(5-Chloro-1-pentynyl)trimethylsilane

CAS 77113-48-5Cl(CH2)3C≡CSi(CH3)3Chemical Synthesis

(5-Chloro-1-pentynyl)trimethylsilane (CAS 77113-48-5), with the linear formula Cl(CH2)3C≡CSi(CH3)3 and a molecular weight of 174.74 g/mol, is a halogenated alkynyl silane. It serves as a valuable organic building block in chemical synthesis, particularly in reactions involving alkynyl and halogen functionalities. This compound is primarily utilised in research and development settings for the construction of complex organic molecules.

IUPAC: 1-Chloro-5-trimethylsilyl-4-pentyne

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(5-Chloro-1-pentynyl)trimethylsilane (Cl(CH2)3C≡CSi(CH3)3) — chemical structure, CAS 77113-48-5; Chemistry, fine chemical supplied by Tech Serve Solutions

AlkynylBuilding BlocksChemical SynthesisHalogenated HydrocarbonsOrganic Building Blocks

01 /Applications

Organic Synthesis Intermediate

This compound acts as a versatile building block in organic synthesis. Its unique combination of a terminal alkyne protected by a trimethylsilyl group and a terminal alkyl chloride allows for selective functionalization in multi-step synthetic routes.

Research and Development

Primarily used in laboratory settings for the exploration of new chemical transformations and the synthesis of novel compounds. It is suitable for researchers investigating organosilicon chemistry and halogenated organic compounds.

Material Science Precursor

May be employed as a precursor in the development of specialised polymers or materials requiring specific alkynyl or halogenated functionalities.

02 /Properties

Molecular weight	174.74
Linear formula	Cl(CH2)3C≡CSi(CH3)3
Assay	97%
Boiling point	75-77 °C/20.6 mmHg(lit.)
Density	0.977 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.4560(lit.)

03 /Safety & handling

Protective equipment	Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US)
Flash point	65 °C / 149 °F
Transport (UN / ADR)	NA 1993 / PGIII
Water hazard class (WGK, DE)	3

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

04 /Identifiers & registry

CAS number

77113-48-5

MDL number

MFCD00671353

PubChem substance

24881337

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 (5-Chloro-1-pentynyl)trimethylsilane used for?

(5-Chloro-1-pentynyl)trimethylsilane is primarily used as an organic building block in chemical synthesis and in research and development laboratories for creating complex organic molecules.

What is the CAS number and molecular formula?

The CAS number is 77113-48-5 and the linear molecular formula is Cl(CH2)3C≡CSi(CH3)3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies (5-Chloro-1-pentynyl)trimethylsilane with an assay of 97%. This is a technical/research grade chemical and is not represented as USP, BP, or EP.

What are the safety considerations when handling this chemical?

Handling requires appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, due to its flammability (flash point 65 °C) and potential hazards. Refer to the safety data sheet for detailed handling instructions and hazard information.

How is this product packed, shipped, and exported?

Products are carefully packed in compliance with international shipping regulations. Tech Serve Solutions is experienced in exporting fine chemicals globally.