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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 21643Generated: October 23, 2026

6-Amino-3-chloropyridazine

3-AMINO-6-CHLOROPYRIDAZINE · 6-AMino-3-chloropyridazine · 3-Amino-6-chloropyradazine · 6-Chloropyridazin-3-amine, 3-Amino-6-chloro-1,2-diazine · 3-Amino-6-chL · oropyridazine · BUTTPARK 44\01-57 · TIMTEC-BB SBB005487

https://huagongshe.com/en/chemical/21643

6-Amino-3-chloropyridazine molecular structure

Identifiers & Physical Properties

CAS No.5469-69-2
Molecular formulaC4H4ClN3
Average molar mass129.55 g/mol
Monoisotopic mass129.00937481 g/mol
SMILESNc1ccc(Cl)nn1
InChIKeyDTXVKPOKPFWSFF-UHFFFAOYSA-N
PubChem CID21643
ChEBICHEBI:169879
EC No.226-796-1
DTXSIDDTXSID7063928

Chemical & Physical Properties

XLogP0.3
Topological polar surface area51.8
Hydrogen bond donors1
Hydrogen bond acceptors3
Rotatable bonds0
Heavy atoms8
Formal charge0
Complexity77.7
SpringerMaterials PropertiesNuclear quadrupole resonance spectroscopy
Melting point210 °C
Boiling point363.2±22.0 °C(Predicted)
Density1.437±0.06 g/cm3(Predicted)
Storage conditionsKeep in dark place,Sealed in dry,Room Temperature
SolubilityDMSO (Slightly), Methanol (Slightly, Heated)
Physical stateSolid
pKa (acidity coefficient)4.06±0.10(Predicted)
ColorLight Brown to Brown
BRN110918
InChIInChI=1S/C4H4ClN3/c5-3-1-2-4(6)8-7-3/h1-2H,(H2,6,8)
InChIKeyDTXVKPOKPFWSFF-UHFFFAOYSA-N
SMILESC1(N)=NN=C(Cl)C=C1
CAS DataBase Reference5469-69-2(CAS DataBase Reference)
FDA UNIIIJS443SLZG
EPA Substance Registry System3-Pyridazinamine, 6-chloro- (5469-69-2)
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH302-H315-H319-H335
GHS precautionary statementsP280a-P304+P340-P405-P501a-P261-P305+P351+P338-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard symbolsXi,Xn
Risk statements (R)36/37/38-20/21/22-22
Safety statements (S)26-36/37/39-22-36
Water hazard class (WGK)3
Hazard NoteIrritant
TSCA inventory statusTSCA listed
Customs code29339900
REACH registrationsActive

Safety & Regulations

GHS classificationWarningH302 (80.7%): 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)Aggregated GHS information provided per 57 reports by companies from 14 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatory informationStatus: Active Update: 18-06-2020 https://echa.europa.eu/registration-dossier/-/registered-dossier/31269
Hazard Classes and CategoriesAcute Tox. 4 (80.7%)
Water hazard class (WGK)3
TSCA inventory statusTSCA listed
Customs code29339900
Risk statements (R)36/37/38-20/21/22-22
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXi,Xn
hazard_noteIrritant
Safety statements (S)26-36/37/39-22-36
GHS hazard statementsH302-H315-H319-H335
REACH registrationsActive
GHS precautionary statementsP280a-P304+P340-P405-P501a-P261-P305+P351+P338-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313

Applications & Uses

Uses

3-Amino-6-chloropyridazine is a biochemical reagent that can be used as a biological material or organic compound for life science related research.