Butyl 4,4-bis(tert-butyldioxy)valerate (CAS 995-33-5)
Butyl 4,4-bis(tert-butyldioxy)valerate (CAS 995-33-5) is an organic peroxide compound with molecular formula C17H34O6 and molecular weight 334.45. Also known as butyl 4,4-di(butylperoxy)valerate. It typically appears in liquid form.
Butyl 4,4-bis(tert-butyldioxy)valerate (CAS number: 995-33-5) is an specialty chemical raw material that is adopted by leading global material manufacturers for the modification of high-performance plastics and specialty rubbers. It is particularly suitable for manufacturing wire and cable insulation and vulcanizing rubber products. Its exceptional chemical characteristics give it an important position in modern industrial formulations, providing enterprises with highly efficient product solutions.
Below you can find its complete physical and chemical properties, safety data, GHS hazard classifications, and a catalog of 15 products from 6 verified manufacturers.
CAS 995-33-5 is also known as:
- butyl 4,4-di(butylperoxy)valerate
CAS Number
995-33-5
Molecular Formula
C17H34O6
Molecular Weight
334.45
EINECS Number
213-626-6
MDL Number
MFCD00072669
BRN Number
1746688
Chemical Name
Butyl 4,4-bis(tert-butyldioxy)valerate
Last Updated
7/21/2025
Aliases
Appearance
Colorless liquid
Appearance State
Liquid. Insoluble in water.
Color
Colorless
Odor
Faint camphor-like odor
Form
Liquid
Melting Point
146
Boiling Point
363.9 (predicted)
Flash Point
151.9
Density
0.967
Vapor Density
>1 (air=1)
Vapor Pressure
0.053 Pa @ 25°C
Refractive Index
1.4336 (20°C)
LogP Value
6.34 @ 55 °C
Merck Index
Not Listed
Solubility
Solubility in water ca. 2.16 mg/L (20.2 °C)
Water Solubility
2.16 mg/L @ 20.2°C
Solubility Detail
Slightly soluble in chloroform, DMSO, ethyl acetate.
Storage Conditions
Store in a cool, dark place, at a strictly controlled temperature (below 38°C).
InChI Key
PWEUDGPXONDEBB-UHFFFAOYSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Danger
Hazard Symbols
Xn
Risk Codes
R36/37/38
UN Number
UN 2140/2141
IARC Classification
Not Classified
WGK Germany
2
RTECS Number
-
Auto-ignition Temperature
No Data Available
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29161900
Occupational Exposure Band (OEB)
Not Specified
Occupational Exposure Limit (OEL)
Not Specified
Immediately Dangerous to Life or Health (IDLH)
Not Specified
Hazard Statements
H242, H400, H411Precautionary Statements
P210, P220, P234, P280, P370+P378, P403+P235, P411, P420, P501, P273, P391Safety Statements
S26, S36
6 verified suppliers offering 15 products for Butyl 4,4-bis(tert-butyldioxy)valerate (CAS 995-33-5). 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 |
|---|---|---|---|---|
| Anhui Changhe New Material Co., Ltd. | Bluerox BX-12 | 40% | Granular | In Development |
| Nouryon Chemicals International B.V. | Trigonox 17-40MB-GR | 40% | Granular | Imported |
| NOF CORPORATION | PERHEXA V | 90% | Liquid | In Production |
| Arkema Changshu site | LUPEROX 230XL40-SP | 40% | Powder | Imported |
| Arkema Changshu site | LUPEROX 230G40 | 40% | Granular | Imported |
| NOF CORPORATION | PERHEXA V-40 | 40% | Powder | In Production |
| NOF CORPORATION | PERHEXA V-40MB | 40% | Pellet or sheet | In Production |
| Arkema Changshu site | LUPEROX 230XL40 | 40% | Powder | Imported |
| Nouryon Chemicals International B.V. | Trigonox 17 | Liquid | Imported | |
| Nouryon Chemicals International B.V. | Trigonox 17-40B-GR | 40% | Granular | Imported |
| Nouryon Chemicals International B.V. | Trigonox 17-40B-PD | 40% | Powder | Imported |
| Nouryon Chemicals International B.V. | Trigonox 17-40B-PD-AM | 40% | Powder | Imported |
| Lanzhou Auxiliary Agent Plant Co., Ltd. | LQ-VA | - | In Production | |
| GO YEN CHEMICAL INDUSTRIAL CO., LTD. | GYC VA | 40% | - | In Production |
| Arkema Changshu site | LUPEROX 230G40 N E | 40% | Granules | Imported |
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