4-ethynyl-1H-pyrazole - ≥97% , CAS No.57121-49-0

CAS: 57121-49-0 Cat. No.: E176824 Fórmula: C5H4N2 Peso molecular: 92.10 Número EC: 845-380-6
Disponible para pedir
GRADE & PURITY ≥97%
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
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Size
Alemania (EU)
USA*
Price
Qty
100mg
E176824-100mg
—
7 Disponible

14,66€

22,47€
Guardar 7,81 € (34.75%)
250mg
E176824-250mg
—
5 Disponible

28,55€

43,30€
Guardar 14,75 € (34.07%)
1g
E176824-1g
—
5 Disponible

89,29€

134,41€
Guardar 45,12 € (33.57%)
5g
E176824-5g
—
2 Disponible

246,35€

369,57€
Guardar 123,22 € (33.34%)
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

Store at 2-8°C,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

Especificaciones y pureza
≥97%
Condiciones de almacenamiento de almacenamiento
Store at 2-8°C,Argon charged
Enviado en
Wet ice
Este producto requiere envío en cadena de frío. Los servicios terrestres y otros servicios económicos no están disponibles.
Pureza
≥97%
Nombres e identificadores
Pubchem Sid504767560
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504767560
Sonrisas canónicasC#CC1=CNN=C1
IUPAC Name4-ethynyl-1H-pyrazole
InChIKeyUXZQDYUBSQMFIE-UHFFFAOYSA-N
INCHI1S/C5H4N2/c1-2-5-3-6-7-4-5/h1,3-4H,(H,6,7)
Isómeros SMILES C#CC1=CNN=C1
Peso molecular 92.10
Reaxy-Rn 6187183
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=6187183&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
SuperclassOrganoheterocyclic compounds
ClaseAzoles
SubclassPyrazoles
Intermediate Tree Nodes Not available
Direct ParentPyrazoles
Alternative Parents Heteroaromatic compounds  Azacyclic compounds  Acetylides  Organopnictogen compounds  Organonitrogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Heteroaromatic compound - Pyrazole - Acetylide - Azacycle - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organonitrogen compound - Aromatic heteromonocyclic compound
DescripciónThis compound belongs to the class of organic compounds known as pyrazoles. These are compounds containing a pyrazole ring, which is a five-member aromatic ring with two nitrogen atoms (at positions 1 and 2) and three carbon atoms.
External Descriptors Not available
Estructura 3D
Modelo de Estructura Química Interactiva





Mecanismos de acción
Certificados (CoA, COO, BSE/TSE y tabla de análisis)
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.

9 results found

Lot NumberCertificate TypeFechaArticulo
F2315907Certificate of AnalysisMar 18, 2026 E176824
F2315910Certificate of AnalysisMar 18, 2026 E176824
F2316667Certificate of AnalysisMar 18, 2026 E176824
F2316668Certificate of AnalysisMar 18, 2026 E176824
F2316669Certificate of AnalysisMar 18, 2026 E176824
F2316670Certificate of AnalysisMar 18, 2026 E176824
F2316671Certificate of AnalysisMar 18, 2026 E176824
F2316672Certificate of AnalysisMar 18, 2026 E176824
A2630167Certificate of AnalysisMay 15, 2023 E176824
Propiedades químicas y físicas
Peso molecular92.100 g/mol
XLogP31.300
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
Calculadoras de soluciones
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Preguntas frecuentes

What is the purity of this product?
This product is supplied at ≥97% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.
How should this product be stored?
Store at 2–8 °C under argon. It is supplied under an argon blanket; reseal under inert gas after each use.
How is this product shipped?
This product ships chilled on wet ice. Unpack on arrival and transfer it to the storage condition stated above.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 57121-49-0, the molecular formula is C5H4N2, and the molecular weight is 92.10 g/mol. InChIKey UXZQDYUBSQMFIE-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

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