Pyrazole

HCID 178946326CAS 51038-79-0

Grundinformationen

Standard-SMILES
c1cn[nH]c1
InChIKey
WTKZEGDFNFYCGP-UHFFFAOYSA-N
Summenformel
C3H4N2
Durchschnittliche Molmasse
68,08 g/mol

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
Englischer Name
1H-Pyrazole-3,4,5-d3
Summenformel
C3H4N2
Molmasse
68.08

Namen und Synonyme

pyrazole1H-Pyrazole288-13-11,2-diazolePyrazol1H-pyrazol3QD5KJZ7ZJDTXSID2059774NSC45410NSC-45410CHEBI:17241RefChem:6183
Weitere Namen anzeigen
[2H3]-1H-Pyrazole1H-Pyrazole-3,4,5-d33,4,5-trideuterio-1H-pyrazole
DTXCID4037873CHEBI:14973206-017-1MFCD00005234diazoleHpzEINECS 206-017-1UNII-3QD5KJZ7ZJ

Datenbank-Bezeichner

CAS
51038-79-0
ChEMBL
CHEMBL15967
ChEBI
CHEBI:17241
UNII
3QD5KJZ7ZJ
EC Number
206-017-1
Nikkaji
J5.452F

Eigenschaften

Berechnete Struktureigenschaften

XLogP
0,3
Polarare Oberfläche (TPSA)
28,7 Ų
H-Brücken-Donoren
1
H-Brücken-Akzeptoren
1
Frei drehbare Bindungen
0
Schwere Atome
5

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 · 2 Einträge

Liquid

Solid with an odor like pyridine; [Merck Index] Colorless crystalline solid; [Sigma-Aldrich MSDS]

Physikochemische Eigenschaften

Schmelzpunkt
66 · 66-69°C
storage temp.
Room Temperature
Löslichkeit
Methanol (Slightly), Water (Slightly)
Aggregatzustand
Solid
Farbe
White to Off-White

Sicherheit und Regulatorisches

GHS-Klassifizierung

GHS Classification · 5 Einträge

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 · 4 Einträge

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 · 1 Eintrag

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

Adverse EffectsOccupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.

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 · 2 Einträge

All Other Chemical Product and Preparation Manufacturing

1H-Pyrazole: ACTIVE

Anwendungen

Verwenden1H-Pyrazole-3,4,5-d3 is the labeled analogue of 1H-Pyrazole (P842195). 1H-Pyrazole has been used in many organic synthesis.

Vor- und nachgelagerte Produkte

Vorgelagerte Rohstoffe

Anbieter8 Anbieter

安耐吉化学&3A(安徽泽升科技有限公司)021-58432009 400-005-6266 · [email protected]
康姆芘法思(上海)生物科技有限公司021-65232103 17602124823 · [email protected]
艾吉析科技(上海)有限公司17721401538;17717235263 17721401538 · [email protected]
康姆芘法思(上海)生物科技有限公司021-65232103 17602124823 · [email protected]
深圳聚合生化科技有限公司+86-400-002-6226 · [email protected]

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