4-ethynyl-1H-imidazole - ≥95% , CAS No.57121-48-9

CAS: 57121-48-9 Cat. No.: E1042084 Formula: C5H4N2 Molecular Weight: 92.1 EC Number: 883-633-2 PubChem CID: 18428363
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Storage
Room temperature
★
Size
Germany (EU)
USA*
Price
Qty
100mg
E1042084-100mg
Made to order · 8–12 wks
€226.39
250mg
E1042084-250mg
Made to order · 8–12 wks
€295.81
Enter a quantity for the sizes you want to add.
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships 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

Specifications & Purity
≥95%
Storage
Room temperature
Purity
≥95%
Names and Identifiers
Canonical Smiles
C#CC1=CN=CN1
IUPAC Name
5-ethynyl-1H-imidazole
InChIKey
BJXDBXQZKWQSBV-UHFFFAOYSA-N
INCHI
1S/C5H4N2/c1-2-5-3-6-4-7-5/h1,3-4H,(H,6,7)
Isomeric SMILES
C#CC1=CN=CN1
PubChem CID
18428363
Molecular Weight
92.1

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
SuperclassOrganoheterocyclic compounds
ClassAzoles
SubclassImidazoles
Intermediate Tree Nodes Not available
Direct ParentImidazoles
Alternative Parents Heteroaromatic compounds  Azacyclic compounds  Acetylides  Organonitrogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Heteroaromatic compound - Imidazole - Acetylide - Azacycle - Organic nitrogen compound - Hydrocarbon derivative - Organonitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as imidazoles. These are compounds containing an imidazole ring, which is an aromatic five-member ring with two nitrogen atoms at positions 1 and 3, and three carbon atoms.
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
Molecular Weight92.100 g/mol
XLogP30.300
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count1
Exact Mass92.0374 Da
Monoisotopic Mass92.0374 Da
Topological Polar Surface Area28.700 Ų
Heavy Atom Count7
Formal Charge0
Complexity99.900
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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