2-Butyne - ≥97% , CAS No.503-17-3

CAS: 503-17-3 Cat. No.: B153027 Formula: C4H6 Molecular Weight: 54.09 EC Number: 207-962-2
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
Dimethylacetylene | 2-BUTINE | DTXSID3060116 | AKOS015841146 | UN1144 | UN-1144 | MFCD00009275 | Crotonylene | UN 1144 | But-2-yne | LKE6D3018E | UNII-LKE6D3018E | dimethyl acetylene | CHEMBL119108
Storage
Store at 2-8°C
Shipped In
Wet ice,FedEx DG Service
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Size
Germany (EU)
USA*
Price
Qty
1g
B153027-1g
—
1 In stock
€25.95
5g
B153027-5g
—
1 In stock
€52.85
25g
B153027-25g
—
1 In stock
€347.01
Enter a quantity for the sizes you want to add.
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice,FedEx DG Service Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

The ion-molecule reaction of the aromatic distonic N-methyl-pyridinium-4-yl radical cation with 2-butyne has been investigated using ion trap mass spectrometry
2-Butyne has been used in preparation of THF-free metallacyclobutene complexe

Application:

2-Butyne has been used in preparation of THF-free metallacyclobutene complexes.

Specifications

Synonyms
Dimethylacetylene | 2-BUTINE | DTXSID3060116 | AKOS015841146 | UN1144 | UN-1144 | MFCD00009275 | Crotonylene | UN 1144 | But-2-yne | LKE6D3018E | UNII-LKE6D3018E | dimethyl acetylene | CHEMBL119108
Specifications & Purity
≥97%
Storage
Store at 2-8°C
Shipped In
Wet ice,FedEx DG Service
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Pubchem Sid
Canonical Smiles
CC#CC
IUPAC Name
but-2-yne
InChIKey
XNMQEEKYCVKGBD-UHFFFAOYSA-N
INCHI
1S/C4H6/c1-3-4-2/h1-2H3
Isomeric SMILES
CC#CC
WGK Germany
3
UN Number
1144
Packing Group
I
Molecular Weight
54.09
Reaxy-Rn
1361340
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1361340&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassHydrocarbons
ClassUnsaturated hydrocarbons
SubclassAcetylenes
Intermediate Tree Nodes Acyclic acetylenes - Alkynes
Direct ParentTerminal alkynes
Alternative Parents Unsaturated aliphatic hydrocarbons  
Molecular FrameworkAliphatic acyclic compounds
Substituents Monosubstituted alkyne - Unsaturated aliphatic hydrocarbon - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as terminal alkynes. These are alkynes featuring a carbon substituent on one acetylenic carbon, and a hydrogen on the other carbon.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

26 results found

Lot NumberCertificate TypeDateItem
K2406300Certificate of AnalysisSep 11, 2024 B153027
K2406299Certificate of AnalysisSep 11, 2024 B153027
K2406298Certificate of AnalysisSep 11, 2024 B153027
D2613049Certificate of AnalysisSep 11, 2024 B153027
D2613050Certificate of AnalysisSep 11, 2024 B153027
C2408267Certificate of AnalysisJan 23, 2024 B153027
C2408268Certificate of AnalysisJan 23, 2024 B153027
C2408412Certificate of AnalysisJan 23, 2024 B153027
L2308240Certificate of AnalysisDec 02, 2023 B153027
L2308191Certificate of AnalysisDec 02, 2023 B153027
L2308241Certificate of AnalysisDec 02, 2023 B153027
L2308242Certificate of AnalysisDec 02, 2023 B153027
D2428036Certificate of AnalysisDec 02, 2023 B153027
L2308243Certificate of AnalysisDec 02, 2023 B153027
L2308244Certificate of AnalysisDec 02, 2023 B153027
D2304414Certificate of AnalysisFeb 11, 2023 B153027
D2304413Certificate of AnalysisFeb 11, 2023 B153027
D2304412Certificate of AnalysisFeb 11, 2023 B153027
L2215003Certificate of AnalysisDec 05, 2022 B153027
L2215040Certificate of AnalysisDec 05, 2022 B153027
L2215061Certificate of AnalysisDec 05, 2022 B153027
K2214115Certificate of AnalysisNov 15, 2022 B153027
A2208152Certificate of AnalysisDec 20, 2021 B153027
K2210224Certificate of AnalysisDec 20, 2021 B153027
A2208340Certificate of AnalysisDec 20, 2021 B153027
A2208298Certificate of AnalysisDec 20, 2021 B153027
Chemical and Physical Properties
SolubilityNot miscible in water.
SensitivityLight sensitive;Heat sensitive
Refractive Index1.39
Flash Point(°F)-56°F
Flash Point(°C)-49 ℃
Boil Point(°C)27 °C
Melt Point(°C)-32°C
Molecular Weight54.090 g/mol
XLogP31.500
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count0
Rotatable Bond Count0
Exact Mass54.047 Da
Monoisotopic Mass54.047 Da
Topological Polar Surface Area0.000 Ų
Heavy Atom Count4
Formal Charge0
Complexity42.900
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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