Maleic Acid

CAS	110-16-7
Structure
Synonyms	Kyselina maleinova
IUPAC Name	(Z)-But-2-enedioic acid
Molecular Weight	116.07
Molecular Formula	C4H4O4
Canonical SMILES	C(=CC(=O)O)C(=O)O
InChI	InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
InChI Key	VZCYOOQTPOCHFL-UPHRSURJSA-N
Boiling Point	275 °C
Melting Point	130-135 °C(lit.)
Flash Point	127 °C
Purity	99%
Density	1.59 g/mL at 25 °C(lit.)
Refractive Index	1.5260
pKa	1.83(at 25 °C)
pH	3.05 (1 mM solution)
Solubility in Water	790 g/L
Appearance	White solid