Rhein

About This Item

Molecular Formula	C₁₅H₈O₆
CAS Number	478-43-3

FC-0906217

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Properties

Chemical Identifiers

IUPAC Name	4,5-dihydroxy-9,10-dioxoanthracene-2-carboxylic acid
SMILES	C1=CC2=C(C(=C1)O)C(=O)C3=C(C2=O)C=C(C=C3O)C(=O)O
InChI Key	FCDLCPWAQCPTKC-UHFFFAOYSA-N
InChI	InChI=1S/C15H8O6/c16-9-3-1-2-7-11(9)14(19)12-8(13(7)18)4-6(15(20)21)5-10(12)17/h1-5,16-17H,(H,20,21)

Physical Properties

Boiling Point	Sublimes (NTP, 1992)
Melting Point	610 °F (NTP, 1992)
Flash Point	329.4±26.6 °C
Density	1.7±0.1 g/cm3

Safety Information

Hazard Class

Warning

Flash Point

329.4±26.6 °C

Please refer to the Safety Data Sheet (SDS) for complete handling, storage, and disposal instructions. Follow all applicable regulations when working with this chemical reagent.