3-Bromophenylacetylene - ≥97% , CAS No.766-81-4

CAS: 766-81-4 Cat. No.: B304581 Molecular Weight: 181.03 EC Number: 676-126-0
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
MFCD03839983 | Q-102448 | AKOS005146038 | EN300-96217 | beta-bromophenylacetylene | DTXSID10467201 | TZDXNFAAJNEYIO-UHFFFAOYSA-N | A9718 | FT-0632913 | DS-13509 | SCHEMBL1786004 | 1-bromo-3-ethynylbenzene | 1-bromo-3-ethynyl-benzene | 3-bromo-1-ethynylben
Storage
Store at 2-8°C
Shipped In
Wet ice
Size
Status
Price
Qty
250mg
B304581-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$9.90
1g
B304581-1g
1
$10.90
5g
B304581-5g
2

$23.90

$35.90
Save $12.00 (33.43%)
25g
B304581-25g
2

$88.90

$133.90
Save $45.00 (33.61%)
100g
B304581-100g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$331.90

$497.90
Save $166.00 (33.34%)
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 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 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
MFCD03839983 | Q-102448 | AKOS005146038 | EN300-96217 | beta-bromophenylacetylene | DTXSID10467201 | TZDXNFAAJNEYIO-UHFFFAOYSA-N | A9718 | FT-0632913 | DS-13509 | SCHEMBL1786004 | 1-bromo-3-ethynylbenzene | 1-bromo-3-ethynyl-benzene | 3-bromo-1-ethynylben
Specifications & Purity
≥97%
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Pubchem Sid504766474
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504766474
Canonical SmilesC#CC1=CC(=CC=C1)Br
IUPAC Name1-bromo-3-ethynylbenzene
InChIKeyTZDXNFAAJNEYIO-UHFFFAOYSA-N
INCHI1S/C8H5Br/c1-2-7-4-3-5-8(9)6-7/h1,3-6H
Isomeric SMILES C#CC1=CC(=CC=C1)Br
Molecular Weight 181.03
Reaxy-Rn 2040367
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2040367&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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassHalobenzenes
Intermediate Tree Nodes Not available
Direct ParentBromobenzenes
Alternative Parents Aryl bromides  Acetylides  Organobromides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Bromobenzene - Aryl halide - Aryl bromide - Acetylide - Hydrocarbon derivative - Organobromide - Organohalogen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as bromobenzenes. These are organic compounds containing a bromine atom attached to a benzene ring.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

7 results found

Lot NumberCertificate TypeDateItem
H2527097Certificate of AnalysisSep 03, 2025 B304581
F2510027Certificate of AnalysisJun 28, 2025 B304581
I2126020Certificate of AnalysisJul 08, 2024 B304581
I2126021Certificate of AnalysisJul 08, 2024 B304581
I2126178Certificate of AnalysisJul 08, 2024 B304581
I2126179Certificate of AnalysisJul 08, 2024 B304581
I2126180Certificate of AnalysisJul 08, 2024 B304581
Chemical and Physical Properties
Refractive Index1.59
Flash Point(°C)86 °C
Boil Point(°C)211.8°C
Molecular Weight181.030 g/mol
XLogP32.900
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count0
Rotatable Bond Count1
Exact Mass179.957 Da
Monoisotopic Mass179.957 Da
Topological Polar Surface Area0.000 Ų
Heavy Atom Count9
Formal Charge0
Complexity131.000
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
Citations of This Product
References
1. Qingxia Zhu, Xiaowen Lu, Siqi Ji, Honghong Li, Jun Wang, Zhijun Li.  (2021)  Fully exposed cobalt nanoclusters anchored on nitrogen-doped carbon synthesized by a host-guest strategy for semi-hydrogenation of phenylacetylene.  JOURNAL OF CATALYSIS,      [PMID:] [10.1016/j.jcat.2021.11.021]
2. Zhijun Li, Qinghui Ren, Xuexia Wang, Wenxing Chen, Leipeng Leng, Mingyang Zhang, J. Hugh Horton, Bo Liu, Qian Xu, Wei Wu, Jun Wang.  (2021)  Highly Active and Stable Palladium Single-Atom Catalyst Achieved by a Thermal Atomization Strategy on an SBA-15 Molecular Sieve for Semi-Hydrogenation Reactions.  ACS Applied Materials & Interfaces,      [PMID:33412851] [10.1021/acsami.0c17570]
Solution Calculators
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