3,3,5,7,7-Pentamethyl-1,2,4-trioxepane (CAS 215877-64-8)
3,3,5,7,7-Pentamethyl-1,2,4-trioxepane (CAS 215877-64-8) is an organic peroxide compound with molecular formula C9H18O3 and molecular weight 174.24. Also known as PMTO. It typically appears in solid powder form.
3,3,5,7,7-Pentamethyl-1,2,4-trioxepane (CAS number: 215877-64-8) is an high-purity chemical raw material that is widely applied in the curing of synthetic resins and high-temperature crosslinking of elastomers, making it an industry-preferred additive. It is widely applied in PVC production, styrene polymerization, and modified plastic formulations. 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 1 product from 1 verified manufacturer.
CAS 215877-64-8 is also known as:
- PMTO
CAS Number
215877-64-8
Molecular Formula
C9H18O3
Molecular Weight
174.24
EINECS Number
455-560-2
MDL Number
MFCD00222049
BRN Number
8182994
Chemical Name
3,3,5,7,7-Pentamethyl-1,2,4-trioxepane
Last Updated
2/17/2025
Aliases
Appearance
White solid
Appearance State
Solid. Solubility information unavailable.
Color
Colorless
Odor
Faint odor
Form
Solid Powder
Melting Point
0-11
Boiling Point
175.2 (predicted)
Flash Point
48.4
Density
0.897
Vapor Density
无数据资料
Vapor Pressure
2.7 hPa @ 20°C
Refractive Index
1.395
LogP Value
2.4 @ 22 °C
Merck Index
Not Listed
Solubility
Partially miscible (20°C)
Water Solubility
partially miscible with water @ 20°C
Solubility Detail
Partially miscible with water (20°C), soluble in most organic solvents.
Storage Conditions
Store in a dry, well-ventilated place, away from heat or ignition sources, avoid direct sunlight.
InChI Key
PQRXWOSDTVDPMT-UHFFFAOYSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Warning
Hazard Symbols
O
Risk Codes
R7
UN Number
UN 3107
IARC Classification
Not Classified
WGK Germany
1
RTECS Number
-
Auto-ignition Temperature
test method N/A
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29319090
Occupational Exposure Band (OEB)
Not Specified
Occupational Exposure Limit (OEL)
Not Specified
Immediately Dangerous to Life or Health (IDLH)
Not Specified
Hazard Statements
H226,H242,H302,H313,H316,H412Precautionary Statements
P210,P220,P233,P234,P240,P241,P242,P243,P264,P270,P273,P280,P301+P312+P330,P303+P361+P353,P312,P332+P313,P370+P378,P403+P235,P410,P420,P501Safety Statements
S3/7, S14, S36/37/39
1 verified suppliers offering 1 products for 3,3,5,7,7-Pentamethyl-1,2,4-trioxepane (CAS 215877-64-8). 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 |
|---|---|---|---|---|
| Nouryon Chemicals International B.V. | Trigonox 311 | Liquid | Imported |
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