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Substance Name: Methylacrylonitrile
RN: 126-98-7
UNII: 04S4K38612
InChIKey: GYCMBHHDWRMZGG-UHFFFAOYSA-N

Note

  • Lacrimator; preparation of polymers & homopolymers.

Molecular Formula

  • C4-H5-N

Molecular Weight

  • 67.0905
 

Classification Codes

Classification Codes

  • Reproductive Effect
  • Skin / Eye Irritant
  • Tumor Data

Superlist Classification Codes

  • Reportable Quantity (RQ) = 1000 lb
  • Threshold Planning Quantity (TPQ) = 500 lb
  • TWA (1 ppm); skin

Names and Synonyms

Name of Substance

  • Methacrylonitrile
  • Methylacrylonitrile

Synonyms

  • 2-Cyanopropene-1
  • 2-Methyl-2-propenenitrile
  • 2-Methylacrylonitrile
  • 2-Methylpropenenitrile
  • 2-Propenenitrile, 2-methyl-
  • AI3-52399
  • CCRIS 4841
  • EC 204-817-5
  • EINECS 204-817-5
  • HSDB 5613
  • Isopropene cyanide
  • Isopropenylnitrile
  • Methacrylonitrile
  • Methylacrylonitrile
  • NSC 24145
  • RCRA waste number U152
  • UNII-04S4K38612
  • USAF ST-40

Systematic Names

  • 2-Propenenitrile, 2-methyl-
  • Methacrylonitrile

Superlist Names

  • 2-Propenenitrile, 2-methyl-
  • Methacrylonitrile
  • Methacrylonitrile, inhibited
  • Methacrylonitrile, inhibited [UN3079] [Flammable liquid]
  • Methyl acrylonitrile
  • Methylacrylonitrile
  • RCRA waste no. U152
  • UN3079

Registry Numbers

CAS Registry Number

  • 126-98-7

FDA UNII

  • 04S4K38612

System Generated Number

  • 0000126987

Structure Descriptors

InChI

1S/C4H5N/c1-4(2)3-5/h1H2,2H3

InChIKey

GYCMBHHDWRMZGG-UHFFFAOYSA-N

Smiles

C(C#N)(C)=C

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LCLo inhalation 52ppm/7H (52ppm) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: GENERAL ANESTHETIC
American Industrial Hygiene Association Journal. Vol. 29, Pg. 202, 1968.
guinea pig LC50 inhalation 88ppm/4H (88ppm) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD American Industrial Hygiene Association Journal. Vol. 29, Pg. 202, 1968.
mouse LC50 inhalation 36ppm/4H (36ppm) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD American Industrial Hygiene Association Journal. Vol. 29, Pg. 202, 1968.
mouse LD50 oral 17mg/kg (17mg/kg)   Juzen Igakkai Zasshi. Journal of Juzen Medical Society. Vol. 94, Pg. 664, 1985.
mouse LDLo intraperitoneal 15mg/kg (15mg/kg)   Journal of Industrial Hygiene and Toxicology. Vol. 31, Pg. 113, 1949.
rabbit LC50 inhalation 37ppm/4H (37ppm) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD American Industrial Hygiene Association Journal. Vol. 29, Pg. 202, 1968.
rabbit LD50 oral 16mg/kg (16mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 29(5), Pg. 37, 1985.
rabbit LD50 skin 12500ug/kg (12.5mg/kg)   National Technical Information Service. Vol. OTS0534646,
rat LC50 inhalation 328ppm/4H (328ppm) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
American Industrial Hygiene Association Journal. Vol. 29, Pg. 202, 1968.
rat LD50 oral 120mg/kg (120mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 29(5), Pg. 37, 1985.
rat LD50 skin 2080mg/kg (2080mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 29(5), Pg. 37, 1985.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -3.58E+01 deg C   EXP
Boiling Point 90.3 deg C   EXP
log P (octanol-water) 0.68 (none)   EXP
Water Solubility 2.54E+04 mg/L 25 EXP
Vapor Pressure 71.2 mm Hg 25 EXP
Henry's Law Constant 2.47E-04 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 8.36E-12 cm3/molecule-sec 25 EST

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