Cas no 18719-27-2 (5-bromopent-2-yne)

5-Bromopent-2-yne is a brominated alkyne compound with the molecular formula C?H?Br. It features a terminal alkyne group and a bromine substituent, making it a versatile intermediate in organic synthesis. The compound is particularly useful in cross-coupling reactions, such as Sonogashira and Heck couplings, due to its reactive bromine and alkyne functionalities. Its structure allows for selective functionalization, enabling the construction of complex molecular frameworks. 5-Bromopent-2-yne is also employed in the synthesis of pharmaceuticals, agrochemicals, and specialty materials. The compound's stability and reactivity under controlled conditions make it a valuable reagent in academic and industrial research applications. Proper handling and storage are recommended due to its potential sensitivity.
5-bromopent-2-yne structure
5-bromopent-2-yne structure
Product Name:5-bromopent-2-yne
CAS No:18719-27-2
MF:C5H7Br
MW:147.013080835342
CID:123160
PubChem ID:12476205
Update Time:2025-06-08

5-bromopent-2-yne Chemical and Physical Properties

Names and Identifiers

    • 2-Pentyne, 5-bromo-
    • 3-Pentynyl bromide
    • 5-bromopent-2-yne
    • 1-BROMO-3-PENTYNE
    • 1-bromopent-3-yne
    • 2-Pentyne,5-bromo
    • 3-Pentyn-1-yl bromide
    • 5-Bromo-2-pentyne
    • 5-bromo-pent-2-yne
    • 5-Brom-pent-2-in
    • 5-pentynyl bromide
    • Inchi： 1S/C5H7Br/c1-2-3-4-5-6/h4-5H2,1H3
    • InChI Key： XXTLMXOGRBXMQF-UHFFFAOYSA-N
    • SMILES： BrCCC#CC

Computed Properties

  • Exact Mass: 145.97300

Experimental Properties

  • PSA: 0.00000
  • LogP: 1.79470

5-bromopent-2-yne Customs Data

  • HS CODE：2903399090
  • Customs Data：

    China Customs Code:

    2903399090

    Overview:

    2903399090. Fluorination of other acyclic hydrocarbons\Brominated or iodinated derivatives. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:5.5%. general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to

    Summary:

    2903399090. brominated,fluorinated or iodinated derivatives of acyclic hydrocarbons. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

5-bromopent-2-yne Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
TRC
B426025-10mg
5-bromopent-2-yne
 18719-27-2
10mg
 $ 50.00 2022-06-07
TRC
B426025-50mg
5-bromopent-2-yne
 18719-27-2
50mg
 $ 185.00 2022-06-07
TRC
B426025-100mg
5-bromopent-2-yne
 18719-27-2
100mg
 $ 295.00 2022-06-07
Ambeed
A1036473-1g
5-Bromopent-2-yne
 18719-27-2 95%
1g
 $978.0 2024-07-28
A2B Chem LLC
AE93937-10g
3-Pentynyl bromide
 18719-27-2 95%
10g
 $3525.00 2024-04-20
A2B Chem LLC
AE93937-50mg
3-Pentynyl bromide
 18719-27-2 95%
50mg
 $224.00 2024-04-20
A2B Chem LLC
AE93937-100mg
3-Pentynyl bromide
 18719-27-2 95%
100mg
 $318.00 2024-04-20
A2B Chem LLC
AE93937-250mg
3-Pentynyl bromide
 18719-27-2 95%
250mg
 $439.00 2024-04-20
A2B Chem LLC
AE93937-500mg
3-Pentynyl bromide
 18719-27-2 95%
500mg
 $668.00 2024-04-20
A2B Chem LLC
AE93937-1g
3-Pentynyl bromide
 18719-27-2 95%
1g
 $846.00 2024-04-20

5-bromopent-2-yne Suppliers

Amadis Chemical Company Limited
Gold Member
Audited Supplier Audited Supplier
(CAS:18719-27-2)5-bromopent-2-yne
Order Number:A4141
Stock Status:in Stock
Quantity:1g
Purity:99%
Pricing Information Last Updated:Monday, 2 September 2024 16:03
Price ($):880.0

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Recommended suppliers
Amadis Chemical Company Limited
(CAS:18719-27-2)5-bromopent-2-yne
A4141
Purity:99%
Quantity:1g
Price ($):880.0
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