Shanghai Nianxing Industrial Co., Ltd
China
Product Name: crotononitrile
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: crotononitrile
Price: ￥1348.0/100ml ￥188.0/25ml
Purity: 98.0%
Stocking Period: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Crotononitrile
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

4786-20-3

4786-20-3 structure

4786-20-3 structure

Name: crotononitrile
Chemical Name: 2-Butenenitrile
CAS Number: 4786-20-3
Molecular Formula: C₄H₅N
Molecular Weight: 67.089
Catalog: Chemical reagent Organic reagent Cyanide/nitrile
Create Date: 2018-06-20 15:03:27
Modify Date: 2025-08-22 22:14:13

Name	2-Butenenitrile
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)-

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

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

Symbol	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

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.