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HCID 68153Erstellt: 23. Oktober 2026

3(2H)-Pyridazinone

Pyridazin-3(2H)-one · PYRIDAZIN-3-OL · 3-azineone · 3-Pyridazinol · 6-Pyridazinone · 3-Pyridazinone · Pyridazine-3-ol · 3-hydropyridazine

https://huagongshe.com/de/chemical/68153

Molekülstruktur von 3(2H)-Pyridazinone

Identifikatoren & physikalische Daten

CAS No.504-30-3
SummenformelC4H4N2O
Durchschnittliche Molmasse96,09 g/mol
Monoisotopische Masse96,03236276 g/mol
SMILESO=c1cccn[nH]1
InChIKeyAAILEWXSEQLMNI-UHFFFAOYSA-N
PubChem CID68153
ChEMBLCHEMBL3228881
EC No.628-659-5
DTXSIDDTXSID90198440

Chemische & physikalische Eigenschaften

XLogP-0,7
Polarare Oberfläche (TPSA)41,5
H-Brücken-Donoren1
H-Brücken-Akzeptoren2
Frei drehbare Bindungen0
Schwere Atome7
Formalladung0
Komplexität137
Schmelzpunkt98-104 °C
Siedepunkt101°C/1.5mmHg(lit.)
Dichte1.478 g/cm3
LagerbedingungenKeep in dark place,Sealed in dry,Room Temperature
LöslichkeitDMSO (Slightly), Methanol (Slightly)
AggregatzustandSolid
pKa (Säurekonstante)11.47±0.20(Predicted)
FarbeLight Red to Light Brown
BRN106974
InChIInChI=1S/C4H4N2O/c7-4-2-1-3-5-6-4/h1-3H,(H,6,7)
InChIKeyAAILEWXSEQLMNI-UHFFFAOYSA-N
SMILESC1(=O)NN=CC=C1
CAS Datenbank504-30-3(CAS DataBase Reference)
NIST chemische Informationen3(2H)-pyridazinone(504-30-3)

Sicherheit & Vorschriften

GHS-EinstufungWarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (97.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 43 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Regulatorische InformationenCommission Regulation No 844/2012
Hazard Classes and CategoriesSkin Irrit. 2 (100%)Eye Irrit. 2 (100%)STOT SE 3 (97.7%)
Wassergefährdungsklasse (WGK)3
Zollcode29339900
R-Sätze (R)36/37/38
GefahrensymboleXi
Sicherheitshinweise (S)26-36/37
Lagerklasse11 - Combustible Solids
GefahrenklasseEye Irrit. 2Skin Irrit. 2STOT SE 3

Anwendungen & Verwendung

Verwenden

Pyridazin-3(2H)-one can be used for anti-inflammatory and analgesic drug discovery.