crotononitrile

Modify Date: 2025-08-22 22:14:13

crotononitrile Structure
crotononitrile structure
 Common Name crotononitrile
CAS Number 4786-20-3 Molecular Weight 67.089
Density 0.8±0.1 g/cm3 Boiling Point 120.5±0.0 °C at 760 mmHg
Molecular Formula C4H5N Melting Point -51.5ºC
MSDS Chinese USA Flash Point 20.0±0.0 °C
Symbol GHS02 GHS07
GHS02, GHS07		 Signal Word Danger

 Names

Name 2-Butenenitrile
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.8±0.1 g/cm3
Boiling Point 120.5±0.0 °C at 760 mmHg
Melting Point -51.5ºC
Molecular Formula C4H5N
Molecular Weight 67.089
Flash Point 20.0±0.0 °C
Exact Mass 67.042198
PSA 23.79000
LogP 0.71
Vapour Pressure 15.2±0.2 mmHg at 25°C
Index of Refraction 1.418

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GQ6322000
CHEMICAL NAME :
Crotononitrile
CAS REGISTRY NUMBER :
4786-20-3
LAST UPDATED :
199710
DATA ITEMS CITED :
8
MOLECULAR FORMULA :
C4-H5-N
MOLECULAR WEIGHT :
67.10
WISWESSER LINE NOTATION :
NC1U2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
501 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 37(4),10,1972
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
396 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 37(4),10,1972
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
60 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
COREAF Comptes Rendus Hebdomadaires des Seances, Academie des Sciences. (Paris, France) V.1-261, 1835-1965. For publisher information, see CRASEV. Volume(issue)/page/year: 153,895,1911
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
272 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 37(4),10,1972
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
230 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
COREAF Comptes Rendus Hebdomadaires des Seances, Academie des Sciences. (Paris, France) V.1-261, 1835-1965. For publisher information, see CRASEV. Volume(issue)/page/year: 153,895,1911 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
91 mg/kg/26W-I
TOXIC EFFECTS :
Liver - liver function tests impaired Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 37(4),10,1972

 Safety Information

Symbol GHS02 GHS07
GHS02, GHS07
Signal Word Danger
Hazard Statements H225-H302-H315-H319-H335
Precautionary Statements P210-P261-P305 + P351 + P338
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes Xn: Harmful;F: Flammable;
Risk Phrases R16;R26;R36/37/38
Safety Phrases S16-S26-S36
RIDADR UN 2924 3/PG 2
WGK Germany 3
RTECS GQ6322000
Packaging Group II
Hazard Class 3.1

 Articles26

More Articles
Comparative developmental toxicities of aliphatic nitriles: in vivo and in vitro observations.

Toxicol. Appl. Pharmacol. 163(2) , 149-63, (2000)

The effects on embryonic development of a series of eight saturated (acetonitrile, propionitrile, and n-butyronitrile) and unsaturated (acrylonitrile, methacrylonitrile, allylnitrile, cis-2-pentenenit...

A new unifying hypothesis for lathyrism, konzo and tropical ataxic neuropathy: nitriles are the causative agents.

Food Chem. Toxicol. 49(3) , 563-70, (2011)

Konzo and lathyrism are associated with consumption of cassava and grass pea, respectively. Cassava consumption has also been associated with a third disease, tropical ataxic neuropathy (TAN). This re...

Relative developmental toxicities of inhaled aliphatic mononitriles in rats.

Fundam. Appl. Toxicol. 20(3) , 365-75, (1993)

The developmental toxicities of eight aliphatic mononitriles were studied in Sprague-Dawley rats after inhalation exposure for 6 hr/day, during Days 6 to 20 of gestation. The range of exposure concent...

 Synonyms

EINECS 225-335-1
(2E)-2-Butenenitrile
(2E)-But-2-enenitrile
Crotononitrile (pract)
MFCD00001935
cis-β-Methylacrylonitrile
(E)-2-Butenenitrile
crotononitrile
But-2-Enenitrile
2-Butenenitrile, (2E)-
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