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Substance Name: Maleic acid [NF]
RN: 110-16-7
UNII: 91XW058U2C
InChIKey: VZCYOOQTPOCHFL-UPHRSURJSA-N

Molecular Formula

  • C4-H4-O4

Molecular Weight

  • 116.0716
 

Classification Codes

Classification Codes

  • Enzyme Inhibitors
  • Mutation Data
  • Skin / Eye Irritant

Superlist Classification Code

  • Reportable Quantity (RQ) = 5000 lb

Names and Synonyms

Name of Substance

  • 2-Butenedioic acid
  • cis-Butenedioic acid
  • Maleic acid
  • Maleic acid [NF]

Synonyms

  • 1,2-Ethylenedicarboxylic acid, (Z)
  • 2-Butenedioic acid, (Z)-
  • 4-02-00-02199 (Beilstein Handbook Reference)
  • AI3-01002
  • BRN 0605762
  • Butenedioic acid, (Z)-
  • CCRIS 1115
  • cis-1,2-Ethylenedicarboxylic acid
  • cis-Butenedioic acid
  • EC 203-742-5
  • EINECS 203-742-5
  • HSDB 666
  • Kyselina maleinova
  • Kyselina maleinova [Czech]
  • Maleic acid
  • Maleinic acid
  • Malenic acid
  • NSC 25940
  • Toxilic acid
  • UNII-91XW058U2C

Systematic Names

  • 2-Butenedioic acid (2Z)-
  • 2-Butenedioic acid (Z)- (9CI)
  • Maleic acid

Superlist Names

  • 2-Butenedioic acid (Z)-
  • Maleic acid
  • Maleic acid [NA2215] [Corrosive]
  • NA2215

Registry Numbers

CAS Registry Number

  • 110-16-7

FDA UNII

  • 91XW058U2C

Other Registry Number

  • 1975169-66-4

Related Registry Numbers

  • 10237-70-4 (potassium salt)
  • 18016-19-8 (hydrochloride salt)
  • 3105-55-3 (mono-hydrochloride salt)
  • 371-47-1 (di-hydrochloride salt)
  • 37449-49-3 (Nd salt)
  • 44742-89-4 (mono-ammonium salt)

System Generated Number

  • 0000110167

Structure Descriptors

InChI

1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-

InChIKey

VZCYOOQTPOCHFL-UPHRSURJSA-N

Smiles

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

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral 2400mg/kg (2400mg/kg)   Biochemical Journal. Vol. 34, Pg. 1196, 1940.
rabbit LD50 skin 1560mg/kg (1560mg/kg) BEHAVIORAL: TREMOR BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 7-4/1970,
rat LC50 inhalation > 720mg/m3/1H (720mg/m3)   BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 7-4/1970,
rat LD50 oral 708mg/kg (708mg/kg) BEHAVIORAL: MUSCLE WEAKNESS

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

GASTROINTESTINAL: ULCERATION OR BLEEDING FROM STOMACH
BIOFAX Industrial Bio-Test Laboratories, Inc., Data Sheets. Vol. 7-4/1970,

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 130.5 deg C   EXP
pKa Dissociation Constant 1.83 (none)   EXP
log P (octanol-water) -0.48 (none)   EXP
Water Solubility 4.41E+05 mg/L 25 EXP
Henry's Law Constant 1.35E-12 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 7.95E-12 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.