beta-Bromostyrene
Beta-Bromostyrene, mixture of cis|trans isomers
CAS: 103-64-0
Molecular Formula: C8H7Br
beta-Bromostyrene - Names and Identifiers
| Name | Beta-Bromostyrene, mixture of cis|trans isomers |
| Synonyms | Bromstyrol Bromostyrol Bromostyrene b-bromostyrene beta-Bromostyrene 2-Bromovinylbenzene Bromostyrenecistrans (2-bromoethenyl)benzene [(E)-2-bromoethenyl]benzene beta-bromostyrene (cis+trans) beta-Bromostyrene, mixture of cis- and trans isomers |
| CAS | 103-64-0 |
| EINECS | 203-131-3 |
| InChI | InChI=1/C8H7Br/c9-7-6-8-4-2-1-3-5-8/h1-7H/b7-6+ |
beta-Bromostyrene - Physico-chemical Properties
| Molecular Formula | C8H7Br |
| Molar Mass | 183.045 |
| Density | 1.44g/cm3 |
| Melting Point | 7℃ |
| Boling Point | 220.9°C at 760 mmHg |
| Flash Point | 101.7°C |
| Vapor Presure | 0.164mmHg at 25°C |
| Appearance | Form Liquid, color very deep green-yellow |
| Storage Condition | 2-8°C |
| Refractive Index | 1.63 |
| Physical and Chemical Properties | The nature of bromotriacene is a light yellow liquid with a strong fragrance similar to that of a frangipani. It is a representative product of halogenated hydrocarbon fragrances. Slightly soluble in water, soluble in organic solvents such as ethanol. It is easy to turn brown in long-exposed sunlight and should be stored in a closed place in a cool place. Boiling point 219-220 ℃ relative density (20 ℃):1.422-1.426. |
| Use | Used as a fragrance Intermediate |
beta-Bromostyrene - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed |
| Safety Description | S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. S36/37 - Wear suitable protective clothing and gloves. |
| WGK Germany | 3 |
| RTECS | WL3850000 |
| TSCA | Yes |
| HS Code | 29039990 |
| Toxicity | An acute oral LD50 in rats was reported as 1.25 ml/kg(0.82-189 ml/kg). The acute dermal LD50 was reported as > 6 ml/kg in the rabbit |
beta-Bromostyrene - Upstream Downstream Industry
| Raw Materials | Cinnamyl bromide ALPHA-BROMOSTYRENE 3-Butyn-1-ol |
| Downstream Products | Phenylacetylene ISOAMYLBENZENE CINNAMONITRILE |
beta-Bromostyrene - Nature
| solubility | Soluble in alcohol. |
| morphology | Liquid |
| BRN | 2038495 |
| NIST chemical information | Benzene, (2-bromoethenyl)-(103-64-0) |
| EPA chemical information | .beta.-Bromostyrene (103-64-0) |
Last Update：2024-04-10 22:29:15
beta-Bromostyrene - Security information
| toxic substance data | 103-64-0(Hazardous Substances Data) |
Last Update：2024-04-10 22:29:15
beta-Bromostyrene - Uses and synthesis methods
use
1. it is mostly used for flavoring soap or washing powder. It is also used in lilac, narcissus, daffodils, sunflower, sweet bean flower, fragrant Wei and other scents.
2, with strong vegetarian flowers. It is a representative product of halogenated hydrocarbon fragrances. It does not exist naturally and is synthesized artificially. The flavor of this product is not the top grade, so high-grade essence is not used, but because of its moderate price, it is often used as soap essence.
3. Used as a perfume intermediate
production method
from bromination of cinnamic acid. Bromine is added to cinnamic acid to generate dibromocinnamic acid, and then sodium carbonate is added and distilled by steam. At the same time, deCO2 and HBr are removed to generate bromothyronene. The yield is about 80%.
category
flammable liquids
toxicity classification
Poisoning
acute toxicity
oral-rat LD50: 1250 mg/kg
flammability hazard characteristics
Combustible in open flame, high temperature, strong oxidant; combustion produces toxic bromide smoke
storage and transportation features
The packaging is complete, light and light; the warehouse is ventilated, away from open flames, high temperature, and stored separately from the oxidant
fire extinguishing agent
Foam, carbon dioxide, dry powder, sand, mist water
Last Update：2024-04-09 20:52:54
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Product Name: Mianserin Impurity 21 Request for quotation
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Raw Materials for beta-Bromostyrene
Downstream Products for beta-Bromostyrene