(E)-1,4-Dibromobut-2-ene 821-06-7 high purity
COA
821-06-7
Pharmaceutical Grade
99%
Shanghai
Zentrachem
25kg/drum
2025-08-08
pharmaceutical intermediates,excipients,plant extracts,food additives,CDMO,fine cheimcals
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Product Description
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Seller Information
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DescriptionCertificatesBasic Info
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Product Name:
trans-1,4-Dibromo-2-butene
Other Name:2-Butene,1,4-dibromo-,(2E)-;2-Butene,1,4-dibromo-,(E)-;2-Butene,1,4-dibromo-,trans-;(2E)-1,4-Dibromo-2-butene;trans-1,4-Dibromo-2-butene;1,4-Dibromo-trans-2-butene;1,4-Dibromo-(E)-2-butene;(E)-1,4-Dibromo-2-butene;1,4-Dibromo-2-(E)-butene;(E)-1,4-Dibromo-2-butene;(2E)-1,4-Dibromobut-2-ene
CAS No.:821-06-7
Molecular Formula:C4H6Br2
InChIKeys:InChIKey=RMXLHIUHKIVPAB-OWOJBTEDSA-N
Molecular Weight:213.9
Exact Mass:213.90
EC Number:212-472-7
UN Number:2588
DSSTox ID:DTXSID8024941
HScode:2903399090
Categories:
Characteristics-
PSA:
0
XLogP3:2.41
Appearance:colorless to slightly brown Crystals or Crystalline Powder
Density:1.9±0.1 g/cm3
Melting Point:53.4 °C
Boiling Point:203 °C
Flash Point:113°C
Refractive Index:1.543
Water Solubility:H2O: slightly soluble
Storage Conditions:Refrigerator
Air and Water Reactions:This chemical may be sensitive to exposure to light and air. Insoluble in water.
Reactive Group:Halogenated Organic Compounds
Reactivity Profile:(E)-1,4-DIBROMO-2-BUTENE is incompatible with strong oxidizers and strong bases. (NTP, 1992)
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 3, Oral
Acute toxicity - Category 3, Dermal
Skin corrosion, Sub-category 1B
Skin sensitization, Sub-category 1A
Serious eye damage, Category 1
Acute toxicity - Category 1, Inhalation
Carcinogenicity, Category 1B
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H301 Toxic if swallowed
H311 Toxic in contact with skin
H314 Causes severe skin burns and eye damage
H317 May cause an allergic skin reaction
H318 Causes serious eye damage
H330 Fatal if inhaled
H350 May cause cancer
H411 Toxic to aquatic life with long lasting effects
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
P271 Use only outdoors or in a well-ventilated area.
P284 [In case of inadequate ventilation] wear respiratory protection.
P203 Obtain, read and follow all safety instructions before use.
P273 Avoid release to the environment.
Response P301+P316 IF SWALLOWED: Get emergency medical help immediately.
P321 Specific treatment (see ... on this label).
P330 Rinse mouth.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P316 Get emergency medical help immediately.
P361+P364 Take off immediately all contaminated clothing and wash it before reuse.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P363 Wash contaminated clothing before reuse.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P333+P317 If skin irritation or rash occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P317 Get medical help.
P320 Specific treatment is urgent (see ... on this label).
P318 IF exposed or concerned, get medical advice.
P391 Collect spillage.
Storage P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
pharmaceutical intermediates,excipients,plant extracts,food additives,CDMO,fine cheimcals
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Location:
Rm 301, Bld 2, Taohuahu Neighborhood Center, Hangzhou, China
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Payment Terms:
TT against copy of documents,D/P,L/C,D/A,100% TT in advance
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Average lead Time:
14
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Total Employees:
5-10
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Year of Establishment:
2025
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Country Product Purchase Quantity Date Posted Post an enquiry for this product
