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Substance Name: Methacrylic acid
RN: 79-41-4
UNII: 1CS02G8656
InChIKey: CERQOIWHTDAKMF-UHFFFAOYSA-N

Molecular Formula

  • C4-H6-O2

Molecular Weight

  • 86.0894
 

Classification Codes

Classification Codes

  • Drug / Therapeutic Agent
  • Mutation Data

Superlist Classification Code

  • TWA (20 ppm)
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Names and Synonyms

Name of Substance

  • Methacrylic acid

Synonyms

  • 2-Methyl-2-propenoic acid
  • 2-Methylacrylic acid
  • 2-Methylenepropionic acid
  • 2-Methylpropenoic acid
  • 2-Propenoic acid, 2-methyl-
  • 4-02-00-01518 (Beilstein Handbook Reference)
  • Acide methacrylique
  • Acide methacrylique [French]
  • Acido metacrilico
  • Acido metacrilico [Spanish]
  • Acrylic acid, 2-methyl-
  • AI3-15724
  • alpha-Methylacrylic acid
  • BRN 1719937
  • CCRIS 5925
  • EC 201-204-4
  • EINECS 201-204-4
  • HSDB 2649
  • Kyselina methakrylova
  • Kyselina methakrylova [Czech]
  • Methacrylic acid
  • NSC 7393
  • Propenoic acid, 2-methyl
  • Propionic acid, 2-methylene-
  • UNII-1CS02G8656

Systematic Names

  • 2-Propenoic acid, 2-methyl-
  • Methacrylic acid

Superlist Names

  • 2-Propenoic acid, 2-methyl-
  • Methacrylic acid
  • Methacrylic acid, inhibited
  • Methacrylic acid, inhibited [UN2531] [Corrosive]
  • UN2531

Registry Numbers

CAS Registry Number

  • 79-41-4

FDA UNII

  • 1CS02G8656

Other Registry Numbers

  • 1338439-16-9
  • 2023788-71-6
  • 2278236-99-8
  • 463311-95-7
  • 562836-84-4

Related Registry Numbers

  • 16809-88-4 (calcium salt)
  • 5536-61-8 (hydrochloride salt)

System Generated Number

  • 0000079414

Structure Descriptors

InChI

InChI=1S/C4H6O2/c1-3(2)4(5)6/h1H2,2H3,(H,5,6)

InChIKey

CERQOIWHTDAKMF-UHFFFAOYSA-N

Smiles

CC(=C)C(=O)O

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
child TDLo oral 250uL/kg (0.25mL/kg) LUNGS, THORAX, OR RESPIRATION: STRUCTURAL OR FUNCTIONAL CHANGE IN TRACHEA OR BRONCHI

GASTROINTESTINAL: NAUSEA OR VOMITING

SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"		 Pediatrics. Vol. 102, Pg. 979, 1998.
dog LDLo intravenous 95200nL/kg (95200mL/kg)   Journal of Pharmaceutical Sciences. Vol. 63, Pg. 376, 1974.
guinea pig LD50 skin 1gm/kg (1000mg/kg)   "Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton, G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82. Vol. 3 originally pub. in 1979; pub. as 2n rev. ed. in 1985.Vol. 2C, Pg. 4953, 1982.
mouse LD50 intraperitoneal 48mg/kg (48mg/kg)   Journal of Pharmaceutical Sciences. Vol. 62, Pg. 778, 1973.
mouse LD50 oral 1250mg/kg (1250mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 25(11), Pg. 57, 1981.
mouse LD50 unreported 1250mg/kg (1250mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 49(10), Pg. 64, 1984.
rabbit LD50 oral 1200mg/kg (1200mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 38(8), Pg. 13, 1973.
rabbit LD50 skin 500mg/kg (500mg/kg)   "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 5, Pg. 362, 1986.
rat LD50 oral 1060mg/kg (1060mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 41(4), Pg. 6, 1976.
rat LD50 unreported 1600mg/kg (1600mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 49(10), Pg. 64, 1984.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 16 deg C   EXP
Boiling Point 163 deg C   EXP
pKa Dissociation Constant 4.65 (none)   EXP
log P (octanol-water) 0.93 (none)   EXP
Water Solubility 8.90E+04 mg/L 25 EXP
Vapor Pressure 0.99 mm Hg 25 EXP
Henry's Law Constant 3.88E-07 atm-m3/mole 25 EXP
Atmospheric OH Rate Constant 1.86E-11 cm3/molecule-sec 25 EST

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