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API Process Intermediates & Related Compounds

1-Bromo-2-butyne

Reference StandardIn stock

Buy 1-Bromo-2-butyne (CAS 3355-28-0) from Zemixal. Request a quote with price, lead time and documents. Purity 99%. Packs from 10 mg.

Pack sizes
1-Bromo-2-butyne chemical structure
CAS number3355-28-0
FormulaC4H5Br
Molar mass132.99 g/mol
Physical formSolid
Purity99%
InChIKeyLNNXOEHOXSYWLD-UHFFFAOYSA-N
IUPAC name1-bromobut-2-yne

About 1-Bromo-2-butyne

1-Bromo-2-butyne sits in our API Process Intermediates & Related Compounds section and ships worldwide from stock or short lead time. Key data (Reference Standard): CAS 3355-28-0, formula C4H5Br and molar mass 132.99 g/mol. It is handled as a solid.

Where it is used

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Safe handling

Classified under GHS with signal word Warning and hazard statements H226, H315, H319 and H335. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg, 100 mg and 250 mg. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

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Typical uses

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of 1-Bromo-2-butyne
Product name1-Bromo-2-butyne
Catalogue numberZX-011912
CAS number3355-28-0
IUPAC name1-bromobut-2-yne
Molecular formulaC4H5Br
Molar mass132.99 g/mol
Exact mass131.9575
GradeReference Standard
Purity / assay99%
Physical formSolid
XLogP31.6
H-bond donors / acceptors0 / 0
Topological polar surface area0 Ų
InChIKeyLNNXOEHOXSYWLD-UHFFFAOYSA-N
SMILESCC#CCBr
PubChem CID2756862
Synonyms1-(Bromomethyl)-2-methylacetylene, 2-Butyn-1-yl bromide, 2-Butynyl bromide, 4-Bromobut-2-yne, 2-Butyne, 1-bromo-, bromo-2-butyne, 1-bromo2-butyne, but-2-ynylbromide, l-bromo-2-butine, 1-bromo-2-butine, 4-bromo-2-butyne, but-2-ynyl bromide

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS02 Flammable
Flammable
GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • 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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 1-Bromo-2-butyne
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request
500 mgQuoted on request
1 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 1-Bromo-2-butyne

Which CAS number identifies 1-Bromo-2-butyne?
1-Bromo-2-butyne is registered under CAS 3355-28-0. You may also see it listed as 1-(Bromomethyl)-2-methylacetylene, 2-Butyn-1-yl bromide, 2-Butynyl bromide. Our catalogue number for this item is ZX-011912.
What are the formula and molar mass of 1-Bromo-2-butyne?
For 1-Bromo-2-butyne, its formula is C4H5Br and its molar mass is 132.99 g/mol. The systematic (IUPAC) name is 1-bromobut-2-yne. InChIKey LNNXOEHOXSYWLD-UHFFFAOYSA-N lets you match it in any structure database.
How is 1-Bromo-2-butyne used in pharmaceutical QC?
1-Bromo-2-butyne is a characterised reference material linked to Linagliptin. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for 1-Bromo-2-butyne?
This listing is Reference Standard grade with 99% purity. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 1-Bromo-2-butyne?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 1-Bromo-2-butyne to my country?
Yes. Because 1-Bromo-2-butyne is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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