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63189

Maleic acid

tested according to Ph. Eur.

Synonym(s):

Acidum maleicum, cis-Butenedioic acid, Toxilic acid

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About This Item

Linear Formula:
HO2CCH=CHCO2H
CAS Number:
110-16-7
Molecular Weight:
116.07
EC Number:
203-742-5
UNSPSC Code:
12352100
PubChem Substance ID:
329759809
Beilstein/REAXYS Number:
605762
MDL number:
MFCD00063177
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agency

USP/NF, tested according to Ph. Eur.

assay

99.0-101.0% substance (anhydrous) basis

form

fine crystals, powder

mp

130-135 °C (lit.)

solubility

water: soluble 478.8 g/L at 20 °C

density

1.59 g/mL at 25 °C (lit.)

cation traces

Fe: ≤5 ppm, heavy metals: ≤10 ppm

application(s)

pharmaceutical (small molecule)

storage temp.

2-8°C

SMILES string

OC(=O)\C=C/C(O)=O

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

General description

Maleic acid is a dicarboxylic acid. It can be synthesized from crotonaldehyde.

Application

Maleic acid may be used in the synthesis of (R,S)-malic acid and fumaric acid. It may be employed as an anionic monomer in the preparation of superswelling acrylamide (AAm)/maleic acid (MA) hydrogels.†

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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