ventilated place. Keep cool. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. 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 | 29121900 |
| UN Number | 1989 |
| ADR Class | 3 |
| Packing Group | II |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 590-86-3
- EC Number
- 209-691-5
- Mol. Weight
- 86.13
- HS Code
- 29121900
- Category
- Flavors & Fragrances