2-Ethynyl-1,4-dimethylbenzene - ≥97% , CAS No.74331-70-7

CAS: 74331-70-7 Cat. No.: E469623 Molecular Weight: 130.19 EC Number: 624-583-1
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
MFCD05664209 | 2-Ethynyl-1,4-dimethylbenzene, 97% | 2-Ethynyl-1,4-dimethylbenzene | 2-ethynyl-1,4-dimethyl-benzene | FT-0641511 | AKOS010651618 | A838095 | DTXSID90571294 | EN300-1231824 | 2-Ethynyl-p-xylene
Storage
Store at 2-8°C,Protected from light,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
E469623-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$42.90
1g
E469623-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$104.90
5g
E469623-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$425.90
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,Protected from light,Argon charged 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
MFCD05664209 | 2-Ethynyl-1, 4-dimethylbenzene, 97% | 2-Ethynyl-1, 4-dimethylbenzene | 2-ethynyl-1, 4-dimethyl-benzene | FT-0641511 | AKOS010651618 | A838095 | DTXSID90571294 | EN300-1231824 | 2-Ethynyl-p-xylene
Specifications & Purity
≥97%
Storage
Store at 2-8°C, Protected from light, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Canonical SmilesCC1=CC(=C(C=C1)C)C#C
IUPAC Name2-ethynyl-1,4-dimethylbenzene
InChIKeyUNUIVBVNLZPXCR-UHFFFAOYSA-N
INCHI1S/C10H10/c1-4-10-7-8(2)5-6-9(10)3/h1,5-7H,2-3H3
Isomeric SMILES CC1=CC(=C(C=C1)C)C#C
WGK Germany 3
Molecular Weight 130.19
Reaxy-Rn 2552513
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2552513&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
SubclassXylenes
Intermediate Tree Nodes Not available
Direct Parentp-Xylenes
Alternative Parents Aromatic hydrocarbons  Acetylides  Acetylenes  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents P-xylene - Aromatic hydrocarbon - Acetylide - Unsaturated hydrocarbon - Acetylene - Hydrocarbon - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as p-xylenes. These are aromatic compounds that contain a p-xylene moiety, which is a monocyclic benzene carrying exactly two methyl groups at the 1- and 4-positions.
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:
Chemical and Physical Properties
Sensitivitylight sensitive
Refractive Indexn20/D 1.5410 (lit.)
Flash Point(°F)8.6 °F
Flash Point(°C)-13 °C
Boil Point(°C)193-194 °C (lit.)
Molecular Weight130.190 g/mol
XLogP32.900
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count0
Rotatable Bond Count1
Exact Mass130.078 Da
Monoisotopic Mass130.078 Da
Topological Polar Surface Area0.000 Ų
Heavy Atom Count10
Formal Charge0
Complexity149.000
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
Solution Calculators
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