Cinnamic acid

About This Item

Molecular Formula	C₉H₈O₂
CAS Number	621-82-9
Appearance	Solid with a honey floral odor; [Merck Index] White crystalline solid; [Alfa Aesar MSDS]

FC-0336644

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Properties

Chemical Identifiers

IUPAC Name	(E)-3-phenylprop-2-enoic acid
SMILES	C1=CC=C(C=C1)/C=C/C(=O)O
InChI Key	WBYWAXJHAXSJNI-VOTSOKGWSA-N
InChI	InChI=1S/C9H8O2/c10-9(11)7-6-8-4-2-1-3-5-8/h1-7H,(H,10,11)/b7-6+

Physical Properties

Boiling Point	298.00 to 300.00 °C. @ 760.00 mm Hg
Melting Point	133 °C
Flash Point	189.5±9.6 °C
Density	1.2±0.1 g/cm3

Safety Information

Hazard Class

Warning

Flash Point

189.5±9.6 °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.