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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 135513919Generated: October 23, 2026

8-(diethylamino)-3-hydroxy-12H-10-oxa-5-azatetraphen-12-one

9-(Diethylamino)-2-hydroxy-5H-benzo[a]phenoxazin-5-one · 9-Diethylamino-2-hydroxy-5H-benz(a)- · 9-diethylamino-2-hydroxy-5H-benz(A)-phenoxazin-5- · 9-(diethylamino)-12H-benzo[a]phenoxazine-1,5-dione · 9-diethylamino-1-hydroxy-5H-benz[a]phenoxazin-5-one · 9-(Diethylamino)-1-hydroxy-5H-benzo[a]phenoxazin-5-one · 5H-Benzo[a]phenoxazin-5-one, 9-(diethylamino)-1-hydroxy- · 8-(Diethylamino)-3-hydroxy-12H-10-oxa-5-azatetraphen-12-one

https://huagongshe.com/en/chemical/135513919

8-(diethylamino)-3-hydroxy-12H-10-oxa-5-azatetraphen-12-one molecular structure

Identifiers & Physical Properties

CAS No.188712-74-5
Molecular formulaC20H18N2O3
Average molar mass334.4 g/mol
SMILESCCN(CC)c1ccc2nc3c4c(O)cccc4c(=O)cc-3oc2c1
InChIKeyDEZZCLWULBPEKP-UHFFFAOYSA-N
PubChem CID135513919
EC No.850-655-9

Chemical & Physical Properties

XLogP3.4
Topological polar surface area62.1
Hydrogen bond donors1
Hydrogen bond acceptors5
Rotatable bonds3
Heavy atoms25
Formal charge0
Complexity596
Melting point>300 °C(Solv: methanol (67-56-1))
Boiling point532.7±50.0 °C(Predicted)
Density1.30±0.1 g/cm3(Predicted)
pKa (acidity coefficient)7.79±0.20(Predicted)
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH319-H302-H315-H335
GHS precautionary statementsP264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501

Safety & Regulations

GHS classificationWarningH302 (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 Classes and CategoriesAcute Tox. 4 (100%)
Signal wordWarning
GHS pictogramGHS07
GHS hazard statementsH319-H302-H315-H335
GHS precautionary statementsP264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501