Pyridazin-4-ol

HCID 565900

Notes Reactions

Substructure search Find similar structures

Basic information

CAS: 20733-10-2
Standard SMILES: O=c1cc[nH]nc1
InChIKey: VHVUTJZQFZBIRR-UHFFFAOYSA-N
Molecular formula: C4H4N2O
Average molar mass: 96.09 g/mol
Monoisotopic mass: 96.03236276

Names & identifiers

Preferred name: Pyridazin-4-ol
IUPAC: 1H-pyridazin-4-one
English name: 4-HYDROXYPYRIDAZINE
Molecular formula: C4H4N2O
Molecular weight: 96.09

Names & synonyms

20733-10-2pyridazin-4-olRefChem:870540820-429-44-hydroxypyridazinePyridazin-4(1H)-one17417-57-14-pyridazinol1H-pyridazin-4-one4(1H)-PyridazinoneMFCD002339671,4-dihydropyridazin-4-one

Show more names

25g and 50g4-Hydroxypyridazin4(2H)-Pyridazinone4-Pyridazinol (6CI, 8CI, 9CI, ACI)Pyridazin-4-ol, 4-Hydroxy-1,2-diazine4-HYDROXYPYRIDAZINE ISO 9001：2015 REACH

1h-4-pyridazinone4(1H)-Pyridazinone #MFCD197038331,4-Dihydro-4-oxopyridazineA1JDYAMY3028Pyridazine-4-onepyridazine, 4-hydroxy-

Database identifiers

CAS: 20733-10-2
PubChem CID: 565900
DTXSID: DTXSID40902473
EC Number: 820-429-4
Nikkaji: J845.840E

Properties

Computed structural properties

XLogP: -0.1
Topological polar surface area: 41.5 Å²
Hydrogen bond donors: 1
Hydrogen bond acceptors: 3
Rotatable bonds: 0
Heavy atoms: 7
Formal charge: 0
Complexity: 137

Physicochemical properties

Boiling point: 315.9 · 315.9±15.0 °C(Predicted)
Density: 1.293 · 1.293±0.06 g/cm3(Predicted)
storage temp.: Sealed in dry,Room Temperature
pka: 3.56 · 3.56±0.18(Predicted)
Appearance: Off-white to light brown Solid
InChI: InChI=1S/C4H4N2O/c7-4-1-2-5-6-3-4/h1-3H,(H,5,7)
InChIKey: VHVUTJZQFZBIRR-UHFFFAOYSA-N
SMILES: C1=NN=CC=C1O
Symbol(GHS): 7 · GHS07
Signal word: Warning
Hazard statements: 335 · H335-H319-H302-H315
Precautionary statements: 264 · P264-P270-P301+P312-P330-P501-P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
HS Code: 2933998090 · 2933998090

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Warning

H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]

P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Hazard information

Hazard Classes and CategoriesAcute Tox. 4 (100%)

Safety data

hs_code: 2933998090
Signal word: Warning
Symbol(GHS): GHS07
Hazard statements: H335-H319-H302-H315
Precautionary statements: P264-P270-P301+P312-P330-P501-P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362

Chemistry & industry

Suppliers87 total

上海康恩博医药科技有限公司（科小研试剂）400-1388-521 17510465506 · [email protected]

武汉英诺医药科技有限公司+86-027-59232304 15387063101 · [email protected]

天津长江化学有限公司19129375004; 15321929114 · [email protected]

毕佳索（上海毕得医药科技股份有限公司）400-6005915 · [email protected]

陕西缔都新材料有限公司029-63373950 17392216152 · [email protected]

Related reactions

0 records

New reaction record

No reaction records under the current filter.

Compound notes

Loading…