4-Methoxyphenylacetylene - ≥99% , CAS No.768-60-5

CAS: 768-60-5 Cat. No.: M111332 Molecular Weight: 132.16 Beilstein Registry Number: 6(4)4064 EC Number: 640-179-8
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
SY013463 | 4-methoxyphenylethyne | EN300-83248 | p-Methoxyphenylethyne | Z1080385508 | p-ethynylanisole | 1-Ethynyl-4-methoxybenzene # | 4-ethynyl anisole | 4'-Methoxyphenylacetylene | 4-Methoxyphenylacetylene | 4-methoxy-phenylacetylene | 4-Ethynylanisol
Storage
Argon charged,Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
1g
M111332-1g
3

$9.90

$14.90
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5g
M111332-5g
3

$19.90

$29.90
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25g
M111332-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$32.90

$49.90
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100g
M111332-100g
1

$130.90

$196.90
Save $66.00 (33.52%)
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Argon charged,Room temperature Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

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

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Literature proof

Cited in 6 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

4-Ethynylanisole forms the corresponding propargyl aldehyde in good yield directly from DMF-dimethyl acetal without the need for making an acetylide salt. 1,3-dipolar cycloaddition of acceptor-cyclopropylmethylsilanes affords functionalized cyclopentenes in good yields.
4-Ethynylanisole can be used as a building block in organic synthesis and also used in sonogashira coupling reactions. 
Application
1,3-dipolar cycloaddition of acceptor-cyclopropylmethylsilanes affords functionalized cyclopentenes in good yields.
4-Ethynylanisole was used:
in the synthesis of photoluminescent 1,2-dihydrophosphinines via a [4 + 2] cycloaddition
along with an arylboronic acid and sodium azide in a copper-catalyzed, three-component synthesis of trisubstituted 1,2,4-triazoles
in a study of a gold (III)-catalyzed hydroamination of alkynes leading to N-vinylindoles.
Forms the corresponding propargyl aldehyde in good yield directly from DMF-dimethyl acetal without the need for making an acetylide salt.

Specifications

Synonyms
SY013463 | 4-methoxyphenylethyne | EN300-83248 | p-Methoxyphenylethyne | Z1080385508 | p-ethynylanisole | 1-Ethynyl-4-methoxybenzene # | 4-ethynyl anisole | 4'-Methoxyphenylacetylene | 4-Methoxyphenylacetylene | 4-methoxy-phenylacetylene | 4-Ethynylanisol
Specifications & Purity
≥99%
Storage
Argon charged, Room temperature
Shipped In
Normal
Purity
≥99%
Names and Identifiers
Pubchem Sid504758109
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504758109
Canonical SmilesCOC1=CC=C(C=C1)C#C
IUPAC Name1-ethynyl-4-methoxybenzene
InChIKeyKBIAVTUACPKPFJ-UHFFFAOYSA-N
INCHI1S/C9H8O/c1-3-8-4-6-9(10-2)7-5-8/h1,4-7H,2H3
Isomeric SMILES COC1=CC=C(C=C1)C#C
WGK Germany 3
Molecular Weight 132.16
Beilstein 6(4)4064
Reaxy-Rn 742173
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=742173&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
ClassPhenol ethers
SubclassAnisoles
Intermediate Tree Nodes Not available
Direct ParentAnisoles
Alternative Parents Phenoxy compounds  Methoxybenzenes  Alkyl aryl ethers  Acetylides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Phenoxy compound - Methoxybenzene - Anisole - Alkyl aryl ether - Monocyclic benzene moiety - Acetylide - Ether - Organic oxygen compound - Hydrocarbon derivative - Organooxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as anisoles. These are organic compounds containing a methoxybenzene or a derivative thereof.
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.

17 results found

Lot NumberCertificate TypeDateItem
F2603042Certificate of AnalysisAug 22, 2025 M111332
I2503795Certificate of AnalysisAug 22, 2025 M111332
I2503794Certificate of AnalysisAug 22, 2025 M111332
I2503793Certificate of AnalysisAug 22, 2025 M111332
I2503792Certificate of AnalysisAug 22, 2025 M111332
K1904167Certificate of AnalysisFeb 08, 2025 M111332
D2508525Certificate of AnalysisJul 17, 2024 M111332
D2508751Certificate of AnalysisJul 17, 2024 M111332
D2522523Certificate of AnalysisJul 17, 2024 M111332
G2405223Certificate of AnalysisMar 23, 2024 M111332
L2318169Certificate of AnalysisDec 21, 2023 M111332
B2518067Certificate of AnalysisDec 21, 2023 M111332
H2127536Certificate of AnalysisJun 05, 2023 M111332
H2127351Certificate of AnalysisJun 05, 2023 M111332
H2127350Certificate of AnalysisJun 05, 2023 M111332
H2127349Certificate of AnalysisJun 05, 2023 M111332
G2106053Certificate of AnalysisApr 13, 2023 M111332

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Chemical and Physical Properties
SolubilityInsoluble in water. Soluble in chloroform, acetone, dichloromethane, and methanol
SensitivityLight sensitive;air sensitive;heat sensitive
Refractive Index1.564
Flash Point(°F)179.6 °F
Flash Point(°C)82 °C
Boil Point(°C)87-91 °C/11 mmHg
Melt Point(°C)28-29°C
Molecular Weight132.160 g/mol
XLogP32.500
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count1
Rotatable Bond Count2
Exact Mass132.058 Da
Monoisotopic Mass132.058 Da
Topological Polar Surface Area9.200 Ų
Heavy Atom Count10
Formal Charge0
Complexity134.000
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
Documents & Articles
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. Minkang Li, Lina Zhang, Zhongzheng Zhang, Jialin Shi, Yuefeng Liu, Jiansong Chen, Nannan Sun, Wei Wei.  (2021)  SiO2-Coated Ag Nanoparticles for Conversion of Terminal Alkynes to Propolic Acids via CO2 Insertion.  ACS Applied Nano Materials,      [PMID:] [10.1021/acsanm.1c01101]
3. Pan Jiang, Hongkun Li, Wei Liu, Yi Li, Baozong Li, Yonggang Yang.  (2021)  Silica covering driven intensity enhancement and handedness inversion of the CPL signals of the supramolecular assemblies.  NEW JOURNAL OF CHEMISTRY,  45  (20): (8986-8992).  [PMID:] [10.1039/D1NJ01327K]
4. 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]
5. Cheng Yuan, Qiqi Wu, Ke-Xin Xu, Xing-Shi Liu, Hao Lou, Yi-Tong Xu, Zheng Li, Yuanyuan Meng, Tan Li, Rui Ban, Guangxu Chen, Wei-Wei Zhao.  (2024)  Metal-organic polymer enables efficient organic photoelectrochemical transistor biosensing.  BIOSENSORS & BIOELECTRONICS,      [PMID:38688230] [10.1016/j.bios.2024.116346]
6. Qian Zhengyi, Han Guokang, Tan Yingjun, Ye Na, Wang Shuguang, Lin Zheng, Huang Qizheng, Gu Yu, Guo Hongyu, Liu Fei, Wang Kai, Li Lu, Shang Changshuai, Luo Mingchuan, Guo Shaojun.  (2025)  σ-π dative bond stabilizing copper active site drives CO2 electrocatalysis to hydrocarbon.  Nature Communications,      [PMID:41381480] [10.1038/s41467-025-66140-w]
Solution Calculators
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