3-Chloropropyltrimethoxysilane
Synonym(s):(3-Chloropropyl)trimethoxysilane;CPTMO;3-(Chloropropyl)-trimethoxysilane;3-(Trimethoxysilyl)propyl chloride;δ-Chloropropyltrimethoxysilane
- CAS NO.：2530-87-2
- Empirical Formula: C6H15ClO3Si
- Molecular Weight: 198.72
- MDL number: MFCD00000997
- EINECS: 219-787-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:26:12
What is 3-Chloropropyltrimethoxysilane?
Description
(3-Chloropropyl)trimethoxysilane is a silane coupling agent that is commonly used in the field of chemistry. It is a colorless and transparent liquid that has a strong odor. It is used as a coupling agent in the polymer industry to improve the adhesion between two substrates. It is also a starting material for synthesizing various compounds, such as surfactants, organosilanes, and other functional molecules.
Chemical properties
Colorless transparent liquid
The Uses of 3-Chloropropyltrimethoxysilane
(3-Chloropropyl)trimethoxysilane is a good coupling agent for epoxy resins to glass in laminates.
The Uses of 3-Chloropropyltrimethoxysilane
(3-Chloropropyl)trimethoxysilane may be used in the synthesis of octakis(3-chloropropyl)octasilsesquioxane.{35}
General Description
(3-Chloropropyl)trimethoxysilane (CPTMS) is an organo-silane which forms a self-assembled monolayer (SAMs) that facilitates the surface modification of different bio-and nano- materials.
Hazard
A poison by ingestion and skin contact.
Flammability and Explosibility
Not classified
Properties of 3-Chloropropyltrimethoxysilane
| Melting point: | -50°C |
| Boiling point: | 195 °C750 mm Hg(lit.) |
| Density | 1.09 g/mL at 25 °C(lit.) |
| vapor pressure | <5 hPa (20 °C) |
| refractive index | n |
| Flash point: | 136 °F |
| storage temp. | Store below +30°C. |
| solubility | Miscible with organic solvents. |
| form | Liquid |
| pka | 10[at 20 ℃] |
| Specific Gravity | 1.077 |
| color | Clear colorless to slightly yellow |
| explosive limit | 5.5-44%(V) |
| Water Solubility | Hydrolyzes in water. |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 969627 |
| Stability: | Stable, but air and moisture sensitive. Incompatible with water, moisture, strong oxidizing agents, air. Store under an inert and dry atmosphere. |
| CAS DataBase Reference | 2530-87-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Silane, (3-chloropropyl)trimethoxy-(2530-87-2) |
| EPA Substance Registry System | (3-Chloropropyl)trimethoxysilane (2530-87-2) |
Safety information for 3-Chloropropyltrimethoxysilane
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H227:Flammable liquids H313:Acute toxicity,dermal H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 3-Chloropropyltrimethoxysilane
| InChIKey | OXYZDRAJMHGSMW-UHFFFAOYSA-N |
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