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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 71208Generated: October 23, 2026

5-Methyl-8-hydroxyquinoline

Tiluquinol · NSC 130828 · 5-methylquinolin-8-ol · 5-Methyl-8-quinolinol · 5-Methyl-8-quinolionol · 8-Quinolinol, 5-methyl- · 8-Hydroxy-5-methylquinoline · 5-Methyl 8-Hydroxy Quinoleine

https://huagongshe.com/en/chemical/71208

5-Methyl-8-hydroxyquinoline molecular structure

Identifiers & Physical Properties

CAS No.5541-67-3
Molecular formulaC10H9NO
Average molar mass159.18 g/mol
Monoisotopic mass159.06841391 g/mol
SMILESCc1ccc(O)c2ncccc12
InChIKeyRPVGLMKJGQMQSN-UHFFFAOYSA-N
PubChem CID71208
ChEMBLCHEMBL1410814
ChEBICHEBI:134789
EC No.226-905-2
DTXSIDDTXSID3046401

Chemical & Physical Properties

XLogP2.4
Topological polar surface area33.1
Hydrogen bond donors1
Hydrogen bond acceptors2
Rotatable bonds0
Heavy atoms12
Formal charge0
Complexity160
LogP (partition coefficient)2.37
Melting point121-122 °C(Solv: water (7732-18-5)methanol (67-56-1))
Boiling point324.7±22.0 °C(Predicted)
Density1.210±0.06 g/cm3(Predicted)
Storage conditionsSealed in dry,Room Temperature
Physical stateSolid
pKa (acidity coefficient)5.33±0.10(Predicted)
AppearanceOff-white to light yellow Solid
FDA UNII813OG1OGVG
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH335-H319
GHS precautionary statementsP264-P280-P305+P351+P338-P337+P313P
Customs code2933499090

Safety & Regulations

GHS classificationWarningH319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]P261, P264+P265, P271, P280, P304+P340, P305+P351+P338, P319, P337+P317, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 2 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesEye Irrit. 2 (100%)
Customs code2933499090
Signal wordWarning
GHS pictogramGHS07
GHS hazard statementsH335-H319
GHS precautionary statementsP264-P280-P305+P351+P338-P337+P313P

Applications & Uses

Uses

5-methylquinolin-8-ol can be used as a chelating extractant.