tert-Amyl peroxy-2-ethylhexanoate (CAS 686-31-7)
tert-Amyl peroxy-2-ethylhexanoate (CAS 686-31-7) is an organic peroxide compound with molecular formula C13H26O3 and molecular weight 230.34. Also known as amyl peroxy-2-ethylhexanoate, t-Amylperoxy 2-ethylhexanoate, tert-Amyl per-2-ethyl hexanoate. It typically appears in liquid form.
tert-Amyl peroxy-2-ethylhexanoate (CAS number: 686-31-7) is widely applied in the curing of synthetic resins and high-temperature crosslinking of elastomers. It is commonly used to produce high-transmittance acrylic resins and medical-grade polymers.
Below you can find its complete physical and chemical properties, safety data, GHS hazard classifications, and a catalog of 16 products from 10 manufacturers.
CAS 686-31-7 is also known as:
- amyl peroxy-2-ethylhexanoate
- t-Amylperoxy 2-ethylhexanoate
- tert-Amyl per-2-ethyl hexanoate
- tert.-Amylperoxy-2-ethylhexanoat
- tert-pentyl 2-ethylperoxyhexanoate
- 2-methylbutan-2-yl 2-ethylhexaneperoxoate
- 2-Ethylhexaneperoxoic acid tert-amyl ester
- 2-Ethylperoxyhexanoic acid tert-amyl ester
- 2-Ethylhexaneperoxoic acid tert-pentyl ester
- TAPEH
CAS Number
686-31-7
Molecular Formula
C13H26O3
Molecular Weight
230.34
EINECS Number
211-689-5
MDL Number
MFCD00009477
BRN Number
1744955
Chemical Name
tert-Amyl peroxy-2-ethylhexanoate
Last Updated
7/15/2025
Aliases
Appearance
Colorless liquid with an ester-like odor
Appearance State
Liquid. Slightly soluble in water.
Color
Colorless
Odor
Pungent odor
Form
Liquid
Melting Point
-20
Boiling Point
68 at 0.5 Torr
Flash Point
60
Density
0.908
Vapor Density
>1 (air=1)
Vapor Pressure
0.019 Pa @ 25°C
Refractive Index
1.418-1.422
LogP Value
4.56 @ 25 °C
Merck Index
Not Listed
Solubility
17.6 mg/L at 20°C
Water Solubility
17.6 mg/L @ 20°C
Solubility Detail
Solubility in water is 17.6 mg/L (20°C).
Storage Conditions
Store in a cool, dark place in a sealed container.
InChI Key
IFXDUNDBQDXPQZ-UHFFFAOYSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Danger
Hazard Symbols
O
Risk Codes
R7, R36/37/38
UN Number
UN 2898
IARC Classification
Not Classified
WGK Germany
2
RTECS Number
-
Auto-ignition Temperature
285
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29162990
Occupational Exposure Band (OEB)
Not Specified
Occupational Exposure Limit (OEL)
Not Specified
Immediately Dangerous to Life or Health (IDLH)
Not Specified
Hazard Statements
H317,H410,H242Precautionary Statements
P273,P391,P501,P261,P272,P280,P302+P352,P333+P313,P321,P363,P501,P210,P220,P234,P280,P370+P378,P403+P235,P411,P420,P501Safety Statements
S3/7, S14, S26, S36/37/39, S61
10 suppliers offering 16 products for tert-Amyl peroxy-2-ethylhexanoate (CAS 686-31-7). Compare equivalent grades across brands (e.g., Trigonox vs Luperox) by assay, physical form, and availability from trusted manufacturers and distributors worldwide.
| Company Name | Product Model | Assay | Physical Form | Status |
|---|---|---|---|---|
| Dongsung Chemical Co., Ltd. | CHEMEX AO | 95% | Liquid | In Production |
| Nouryon Chemicals International B.V. | Trigonox 121 | Liquid | In Production | |
| Nouryon Chemicals International B.V. | Trigonox 121/117/23-CH93 | Liquid | Imported | |
| Zibo Zhenghua Auxiliary Co., Limited | ZH-TAPEH | - | In Production | |
| Arkema Changshu site | LUPEROX 575 | 95% | Liquid | Imported |
| United Initiators GmbH | NOROX 411 | - | Imported | |
| United Initiators GmbH | TAPEH-75-AL1 | - | Imported | |
| Anhui Changhe New Material Co., Ltd. | Bluerox BX 66 | Liquid | In Development | |
| United Initiators GmbH | TAPEH | Liquid | Imported | |
| Lanzhou Auxiliary Agent Plant Co., Ltd. | LQ-TAPEH | - | In Production | |
| Pergan GmbH | PEROXAN APO | 95% | Liquid | Imported |
| Nouryon Chemicals International B.V. | Trigonox 121-CH75 | 75% | Liquid | Imported |
| GO YEN CHEMICAL INDUSTRIAL CO., LTD. | GYC TAPEH | 99% | Liquid | In Production |
| Nouryon Chemicals International B.V. | Trigonox 121-C75 | 75% | Liquid | Imported |
| Jiujiang Qianfa Fine Chemical Co., Ltd. | QF-TAPO | 98% | Liquid | In Production |
| Nouryon Chemicals International B.V. | Trigonox 121/23-CH89 | Liquid | Imported |
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