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structure of 18143-33-4

Chloromethyl(Dimethyl)Methoxysilane(CAS 18143-33-4)

CAS No.: 18143-33-4 Brand: MolBest
M. Ft.: C4H11ClOSi Cat. No: G3525274
M. Wt.: 138.67 MDL: No record
Storage: 2-8°C Use: For laboratory research use only
UN No.: UN 1993 3 /PG III
Purity Grade Package Stock Price Quantity
97%
Documents:COANMRGCMSSDS
RG 1G In Stock 9 USD
97%
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RG 5G In Stock 39 USD
97%
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RG 25G In Stock 161 USD
97%
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RG 100G In Stock 565 USD
97%
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RG 500G In Stock 2710 USD
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Physical and chemical properties of 18143-33-4

Boiling Point

103.6±13.0 °C at 760 mmHg

Density

0.9±0.1 g/cm3

Exact Mass

138.026764

Flash Point

16.0±12.0 °C

Index of Refraction

1.400

LogP

1.85

Melting Point

-100.15°C

Molecular Formula

C4H11ClOSi

Molecular Weight

138.668

PSA

9.23000

Vapour Pressure

37.0±0.2 mmHg at 25°C

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Spectrums of 18143-33-4

Attention:
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Physical sample testing spectrum (NMR) of 18143-33-4

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Signal Word

Danger

Hazard Statements

H226 Flammable liquid and vapor
H315 Causes skin irritation
H318 Causes serious eye damage
H335 May cause respiratory irritation

Safety Data Sheet

Q&A for CAS 18143-33-4

1. How can I verify product quality?
Every batch is tested in accordance with ISO 9001 requirements. We provide a Certificate of Analysis (COA), NMR spectrum, purity report, and test methods with each shipment. Third-party retesting is supported, and we offer a full refund if our data is incorrect.

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Orders are shipped on the second business day via FedEx, DHL, or UPS. International deliveries typically arrive within 7 business days (subject to customs clearance).

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Hazardous products are labeled and packaged in compliance with international regulations and shipped with an up-to-date Safety Data Sheet (SDS) to ensure safe and compliant transport.

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Items marked “In Stock” on our website are ready for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.

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We accept bank transfer (T/T), PayPal, and other methods. Credit terms may be available for qualified long-term partners.

Applications of 18143-33-4

Chloromethyl(dimethyl)methoxysilane has several applications across different fields:

  • Surface Modification: It is widely used in modifying surfaces to enhance adhesion properties in coatings and sealants.
  • Silicone Production: The compound serves as a precursor in synthesizing silicone polymers, which find use in various products such as sealants, adhesives, and elastomers.
  • Chemical Intermediates: Its reactive groups make it suitable for producing other organosilicon compounds used in specialty chemicals.

Retrosynthesis analysis of 18143-33-4


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