Home Categories Organic Chemistry Maleic acid
A5409812

Maleic acid , CP,99% , 110-16-7

Synonym(s):
Butenedioic Acid;Toxilic acid;(2Z)-2-Butenedioic acid;(2Z)-But-2-enedioic acid;cis-Butenedioic acid

CAS NO.:110-16-7

Empirical Formula: C4H4O4

Molecular Weight: 116.07

MDL number: MFCD00063177

EINECS: 203-742-5

Pack Size Price Stock Quantity
100G RMB23.20 In Stock
500G RMB52.00 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 130-135 °C (lit.)
Boiling point: 275°C
Density  1.59 g/mL at 25 °C (lit.)
vapor pressure  0.001Pa at 20℃
refractive index  1.5260 (estimate)
Flash point: 127 °C
storage temp.  Store below +30°C.
solubility  478.8g/l
form  Powder/Solid
pka 1.83(at 25℃)
Specific Gravity 1.59
color  White
PH 3.05(1 mM solution);2.21(10 mM solution);1.54(100 mM solution);
Water Solubility  790 g/L (25 ºC)
Merck  14,5703
BRN  605762
Stability: Stable. Combustible. Incompatible with strong oxidizing agents, bases.
InChIKey VZCYOOQTPOCHFL-OWOJBTEDSA-N
LogP -1.3 at 20℃

Description and Uses

Maleic acid is an organic compound that is a dicarboxylic acid, a molecule with two carboxyl groups. Its chemical formula is HO2CCHCHCO2H. Maleic acid is the cis-isomer of butenedioic acid, where as fumaric acid is the trans-isomer. It is mainly used as a precursor to fumaric acid, and relative to its parent maleic anhydride, maleic acid has few applications.

Maleic acid is used as a precursor to fumaric acid, dimethyl maleate and glyoxalic acid. It is an electrophile and acts as dienophine in Diels-Alder reactions. It reacts with drugs to form more stable addition salts like indacaterol maleate, carfenazine, chlorpheniramine, pyrilamine, methylergonovine and thiethylperazine. Its maleate ion is useful in biochemistry as an inhibitor of transaminase reactions.

Safety

Symbol(GHS) 
GHS05,GHS07
Symbol(GHS) 
GHS05,GHS07
Symbol(GHS) 
GHS05,GHS07
Symbol(GHS) 
GHS05,GHS07
Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Signal word  Danger
Signal word  Danger
Signal word  Danger
Signal word  Danger
Hazard statements  H302+H312-H315-H317-H318-H335
Hazard statements  H302+H312-H315-H317-H318-H335
Hazard statements  H302+H312-H315-H317-H318-H335
Hazard statements  H302+H312-H315-H317-H318-H335
Hazard statements  H302+H312-H315-H317-H318-H335
Precautionary statements  P261-P264-P280-P301+P312-P302+P352+P312-P305+P351+P338
Precautionary statements  P261-P264-P280-P301+P312-P302+P352+P312-P305+P351+P338
Precautionary statements  P261-P264-P280-P301+P312-P302+P352+P312-P305+P351+P338
Precautionary statements  P261-P264-P280-P301+P312-P302+P352+P312-P305+P351+P338
Precautionary statements  P261-P264-P280-P301+P312-P302+P352+P312-P305+P351+P338
Hazard Codes  Xn
Risk Statements  22-36/37/38-43
Safety Statements  26-28-37-28A-46-24
RIDADR  3261
WGK Germany  1
RTECS  OM9625000
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29173990

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