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Halogenated HydrocarbonsAvailable on request

trans-1,4-Dibromo-2-butene, 98%

Synonyms: trans-1,4-Dibromo-2-Butene · (E)-1,4-Dibromo-2-butene · 2-Butene, 1,4-dibromo-, (2E)- · trans-1,4-Dibromobut-2-ene

CAS No.821-06-7
FormulaC4H6Br2
Mol. weight213.90
Catalogue No.VQ-010492
Purity99%
HSN29039990

trans-1,4-Dibromo-2-butene (CAS 821-06-7) – halogenated building block, 99%. C4H6Br2, MW 213.9. Order from Vaqora Chemicals with COA and global delivery.

Pack sizesPrice on quotation · bulk available
25 g
100 g
1 kg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About trans-1,4-Dibromo-2-butene, 98%

Vaqora Chemicals supplies trans-1,4-Dibromo-2-butene, a halogenated building block registered under CAS number 821-06-7 with a typical assay of 99%. Its molecular formula is C4H6Br2 and its molecular weight is 213.9 g/mol. Systematically, it is named (E)-1,4-dibromobut-2-ene. Alternative names: (E)-1,4-Dibromo-2-butene and 2-Butene, 1,4-dibromo-, (2E)-.

In its supplied form it is white to beige to brown powder or crystals or chunks. Key physical data: a melting point of 48-51 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include cross-coupling substrates, alkylation reactions, organic synthesis and pharmaceutical synthesis. Buyers come mainly from pharmaceutical manufacturing, academic and industrial research and agrochemical production.

Vaqora Chemicals supplies trans-1,4-Dibromo-2-butene in 25 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

  • Cross-coupling substrates
  • Alkylation reactions
  • Organic synthesis
  • Pharmaceutical synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product nametrans-1,4-Dibromo-2-butene, 98%
Catalogue No.VQ-010492
CAS Number821-06-7
IUPAC name(E)-1,4-dibromobut-2-ene
Molecular formulaC4H6Br2
Molecular weight213.9 g/mol
Exact mass213.8816
Purity / assay99%
HSN code29039990
InChIKeyRMXLHIUHKIVPAB-OWOJBTEDSA-N
SMILESC(/C=C/CBr)Br
PubChem CID641245
Physical properties
Physical formCrystalline
AppearanceWhite to beige to brown powder or crystals or chunks
Melting point48-51 °C
LogP (XLogP3)2.1
H-bond donors / acceptors0 / 0
TPSA0 Ų
Synonymstrans-1,4-Dibromo-2-Butene, (E)-1,4-Dibromo-2-butene, 2-Butene, 1,4-dibromo-, (2E)-, trans-1,4-Dibromobut-2-ene, 2-BUTENE, 1,4-DIBROMO-, trans-, Dibromobutene, 1,4-Dibromo-2-butene, (2E)-1,4-dibromobut-2-ene, (2E)-1,4-Dibromo-2-butene, TL 80, C4H6Br2, cis-1,4-dibromo-2-butene

Safety & hazard information (GHS)

GHS05 Corrosive
Corrosive
GHS06 Toxic
Toxic
GHS07 Harmful / irritant
Harmful / irritant
GHS08 Health hazard
Health hazard
GHS09 Environmental hazard
Environmental hazard

Signal word: Danger

Hazard statements

  • H301Toxic if swallowed
  • H311Toxic in contact with skin
  • H314Causes severe skin burns and eye damage
  • H317May cause an allergic skin reaction
  • H318Causes serious eye damage
  • H330Fatal if inhaled
  • H350May cause cancer
  • H411Toxic to aquatic life with long lasting effects

Precautionary statements: P203, P260, P261, P262, P264, P264 + P265, P270, P271, P272, P273, P280, P284, P301 + P316, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P318, P320, P321, P330

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

Documents

Frequently asked questions

What is the CAS number of trans-1,4-Dibromo-2-butene, 98%?

The CAS Registry Number of trans-1,4-Dibromo-2-butene, 98% is 821-06-7. It is also known as trans-1,4-Dibromo-2-Butene, (E)-1,4-Dibromo-2-butene, 2-Butene, 1,4-dibromo-, (2E)-.

What is the molecular formula and molecular weight of trans-1,4-Dibromo-2-butene, 98%?

trans-1,4-Dibromo-2-butene, 98% has the molecular formula C4H6Br2 and a molecular weight of 213.9 g/mol. Its IUPAC name is (E)-1,4-dibromobut-2-ene.

Which grade and pack sizes of trans-1,4-Dibromo-2-butene, 98% can I order?

We supply trans-1,4-Dibromo-2-butene, 98% in (99%) grade, in 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with trans-1,4-Dibromo-2-butene, 98%?

Yes. Every lot of trans-1,4-Dibromo-2-butene, 98% 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 trans-1,4-Dibromo-2-butene, 98% be shipped internationally?

Yes. trans-1,4-Dibromo-2-butene, 98% 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.

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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