1-Bromo-2-butyne

CAS 3355-28-0CH3C≡CCH2BrChemical Synthesis

1-Bromo-2-butyne (CAS: 3355-28-0), with the molecular formula CH3C≡CCH2Br and a molecular weight of 132.99 g/mol, is a halogenated hydrocarbon. This organic building block features a terminal alkyne and a primary bromide, making it a versatile intermediate in organic synthesis. It is employed in the construction of more complex molecules for research and development purposes.

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1-Bromo-2-butyne (CH3C≡CCH2Br) — chemical structure, CAS 3355-28-0; Chemistry, fine chemical supplied by Tech Serve Solutions

AlkynylBuilding BlocksChemical SynthesisHalogenated HydrocarbonsOrganic Building Blocks

01 /Applications

Organic Synthesis Intermediate

Serves as a valuable building block in the synthesis of diverse organic compounds. The presence of both an alkynyl group and a reactive alkyl bromide allows for various coupling and substitution reactions.

Research and Development

Utilised in laboratory settings for exploring new synthetic pathways and creating novel chemical entities. Its structure is conducive to introducing butyne fragments into target molecules.

Fine Chemical Manufacturing

A precursor or intermediate in the production of specialised fine chemicals. It can be incorporated into multi-step syntheses requiring alkynyl or brominated functionalities.

02 /Properties

Molecular weight	132.99
Linear formula	CH3C≡CCH2Br
Assay	99%
Boiling point	40-41 °C/20 mmHg(lit.)
Density	1.519 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.508(lit.)

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

Warning

Hazard statements

H226Flammable liquid and vapour

Protective equipment	Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point	36 °C / 96.8 °F
Transport (UN / ADR)	UN 1993C 3 / PGIII
Water hazard class (WGK, DE)	3
Risk statements (R)	10
Safety statements (S)	16

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

04 /Identifiers & registry

CAS number

3355-28-0

MDL number

MFCD00190233

Beilstein registry

605306

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 1-Bromo-2-butyne used for?

1-Bromo-2-butyne is primarily used as an intermediate in organic synthesis and for research and development purposes, enabling the creation of more complex organic molecules.

What is the CAS number and formula for 1-Bromo-2-butyne?

The CAS number for 1-Bromo-2-butyne is 3355-28-0, and its linear formula is CH3C≡CCH2Br.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 1-Bromo-2-butyne with an assay of 99%. This product is not represented as USP, BP, or EP grade.

How should 1-Bromo-2-butyne be handled safely?

1-Bromo-2-butyne is a flammable liquid and vapour (H226). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area, away from ignition sources.

How is 1-Bromo-2-butyne exported and shipped?

1-Bromo-2-butyne is classified under UN 1993, Class 3, Packing Group III for transport. TSS exports and ships this chemical according to international regulations.

How can I request a quote or sample for 1-Bromo-2-butyne?

To request a quote or sample of 1-Bromo-2-butyne, please contact our sales department via the website or by phone, providing your specific requirements.