3-Ethynyltoluene - ≥97% , CAS No.766-82-5

CAS: 766-82-5 Cat. No.: E107733 Formula: C9H8 Molecular Weight: 116.16 EC Number: 628-378-8
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
3'-METHYLPHENYL ACETYLENE | RENYIDZOAFFNHC-UHFFFAOYSA- | PS-4892 | EN300-103708 | Benzene,1-ethynyl-3-methyl- | m-Tolylacetylene | A9719 | 3-tolylacetylene | 3-Ethynyltoluene | InChI=1/C9H8/c1-3-9-6-4-5-8(2)7-9/h1,4-7H,2H3 | Q-102462 | 3-Ethynyltoluene, 9
Storage
Argon charged,Room temperature
Shipped In
Normal
★
Size
Germany (EU)
USA*
Price
Qty
1g
E107733-1g
—
5 In stock

€23.34

€35.49
Save €12.15 (34.23%)
5g
E107733-5g
—
In stock ≥10

€42.43

€64.13
Save €21.69 (33.83%)
25g
E107733-25g
—
1 In stock

€109.25

€163.92
Save €54.67 (33.35%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

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

🌡

Storage & shipping

Argon charged,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 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
3'-METHYLPHENYL ACETYLENE | RENYIDZOAFFNHC-UHFFFAOYSA- | PS-4892 | EN300-103708 | Benzene,1-ethynyl-3-methyl- | m-Tolylacetylene | A9719 | 3-tolylacetylene | 3-Ethynyltoluene | InChI=1/C9H8/c1-3-9-6-4-5-8(2)7-9/h1,4-7H,2H3 | Q-102462 | 3-Ethynyltoluene, 9
Specifications & Purity
≥97%
Storage
Argon charged,Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488187887
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488187887
Canonical SmilesCC1=CC(=CC=C1)C#C
IUPAC Name1-ethynyl-3-methylbenzene
InChIKeyRENYIDZOAFFNHC-UHFFFAOYSA-N
INCHI1S/C9H8/c1-3-9-6-4-5-8(2)7-9/h1,4-7H,2H3
Isomeric SMILES CC1=CC(=CC=C1)C#C
WGK Germany 3
UN Number 1993
Molecular Weight 116.16
Reaxy-Rn 2038007
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2038007&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
SubclassToluenes
Intermediate Tree Nodes Not available
Direct ParentToluenes
Alternative Parents Aromatic hydrocarbons  Acetylides  Acetylenes  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Toluene - Aromatic hydrocarbon - Acetylide - Unsaturated hydrocarbon - Acetylene - Hydrocarbon - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as toluenes. These are compounds containing a benzene ring which bears a methane group.
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.

10 results found

Lot NumberCertificate TypeDateItem
C23231190Certificate of AnalysisSep 01, 2026 E107733
C23231199Certificate of AnalysisSep 01, 2026 E107733
C23231200Certificate of AnalysisSep 01, 2026 E107733
C23231203Certificate of AnalysisSep 01, 2026 E107733
C23231205Certificate of AnalysisSep 01, 2026 E107733
C2323858Certificate of AnalysisSep 01, 2026 E107733
E2118026Certificate of AnalysisAug 03, 2026 E107733
G2419241Certificate of AnalysisApr 03, 2024 E107733
G2419242Certificate of AnalysisApr 03, 2024 E107733
H1822047Certificate of AnalysisJan 10, 2024 E107733
Chemical and Physical Properties
SensitivityAir Sensitive
Refractive Index1.544
Flash Point(°F)77 °F
Flash Point(°C)25 °C
Boil Point(°C)170-175°C
Molecular Weight116.160 g/mol
XLogP33.100
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count0
Rotatable Bond Count1
Exact Mass116.063 Da
Monoisotopic Mass116.063 Da
Topological Polar Surface Area0.000 Ų
Heavy Atom Count9
Formal Charge0
Complexity126.000
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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