1-Bromo-2-pentyne, 97%

Name: 1-Bromo-2-pentyne, 97%
Brand: Vaqora Chemicals
SKU: VQ-010354

About 1-Bromo-2-pentyne, 97%

1-Bromo-2-pentyne is a halogenated building block carrying the CAS registry number 16400-32-1 at a purity of 97%. Its molecular formula is C5H7Br and its molecular weight is 147.01 g/mol. Systematically, it is named 1-bromopent-2-yne. Common synonyms include 2-Pentynyl Bromide and 1-bromo-pent-2-yne.

The material typically appears as a colourless to white liquid. Key physical data: a boiling point of 93-94 °C and a density of 1.438 g/mL at 25 °C. Store in a cool, well-ventilated place, away from sources of ignition, with the container tightly sealed. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for cross-coupling substrates, alkylation reactions and organic synthesis. Typical end-use sectors are pharmaceutical manufacturing, academic and industrial research and agrochemical production.

Vaqora Chemicals supplies 1-Bromo-2-pentyne in 1 g and 5 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Cross-coupling substrates
Alkylation reactions
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	1-Bromo-2-pentyne, 97%
Catalogue No.	VQ-010354
CAS Number	16400-32-1
IUPAC name	1-bromopent-2-yne
Molecular formula	C₅H₇Br
Molecular weight	147.01 g/mol
Exact mass	145.9731
Purity / assay	97%
HSN code	29333990
InChIKey	VDHGRVFJBGRHMD-UHFFFAOYSA-N
SMILES	CCC#CCBr
PubChem CID	85399

Physical properties
Physical form	Liquid
Appearance	Colourless to white liquid
Boiling point	93-94 °C
Density	1.438 g/mL at 25 °C
LogP (XLogP3)	2
H-bond donors / acceptors	0 / 0
TPSA	0 Å²
Synonyms	2-Pentynyl Bromide, 1-bromo-pent-2-yne, 2-Pentyne, 1-bromo-, 1-Bromo-2-pentyne, 97%, 1-bromo-2-pentine, 2-Pentyn-1-yl bromide

Safety & hazard information (GHS)

Flammable

Harmful / irritant

Signal word: Warning

Hazard statements

H226Flammable liquid and vapor
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P210, P233, P240, P241, P242, P243, P261, P264, P264 + P265, P271, P280, P302 + P352, P303 + P361 + P353, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P370 + P378, P403 + P233, P403 + P235, P405

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 1-Bromo-2-pentyne, 97%?

The CAS Registry Number of 1-Bromo-2-pentyne, 97% is 16400-32-1. It is also known as 2-Pentynyl Bromide, 1-bromo-pent-2-yne, 2-Pentyne, 1-bromo-.

What is the molecular formula and molecular weight of 1-Bromo-2-pentyne, 97%?

1-Bromo-2-pentyne, 97% has the molecular formula C5H7Br and a molecular weight of 147.01 g/mol. Its IUPAC name is 1-bromopent-2-yne.

Which grade and pack sizes of 1-Bromo-2-pentyne, 97% can I order?

We supply 1-Bromo-2-pentyne, 97% in (97%) grade, in 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1-Bromo-2-pentyne, 97%?

Yes. Every lot of 1-Bromo-2-pentyne, 97% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 1-Bromo-2-pentyne, 97% be shipped internationally?

Yes. 1-Bromo-2-pentyne, 97% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.