Overview
Dimethylethylcarbinol (CAS 75-85-4 ), also known commercially as amylene hydrate and abbreviated as TAA (tert-amyl alcohol), is a tertiary alcohol used across polymer processing, flavoring, and cosmetic formulations.
It functions primarily as a stabilizer, curing co-agent, and flavoring ingredient depending on the application sector. In plastics and polymer manufacturing, TAA acts as a stabilizer and cross-linking agent.
In peroxide-cured systems, it improves process consistency and end-product integrity. Food and beverage producers use it as a flavoring ingredient, where it contributes characteristic notes to finished products at regulated usage levels.
In personal care formulations, it functions as a solvent and co-solvent that aids ingredient compatibility and helps control viscosity in topical products. It also serves as an intermediate in the synthesis of tert-amyl methyl ether.
This material is also used for other fuel additives, representing a distinct industrial demand channel. Dimethylethylcarbinol is supplied as a clear liquid in drum and IBC quantities for various industrial needs.
Bulk tanker options are available for larger procurement volumes. Technical grade is the most common commercial specification, though material meeting food-grade and flavor-industry purity standards is also available.
Buyers should confirm grade suitability against relevant specifications such as FCC for food and flavoring end uses. This ensures compliance with safety and quality requirements for regulated applications.
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Physical Properties
| Melting Point | -8.8 °C |
| Boiling Point | 102.4 °C @ Press: 760 Torr |
| Density | 0.8096 g/cm³ @ Temp: 20 °C |
| Flash Point | 20 °C |
| Appearance | Amyl alcohols (pentanols) have eight isomers. All are flammable, colorless liquids, except the isomer 2,2- dimethyl-1-propanol, which is a crystalline solid. |
| Color | Clear colorless |
| Odor | pungent |
| Form | Liquid |
| Water Solubility | 120 g/L (20 ºC) |
| Vapor Pressure | 15.5 hPa (20 °C) |
| Refractive Index | n 20/D 1.405(lit.) |
| pH | 6.0 (118g/l, H2O, 20℃)neutral |
| Log P | 0.890 |
Safety & Handling
Danger GHS02 GHS07 GHS05 GHS08 Hazard Statements H225 Highly Flammable liquid and vapor H302 Harmful if swallowed H312 Harmful in contact with skin H315 Causes skin irritation H318 Causes serious eye damage H319 Causes serious eye irritation H332 Harmful if inhaled H335 May cause respiratory irritation H336 May cause drowsiness or dizziness H370 Causes damage to organs 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. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. 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). P330 Rinse mouth. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. 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. 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. P305+P354+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 | 29051500 |
| UN Number | 1105 |
| ADR Class | 3 |
| Packing Group | II |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 1 |
Other Names
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Chemical Properties
- CAS Number
- 75-85-4
- EC Number
- 200-908-9
- Mol. Weight
- 88.15
- HS Code
- 29051500
- Category
- Alcohols & Glycols