Tech Serve Solutions

Di-tert-butyldichlorosilane

CAS 18395-90-9[(CH3)3C]2SiCl2Chemical Synthesis

Di-tert-butyldichlorosilane (CAS 18395-90-9) is a silicon-based organochlorine compound with the linear formula [(CH3)3C]2SiCl2 and a molecular weight of 213.22. It is a reagent primarily utilized in chemical synthesis for the preparation of siliranes and as a protecting group for diols. Available from Tech Serve Solutions with an assay of 98%, it serves as a valuable building block in organic chemistry research and development.

IUPAC
DTBSCl2
Email us
Di-tert-butyldichlorosilane ([(CH3)3C]2SiCl2) — chemical structure, CAS 18395-90-9; Chemistry, fine chemical supplied by Tech Serve Solutions
Chemical SynthesisSilicon-BasedSynthetic Reagents
01 /Applications

Silirane Synthesis

Di-tert-butyldichlorosilane is a key precursor in the synthesis of siliranes, which are cyclic organosilicon compounds. This application leverages its reactive silicon-chlorine bonds to form new silicon-carbon bonds.

Diol Protection

This compound serves as an effective protecting reagent for diols in multi-step organic syntheses. It forms stable silyl ethers, preventing unwanted reactions at the hydroxyl groups during subsequent transformations.

Synthetic Reagent

As a versatile synthetic reagent, Di-tert-butyldichlorosilane finds broad utility in laboratory settings for constructing complex silicon-containing molecules. Its structure allows for specific derivatization strategies.

02 /Properties
Molecular weight213.22
Linear formula[(CH3)3C]2SiCl2
Assay98%
Boiling point190 °C/729 mmHg(lit.)
Density1.009 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.457(lit.)
Storage temperature2-8°C
Melting point−15 °C(lit.)
ApplicationReagent used for preparing siliranes1 and protecting diols.2
03 /Safety & handling
GHS hazard pictogram: Corrosive (GHS05)
Corrosive
Danger

Hazard statements

  • H314Causes severe skin burns and eye damage

Precautionary statements

  • P280Wear protective gloves, clothing and eye/face protection
  • P305IF IN EYES
  • P310Immediately call a POISON CENTER or doctor
Protective equipmentFaceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Transport (UN / ADR)UN 2987 8 / PGII
Water hazard class (WGK, DE)3
Hazard codes (EU)C
Risk statements (R)34
Safety statements (S)26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
18395-90-9
MDL number
MFCD00008796
PubChem substance
24857284
Beilstein registry
1739236
05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Di-tert-butyldichlorosilane used for?

+

Di-tert-butyldichlorosilane is used as a reagent for preparing siliranes and for protecting diols in chemical synthesis.

What is the CAS number and formula for Di-tert-butyldichlorosilane?

+

The CAS number is 18395-90-9 and the linear formula is [(CH3)3C]2SiCl2.

What grade and purity does Tech Serve Solutions supply?

+

Tech Serve Solutions supplies Di-tert-butyldichlorosilane with an assay of 98%. This product is not represented as USP, BP, or EP grade.

What are the safety and handling precautions for Di-tert-butyldichlorosilane?

+

Di-tert-butyldichlorosilane is classified as Danger, causing severe skin burns and eye damage (H314). Appropriate personal protective equipment, including face shields, gloves, and respirators, must be used. Handle in a well-ventilated area and follow all safety recommendations.

How is Di-tert-butyldichlorosilane shipped and exported?

+

Di-tert-butyldichlorosilane is shipped and exported under UN 2987, Class 8, Packing Group II, indicating it is a corrosive material. TSS ensures compliance with all transportation regulations for global export.

How can I request a quote or sample of Di-tert-butyldichlorosilane?

+

To request a quote or a sample of Di-tert-butyldichlorosilane, please contact our sales department through the website or by phone.

Need Di-tert-butyldichlorosilane in a specific grade or volume?