TRANS-1,4-DIBROMO-2-BUTENE

Modify Date: 2025-08-27 19:29:57

TRANS-1,4-DIBROMO-2-BUTENE structure	Common Name	TRANS-1,4-DIBROMO-2-BUTENE
	CAS Number	6974-12-5	Molecular Weight	213.89800
	Density	1.867g/cm3	Boiling Point	203ºC at 760 mmHg
	Molecular Formula	C₄H₆Br₂	Melting Point	48-51ºC
	MSDS	N/A	Flash Point	71.9ºC

Name	trans-1,4-dibromo-2-butene
Synonym	More Synonyms

Density	1.867g/cm3
Boiling Point	203ºC at 760 mmHg
Melting Point	48-51ºC
Molecular Formula	C₄H₆Br₂
Molecular Weight	213.89800
Flash Point	71.9ºC
Exact Mass	211.88400
LogP	2.33240
Index of Refraction	1.542
Storage condition	0-6°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EM4550000

CHEMICAL NAME :: 2-Butene, 1,4-dibromo-

CAS REGISTRY NUMBER :: 6974-12-5

BEILSTEIN REFERENCE NO. :: 1719694

LAST UPDATED :: 199806

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C4-H6-Br2

MOLECULAR WEIGHT :: 213.92

WISWESSER LINE NOTATION :: E2U2E

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 :: 75 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine. (Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU. Volume(issue)/page/year: 10,61,1954

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1260 mg/m3/10M

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NDRC** National Defense Research Committee, Office of Scientific Research and Development, Progress Report. Volume(issue)/page/year: NDCrc-132,AUG1942

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3750 ug/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia

REFERENCE :: CBCCT* "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. (National Academy of Science Library, 2101 Constitution Ave., NW, Washington, DC 20418) Volume(issue)/page/year: 5,338,1953

Hazard Codes	T: Toxic;
Risk Phrases	R25
Safety Phrases	26-36/37/39-45
RIDADR	UN 2923 8/PG 2
WGK Germany	2
RTECS	EM4725000

Precursor 10
CAS#:6117-80-2 (2Z)-2-Butene-1... CAS#:106-99-0 butadiene CAS#:106-95-6 allyl bromide CAS#:34736-33-9 1,1-difluoro-2,...
CAS#:497-06-3 3-butene-1,2-diol CAS#:506-68-3 Cyanogen bromide CAS#:10463-48-6 3,4-Dibromo-1-butene CAS#:67-66-3 Chloroform
CAS#:7726-95-6 Bromine CAS#:7664-93-9 Sulfuric acid
DownStream 10
CAS#:79521-53-2 diethyl [(E)-4-... CAS#:1112-96-5 Phosphonic acid... CAS#:10463-48-6 3,4-Dibromo-1-butene CAS#:4559-79-9 N,N,N',N'-tetra...
CAS#:38300-67-3 1,2,4-Tribromobutane CAS#:497-06-3 3-butene-1,2-diol CAS#:821-11-4 2-BUTENE-1,4-DIOL CAS#:123-73-9 Crotonaldehyde
CAS#:4436-74-2 Trans-2-butene-... CAS#:144-62-7 Oxalic acid

1,4-Dibromobut-2-ene

Wln: E2U2e

1,4-dibromobutene

EINECS 212-472-7

MFCD00000249

tl80

1,4-DIBROMO-2-BUTENE

2-Butene,1,4-dibromo

1,4-Dibrom-but-2-en

1,4-dibromo-2-buten

TRANS-1,4-DIBROMOBUT-2-ENE

Cis-1,4-DibromoButene

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Product Name: 1,4-Dibromo-2-butene
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Purity: 98.0%
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