(2E)-1,4-Dibromo-2-butene

Modify Date: 2025-08-26 19:11:10

(2E)-1,4-Dibromo-2-butene structure	Common Name	(2E)-1,4-Dibromo-2-butene
	CAS Number	821-06-7	Molecular Weight	213.898
	Density	1.9±0.1 g/cm3	Boiling Point	203.0±0.0 °C at 760 mmHg
	Molecular Formula	C₄H₆Br₂	Melting Point	48-53ºC
	MSDS	Chinese USA	Flash Point	71.9±21.0 °C
	Symbol	GHS05, GHS06	Signal Word	Danger

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

Density	1.9±0.1 g/cm3
Boiling Point	203.0±0.0 °C at 760 mmHg
Melting Point	48-53ºC
Molecular Formula	C₄H₆Br₂
Molecular Weight	213.898
Flash Point	71.9±21.0 °C
Exact Mass	211.883606
LogP	2.41
Vapour Pressure	0.4±0.3 mmHg at 25°C
Index of Refraction	1.543
Storage condition	Refrigerator
Water Solubility	slightly soluble

(2E)-1,4-Dibromo-2-butene MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EM4725000

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

CAS REGISTRY NUMBER :: 821-06-7

BEILSTEIN REFERENCE NO. :: 1719696

LAST UPDATED :: 199701

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C4-H6-Br2

MOLECULAR WEIGHT :: 213.92

WISWESSER LINE NOTATION :: E2U2E -T

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd., San Romon, CA 94583) Volume(issue)/page/year: -,3,1961 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 62 mg/kg

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

REFERENCE :: SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd., San Romon, CA 94583) Volume(issue)/page/year: -,9,1961

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 29 mg/kg

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

REFERENCE :: SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd., San Romon, CA 94583) Volume(issue)/page/year: -,9,1961

Symbol	GHS05, GHS06
Signal Word	Danger
Hazard Statements	H301-H314
Precautionary Statements	P280-P301 + P310-P305 + P351 + P338-P310
Personal Protective Equipment	Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes	T:Toxic
Risk Phrases	R23/25;R34
Safety Phrases	S26-S28-S36/37/39-S45
RIDADR	UN 2923
WGK Germany	2
RTECS	EM4725000
Packaging Group	III
Hazard Class	6.1(b)
HS Code	2903399090

Precursor 10
CAS#:106-99-0 butadiene CAS#:344397-18-8 1,4-BUTENEDIOL CAS#:78-76-2 2-Bromobutane CAS#:6081-86-3 pyridine perbromide
CAS#:10463-48-6 3,4-Dibromo-1-butene CAS#:821-11-4 2-BUTENE-1,4-DIOL CAS#:110-86-1 Pyridine CAS#:124-18-5 Decane
CAS#:67-66-3 Chloroform CAS#:7726-95-6 Bromine
DownStream 10
CAS#:1112-96-5 Phosphonic acid... CAS#:105-17-9 2-Butene-1,4-di... CAS#:497-06-3 3-butene-1,2-diol CAS#:821-11-4 2-BUTENE-1,4-DIOL
CAS#:18085-02-4 BUT-3-ENE-1,2-D... CAS#:18189-24-7 2-BUTENYLENEBIS... CAS#:624-64-6 2-butene CAS#:689-97-4 1-buten-3-yne
CAS#:89567-73-7 1-bromobuta-1,3... CAS#:110-54-3 N-hexane

HS Code	2903399090
Summary	2903399090. brominated,fluorinated or iodinated derivatives of acyclic hydrocarbons. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

(2E)-1,4-dibromobut-2-ene

EINECS 212-472-7

2-Butene, 1,4-dibromo-, (2E)-

MFCD07783464

2-Butene, 1,4-dibromo-, (E)-

(E)-1,4-dibromobut-2-ene

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: (2E)-1,4-Dibromo-2-butene
Price: Check
Purity: 99.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: (2E)-1,4-Dibromo-2-butene
Price: ￥658.0/500g ￥198.0/100g
Purity: 98.0%
Delivery: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: (E)-1,4-Dibromobut-2-ene
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: TIANFUCHEM--821-06-7---(E)-1,4-Dibromobut-2-ene
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: (2E)-1,4-Dibromo-2-butene
Price: ￥Inquiry/25kg
Purity: 98.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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(2E)-1,4-Dibromo-2-butene

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Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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Synthetic Route

Precursor & DownStream

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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.