Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 85358Generated: October 23, 2026

14H-anthra[2,1,9-mna]thioxanthen-14-one

C.I.68550 · Oil Orange 504 · Hostasol Red GG · Solvent Orange 63 · Solvent Orange GG · Fluorescent Red GG · Polysolve Orange 63 · FLUORESCENCE RED GG

https://huagongshe.com/en/chemical/85358

14H-anthra[2,1,9-mna]thioxanthen-14-one molecular structure

Identifiers & Physical Properties

CAS No.16294-75-0
Molecular formulaC23H12OS
Average molar mass336.4 g/mol
Monoisotopic mass336.060886 g/mol
SMILESO=c1c2ccccc2c2ccc3sc4ccccc4c4ccc1c2c34
InChIKeyNVNWZZLOQBHTCW-UHFFFAOYSA-N
PubChem CID85358
EC No.240-385-4
DTXSIDDTXSID0066032

Chemical & Physical Properties

XLogP6.1
Topological polar surface area42.4
Hydrogen bond donors0
Hydrogen bond acceptors2
Rotatable bonds0
Heavy atoms25
Formal charge0
Complexity558
Boiling point607.8±25.0 °C(Predicted)
Density1.417±0.06 g/cm3(Predicted)
Storage conditionsSealed in dry,Room Temperature
Physical statePowder
AppearanceBrown to red Solid
InChIInChI=1S/C23H12OS/c24-23-17-7-2-1-5-13(17)15-11-12-20-22-16(9-10-18(23)21(15)22)14-6-3-4-8-19(14)25-20/h1-12H
InChIKeyNVNWZZLOQBHTCW-UHFFFAOYSA-N
SMILESC12=CC=C3C4=C(C5=C(C=CC=C5)C3=O)C=CC(SC3=C1C=CC=C3)=C24
LogP (partition coefficient)3.6 at 24℃ and pH7
CAS DataBase Reference16294-75-0(CAS DataBase Reference)
EPA Substance Registry System14H-Anthra[2,1,9-mna]thioxanthen-14-one (16294-75-0)
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH302-H315-H319-H332-H335
GHS precautionary statementsP261-P280-P305+P351+P338
TSCA inventory statusTSCA listed
REACH registrationsActive

Safety & Regulations

GHS classificationThis chemical does not meet GHS hazard criteria for 98.9% (2205 of 2229) of all reports.Not ClassifiedAggregated GHS information provided per 2229 reports by companies from 6 notifications to the ECHA C&L Inventory.
Regulatory informationChemical: 14H-Anthra[2,1,9-mna]thioxanthen-14-oneREACH registered substance: 14H-anthra[2,1,9-mna]thioxanthen-14-one (EC: 240-385-4)14H-Anthra[2,1,9-mna]thioxanthen-14-one: Does not have an individual approval but may be used under an appropriate group standard
Hazard Classes and CategoriesNot Classified
TSCA inventory statusTSCA listed
Signal wordWarning
GHS pictogramGHS07
GHS hazard statementsH302-H315-H319-H332-H335
REACH registrationsActive
GHS precautionary statementsP261-P280-P305+P351+P338

Applications & Uses

Uses

Solvent Orange 63 is mainly used for coloring various plastics and their products, such as HIPS, ABS resin, polycarbonate, polyvinyl chloride, polystyrene and ordinary polystyrene, polymethyl methacrylate (plexiglass), polyester resin, etc. It can also be used for coloring cellulose acetate, nylon, polyester and laser devices.