2-ethynylaniline - ≥97% , CAS No.52670-38-9

CAS: 52670-38-9 Cat. No.: E176686 Molecular Weight: 117.151 EC Number: 628-712-2
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
A847480 | ALQPJHSFIXARGX-UHFFFAOYSA-N | 2-ethynylbenzenamine | 2-Aminophenylacetylene | 2-Ethynyl-phenylamine | EN300-743880 | 2-Ethynylaniline, 98% | BBL101153 | Benzenamine, 2-ethynyl- | DTXSID30399999 | 2-Ethynylaniline | N-(2-Chloromethyl)-N-methylpip
Storage
Argon charged,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
E176686-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$9.90

$14.90
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1g
E176686-1g
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.

$18.90

$28.90
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5g
E176686-5g
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.

$47.90

$71.90
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10g
E176686-10g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$94.90

$142.90
Save $48.00 (33.59%)
25g
E176686-25g
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.

$232.90

$349.90
Save $117.00 (33.44%)
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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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
A847480 | ALQPJHSFIXARGX-UHFFFAOYSA-N | 2-ethynylbenzenamine | 2-Aminophenylacetylene | 2-Ethynyl-phenylamine | EN300-743880 | 2-Ethynylaniline, 98% | BBL101153 | Benzenamine, 2-ethynyl- | DTXSID30399999 | 2-Ethynylaniline | N-(2-Chloromethyl)-N-methylpip
Specifications & Purity
≥97%
Storage
Argon charged, Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488194722
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488194722
Canonical SmilesC#CC1=CC=CC=C1N
IUPAC Name2-ethynylaniline
InChIKeyALQPJHSFIXARGX-UHFFFAOYSA-N
INCHI1S/C8H7N/c1-2-7-5-3-4-6-8(7)9/h1,3-6H,9H2
Isomeric SMILES C#CC1=CC=CC=C1N
WGK Germany 3
Molecular Weight 117.151
Reaxy-Rn 1306002
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1306002&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
SubclassAniline and substituted anilines
Intermediate Tree Nodes Not available
Direct ParentAniline and substituted anilines
Alternative Parents Acetylides  Primary amines  Organopnictogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Aniline or substituted anilines - Acetylide - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Primary amine - Organonitrogen compound - Amine - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as aniline and substituted anilines. These are organic compounds containing an aminobenzene moiety.
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.

15 results found

Lot NumberCertificate TypeDateItem
I2524388Certificate of AnalysisOct 15, 2025 E176686
I2525389Certificate of AnalysisOct 15, 2025 E176686
J2513769Certificate of AnalysisOct 15, 2025 E176686
J2513770Certificate of AnalysisOct 15, 2025 E176686
H2526456Certificate of AnalysisSep 08, 2025 E176686
H2526457Certificate of AnalysisSep 08, 2025 E176686
G2228783Certificate of AnalysisMay 13, 2025 E176686
G2228781Certificate of AnalysisMay 07, 2025 E176686
G2228782Certificate of AnalysisMay 07, 2025 E176686
K2110349Certificate of AnalysisAug 21, 2024 E176686
F1813129Certificate of AnalysisJan 08, 2024 E176686
F2427076Certificate of AnalysisJun 12, 2022 E176686
G2312218Certificate of AnalysisJun 12, 2022 E176686
G2312245Certificate of AnalysisJun 12, 2022 E176686
G2312261Certificate of AnalysisJun 12, 2022 E176686

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Chemical and Physical Properties
Sensitivityair sensitive
Refractive Index1.62
Flash Point(°F)208.4 °F
Flash Point(°C)98 °C
Boil Point(°C)229-230°C
Molecular Weight117.150 g/mol
XLogP31.500
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count1
Exact Mass117.058 Da
Monoisotopic Mass117.058 Da
Topological Polar Surface Area26.000 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. Min Zhong, Weichen Sheng, Jianfeng Chen, Han Zhang, Hongping Li, Kan Zhang.  (2025)  Synthesis and isomeric effect of ethynyl-containing sesamol-based monobenzoxazine resins.  REACTIVE & FUNCTIONAL POLYMERS,      [PMID:] [10.1016/j.reactfunctpolym.2025.106245]
Solution Calculators
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