(4-Bromophenyl)acetylene - ≥97% , CAS No.766-96-1

CAS: 766-96-1 Cat. No.: B100857 Molecular Weight: 181.03 EC Number: 628-102-6
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
A9721 | MFCD00168822 | FT-0600534 | AKOS005146061 | para-bromophenylacetylene | AM20060726 | Q-102449 | SY019199 | 1-Bromo-4-ethynylbenzene, 97% | SCHEMBL391956 | (4-bromophenyl)acetylene | B3701 | (4-Bromphenyl)acetylene | OFAIGZWCDGNZGT-UHFFFAOYSA-N | E
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
B100857-250mg
3

$9.90

$14.90
Save $5.00 (33.56%)
1g
B100857-1g
5

$14.90

$22.90
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5g
B100857-5g
4

$17.90

$26.90
Save $9.00 (33.46%)
10g
B100857-10g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$21.90

$32.90
Save $11.00 (33.43%)
25g
B100857-25g
5

$51.90

$77.90
Save $26.00 (33.38%)
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Why this grade

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

🌡

Storage & shipping

Room temperature Ships Normal 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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
A9721 | MFCD00168822 | FT-0600534 | AKOS005146061 | para-bromophenylacetylene | AM20060726 | Q-102449 | SY019199 | 1-Bromo-4-ethynylbenzene, 97% | SCHEMBL391956 | (4-bromophenyl)acetylene | B3701 | (4-Bromphenyl)acetylene | OFAIGZWCDGNZGT-UHFFFAOYSA-N | E
Specifications & Purity
≥97%
Storage
Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488187888
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488187888
Canonical SmilesC#CC1=CC=C(C=C1)Br
IUPAC Name1-bromo-4-ethynylbenzene
InChIKeyLTLVZQZDXQWLHU-UHFFFAOYSA-N
INCHI1S/C8H5Br/c1-2-7-3-5-8(9)6-4-7/h1,3-6H
Isomeric SMILES C#CC1=CC=C(C=C1)Br
WGK Germany 2
UN Number 3077
Molecular Weight 181.03
Reaxy-Rn 1209726
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1209726&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.

13 results found

Lot NumberCertificate TypeDateItem
C2124127Certificate of AnalysisJun 15, 2026 B100857
C2124128Certificate of AnalysisJun 15, 2026 B100857
G2022139Certificate of AnalysisDec 22, 2025 B100857
B2221347Certificate of AnalysisAug 07, 2025 B100857
B2221351Certificate of AnalysisAug 07, 2025 B100857
B2221360Certificate of AnalysisAug 07, 2025 B100857
E1612042Certificate of AnalysisJul 10, 2025 B100857
E2324090Certificate of AnalysisFeb 11, 2025 B100857
E2324073Certificate of AnalysisFeb 11, 2025 B100857
C2308344Certificate of AnalysisDec 09, 2024 B100857
C2611226Certificate of AnalysisJul 03, 2024 B100857
C2611227Certificate of AnalysisJul 03, 2024 B100857
C2124129Certificate of AnalysisDec 15, 2022 B100857

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Chemical and Physical Properties
SolubilitySoluble in Toluene
Boil Point(°C)88-90°C(16mmHg)
Melt Point(°C)64-67°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
Complexity123.000
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]
Solution Calculators
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