1H-Pyrazol
Pyrazole
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Grundinformationen
- CAS
288-13-1- Standard-SMILES
c1cn[nH]c1- InChIKey
WTKZEGDFNFYCGP-UHFFFAOYSA-N- Summenformel
- C3H4N2
- Durchschnittliche Molmasse
- 68,08 g/mol
- Monoisotopische Masse
- 68,03744813
Überblick
1H-pyrazole is the 1H-tautomer of pyrazole. It is a conjugate base of a pyrazolium. It is a conjugate acid of a pyrazol-1-ide. It is a tautomer of a 3H-pyrazole and a 4H-pyrazole.
Namen und Bezeichner
- Bevorzugter Name
- Pyrazole
- IUPAC
- 1H-pyrazole
- Lokaler Name
- 1H-Pyrazol
- Englischer Name
- Pyrazole
- Summenformel
- C3H4N2
- Molmasse
- 68.08
Namen und Synonyme
pyrazole1H-Pyrazole288-13-11,2-diazolePyrazol1H-pyrazol3QD5KJZ7ZJDTXSID2059774NSC45410NSC-45410CHEBI:17241RefChem:6183
Weitere Namen anzeigen
Pyrrazoleα-yrromonazolePyrazole, pure, 98%Ryrazole1,2-DIAZOL
DTXCID4037873CHEBI:14973206-017-1MFCD00005234diazoleHpzEINECS 206-017-1UNII-3QD5KJZ7ZJ
Datenbank-Bezeichner
- CAS
288-13-1- PubChem CID
- 1048
- DTXSID
DTXSID2059774- ChEMBL
CHEMBL15967- ChEBI
CHEBI:17241- UNII
- 3QD5KJZ7ZJ
- EC Number
- 206-017-1
- Nikkaji
- J5.452F
Eigenschaften
Berechnete StruktureigenschaftenWird ergänzt
- XLogP
- 0,3
- Polarare Oberfläche (TPSA)
- 28,7 Ų
- H-Brücken-Donoren
- 1
- H-Brücken-Akzeptoren
- 1
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 5
- Formalladung
- 0
- Komplexität
- 28,1
Experimentelle und physikochemische Eigenschaften
Chemical ClassesNitrogen Compounds -> Pyrazoles
DrugsPharmaceuticals -> Listed in ZINC15
SpringerMaterials Properties15N nuclear magnetic resonance spectrum
LogP0.13
Vapor Pressure1.19 [mmHg]
Physical Description
Liquid
Solid with an odor like pyridine; [Merck Index] Colorless crystalline solid; [Sigma-Aldrich MSDS]
Dissociation Constants2.48 (at 25 °C)
Collision Cross Section125.47 Ų [M+H]+ [CCS Type: DT; Method: stepped-field]
Physikochemische Eigenschaften
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 0.4% (1 of 265) of reports.
Danger
H302 (98.9%): Harmful if swallowed [Warning Acute toxicity, oral]
P260, P261, P262, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P319, P321, P330, P332+P317, P337+P317, P361+P364, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 265 reports by companies from 21 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Gefahrenhinweise
Regulatory Information
Chemical: 1H-Pyrazole
1H-Pyrazole is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1H-Pyrazole are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 26-02-2019 https://echa.europa.eu/registration-dossier/-/registered-dossier/23403
Pyrazole: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Equivocal evidence of teratogenicity in mice; Teratogenic effects observed in intraperitoneal study of rats (route of administration not relevant to humans); [REPROTOX] Causes zonal hepatitis and coma in oral lethal-dose studies of rats; [RTECS] A skin and strong eye irritant; Harmful by ingestion; Teratogenicity observed in rats; [Sigma-Aldrich MSDS]
Hazard Classes and CategoriesAcute Tox. 4 (98.9%)
Toxikologische Informationen
Chemie und Industrie
Pharmakologische Informationen
MeSH Pharmacological ClassificationCompounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction.
Verwendung und Herstellung
UsesUsed as a chelating agent and in organic synthesis; [Merck Index]
U.S. Production2023: 75,000 - <500,000 lb
Consumer UsesEtching agent
Industry UsesOther
General Manufacturing Information
All Other Chemical Product and Preparation Manufacturing
1H-Pyrazole: ACTIVE
Anwendungen
VerwendenPyrazole is used in organic synthesis and asa chelating agent.
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