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HCID 68153作成日:2026年10月23日

ピリダジン-3(2H)-オン

ピリダジン-3(2H)-オン · ピリダジン-3-オール · 2,3-ジヒドロピリダジン-3-オン · 3(2H)-ピリダジノン · 2H-ピリダジン-3-オン · 1,6-ジヒドロピリダジン-6-オン · ピリダジン-6(1H)-オン · Pyridazin-3(2H)-one

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

ピリダジン-3(2H)-オン の分子構造式

識別子と物理属性

CAS No.504-30-3
分子式C4H4N2O
平均分子量96.09 g/mol
単同位体質量96.03236276 g/mol
SMILESO=c1cccn[nH]1
InChIKeyAAILEWXSEQLMNI-UHFFFAOYSA-N
PubChem CID68153
ChEMBLCHEMBL3228881
EC No.628-659-5
DTXSIDDTXSID90198440
現地名ピリダジン-3(2H)-オン

化学・物理的性質

XLogP-0.7
極性表面積41.5
水素結合供与体数1
水素結合受容体数2
回転可能結合数0
重原子数7
形式電荷0
複雑度137
融点98-104 °C
沸点101°C/1.5mmHg(lit.)
密度1.478 g/cm3
貯蔵条件Keep in dark place,Sealed in dry,Room Temperature
溶解度DMSO(微量)、メタノール(微量)
外観・状態個体
pKa(酸解離定数)11.47±0.20(Predicted)
色ライトレッド~ライトブラウン
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 データベース504-30-3(CAS DataBase Reference)
NISTの化学物質情報3(2H)-pyridazinone(504-30-3)

安全性と法規制

GHS 分類WarningH315 (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.
規制情報Commission Regulation No 844/2012
Hazard Classes and CategoriesSkin Irrit. 2 (100%)Eye Irrit. 2 (100%)STOT SE 3 (97.7%)
水環境危害等級(WGK)3
税関コード29339900
危険文句(R)36/37/38
危険表示Xi
安全措置(S)26-36/37
危険等級Eye Irrit. 2Skin Irrit. 2STOT SE 3
貯蔵分類11 - Combustible Solids

用途

使用

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