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Substance Name: Chloroprene
RN: 126-99-8
UNII: 42L93DWV3A
InChIKey: YACLQRRMGMJLJV-UHFFFAOYSA-N

Note

  • Toxic, possibly carcinogenic, monomer of neoprene, a synthetic rubber; causes damage to skin, lungs, CNS, kidneys, liver, blood cells and fetuses. Synonym: 2-chlorobutadiene.

Molecular Formula

  • C4-H5-Cl

Molecular Weight

  • 88.5365
 

Classification Codes

Classification Codes

  • Mutation Data
  • Reproductive Effect
  • Skin / Eye Irritant
  • Tumor Data

Superlist Classification Codes

  • Overall Carcinogenic Evaluation: Group 2B
  • Reasonlly Anticipated as a Human Carcinogen
  • TWA (10 ppm); skin
  • TWA 25 ppm (90 mg/m3); skin

Names and Synonyms

Results Name

  • Chloroprene

Name of Substance

  • 2-Chloro-1,3-butadiene
  • Chloroprene

MeSH Heading

  • Chloroprene

Synonyms

  • 1,3-Butadiene, 2-chloro-
  • 2-Chloor-1,3-butadieen
  • 2-Chloor-1,3-butadieen [Dutch]
  • 2-Chlor-1,3-butadien
  • 2-Chlor-1,3-butadien [German]
  • 2-Chlorobuta-1,3-diene
  • 2-Chlorobutadiene
  • 2-Cloro-1,3-butadiene
  • 2-Cloro-1,3-butadiene [Italian]
  • CCRIS 873
  • Chlorobutadiene
  • Chloropreen
  • Chloropreen [Dutch]
  • Chloropren
  • Chloropren [German, Polish]
  • Chloroprene
  • Cloroprene
  • Cloroprene [Italian]
  • EC 204-818-0
  • EINECS 204-818-0
  • HSDB 1618
  • Neoprene
  • NSC 18589
  • UNII-42L93DWV3A

Systematic Names

  • 1,3-Butadiene, 2-chloro-
  • 2-Chlorobuta-1,3-diene
  • Chloroprene

Superlist Names

  • 1,3-Butadiene, 2-chloro-
  • 2-Chloro-1,3-butadiene
  • beta-Chloroprene
  • beta-Chloroprene 2-Chloro-1,3-butadiene
  • Chloroprene
  • Chloroprene, inhibited
  • Chloroprene, inhibited [UN1991] [Flammable liquid, Poison]
  • Chloroprene, uninhibited
  • Chloroprene, uninhibited [Forbidden]
  • UN1991

Registry Numbers

CAS Registry Number

  • 126-99-8

FDA UNII

  • 42L93DWV3A

Other Registry Number

  • 184963-09-5

System Generated Number

  • 0000126998

Structure Descriptors

InChI

InChI=1S/C4H5Cl/c1-3-4(2)5/h3H,1-2H2

InChIKey

YACLQRRMGMJLJV-UHFFFAOYSA-N

Smiles

ClC(=C)C=C

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LCLo inhalation 1290mg/m3/8H (1290mg/m3)   Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 240, 1936.
cat LDLo subcutaneous 100mg/kg (100mg/kg)   Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 240, 1936.
mouse LC50 inhalation 2300mg/m3 (2300mg/m3)   Zhurnal Eksperimental'noi i Klinicheskoi Meditsiny. Journal of Experimental and Clinical Medicine. Vol. (6), Pg. 66, 1969.
mouse LD50 oral 146mg/kg (146mg/kg)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 38, 1982.
mouse LDLo subcutaneous 1gm/kg (1000mg/kg) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

LUNGS, THORAX, OR RESPIRATION: CYANOSIS

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD		 Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 240, 1936.
pigeon LDLo subcutaneous 13gm/kg (13000mg/kg)   Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 240, 1936.
rabbit LCLo inhalation 3870mg/m3/8H (3870mg/m3)   Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 240, 1936.
rabbit LDLo intravenous 96mg/kg (96mg/kg) SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"

BLOOD: OTHER CHANGES		 Sbornik Lekarsky. Collection of Medical Works. Vol. 44, Pg. 63, 1942.
rat LC50 inhalation 11800mg/m3/4H (11800mg/m3)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 38, 1982.
rat LD50 oral 450mg/kg (450mg/kg)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 38, 1982.
rat LDLo subcutaneous 500mg/kg (500mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: DYSPNEA

LUNGS, THORAX, OR RESPIRATION: CYANOSIS		 Journal of Industrial Hygiene and Toxicology. Vol. 18, Pg. 240, 1936.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -1.30E+02 deg C   EXP
Boiling Point 59.4 deg C   EXP
log P (octanol-water) 2.530 (none)   EST
Water Solubility 875 mg/L 25 EST
Vapor Pressure 216 mm Hg 25 EXP
Henry's Law Constant 0.056 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.21E-11 cm3/molecule-sec 25 EST

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