2,4-Dichlorobenzoyl peroxide (CAS 133-14-2)
2,4-Dichlorobenzoyl peroxide (CAS 133-14-2) is an organic peroxide compound with molecular formula C14H6Cl4O4 and molecular weight 380.01. Also known as 2,4-DICHLOROBENZOYL PEROXIDE, BIS(2,4-DICHLOROBENZOYL) PEROXIDE, Di-2，4-dichlorobenzoyl peroxide. It typically appears in paste form.
2,4-Dichlorobenzoyl peroxide (CAS number: 133-14-2) is an high-quality chemical raw material that plays an irreplaceable crosslinking catalytic role in the fields of unsaturated polyester resins (UPR) and thermosetting plastics. It is frequently used in the crosslinking curing of automotive parts and high-end sealing materials. 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 11 products from 11 verified manufacturers.
CAS 133-14-2 is also known as:
- 2,4-DICHLOROBENZOYL PEROXIDE
- BIS(2,4-DICHLOROBENZOYL) PEROXIDE
- Di-2，4-dichlorobenzoyl peroxide
- bis(2,4-dichlorobenzoyl)-peroxid
- Bis-(2,4-dichlorbenzoyl)peroxid
- DCLBP
CAS Number
133-14-2
Molecular Formula
C14H6Cl4O4
Molecular Weight
380.01
EINECS Number
205-094-9
MDL Number
MFCD00045184
BRN Number
2211470
Chemical Name
2,4-Dichlorobenzoyl peroxide
Last Updated
7/22/2025
Aliases
Appearance
White paste with a pungent odor
Appearance State
Paste. Insoluble in water.
Color
White
Odor
Pungent odor
Form
Paste
Melting Point
55 (dec.)
Boiling Point
495.3 (predicted)
Flash Point
194.1
Density
1.26
Vapor Density
>1 (air=1)
Vapor Pressure
0.009 Pa @ 25°C
Refractive Index
1.5282 (est.)
LogP Value
6.0 @ 20 °C
Merck Index
2969
Solubility
Insoluble in water, slightly soluble in ethanol, soluble in acetone, readily soluble in benzene, chloroform.
Water Solubility
29.93 μg/L @ 25°C
Solubility Detail
Insoluble in water, slightly soluble in ethanol, soluble in acetone, readily soluble in benzene, chloroform.
Storage Conditions
Away from heat, sparks, and open flames. Store in a cool, dry, well-ventilated place.
InChI Key
WRXCBRHBHGNNQA-UHFFFAOYSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Danger
Hazard Symbols
E
Risk Codes
R2, R7
UN Number
UN 3106
IARC Classification
Group 3
WGK Germany
2
RTECS Number
-
Auto-ignition Temperature
ca. 125 (self-dec.)
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29163990
Occupational Exposure Band (OEB)
Not Specified
Occupational Exposure Limit (OEL)
Not Specified
Immediately Dangerous to Life or Health (IDLH)
Not Specified
Hazard Statements
H242,H317,H360Precautionary Statements
P210,P220,P234,P280,P370+P378,P403+P235,P411,P420,P501,P261,P272,P280,P302+P352,P333+P313,P321,P363,P501Safety Statements
S15, S17, S36/37/39
11 verified suppliers offering 11 products for 2,4-Dichlorobenzoyl peroxide (CAS 133-14-2). 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 |
|---|---|---|---|---|
| Ace Chemical Corp. | ACEOX DCLBP | 50% | Paste | In Production |
| Jiangsu Peixing Chemical co., Ltd. | DCBP | Liquid | In Production | |
| United Initiators GmbH | DCLBP-50-PSI | 50% | Paste | Imported |
| Anhui Changhe New Material Co., Ltd. | Bluerox BX 50 | 50% | Paste | In Development |
| Taian Trendsum Chemicals Co.,Ltd. | DCBP | 50% | - | In Production |
| Nouryon Chemicals International B.V. | Perkadox PD-50S-PS | 50% | Paste | In Production |
| GO YEN CHEMICAL INDUSTRIAL CO., LTD. | GYC CBPO | 50% | Paste | In Production |
| Lanzhou Auxiliary Agent Plant Co., Ltd. | LQ-CBPO | - | In Production | |
| Novichem Sp. z o.o. | NOVIPER DB 50 | 50% | Paste | In Production |
| Pergan GmbH | PEROXAN BD-Paste 50 SI | 50% | Paste | Imported |
| Chinasun Specialty Products Co.,Ltd. | Enox DCBP | 50% | Paste | In Production |
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