Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Profile
- Full IUPAC Name: 2-(4-Bromophenyl)benzo[d]thiazole
- Aliases: 2-(4-Bromophenyl)benzothiazole
- CAS Number: 19654-19-4
- EINECS: N/A
- Molecular Formula: C13H8BrNS
- Molecular Weight: 290.18
- Chemical Classification: Heterocyclic brominated aromatic intermediate, optoelectronic material precursor, cross-coupling building block
- Core Advantages
Conjugated benzothiazole fused-ring structure with para-bromophenyl substituent. The aryl bromide group supports Suzuki-Miyaura, Buchwald-Hartwig, Heck cross-coupling reactions. Rigid conjugated backbone delivers excellent photoelectric performance, widely applied in OLED luminescent materials, fluorescent probes, pharmaceutical heterocyclic derivatives and organic semiconductor synthesis.
2. Physical & Chemical Properties
2.1 Physical Index
- Appearance: Off-white to pale yellow crystalline powder
- Odor: Odorless
- Solubility: Soluble in DCM, chloroform, toluene, THF; slightly soluble in methanol, ethanol; insoluble in water and aliphatic alkanes
- Melting Point: 118–122 °C
- Hygroscopy: Non-hygroscopic under dry storage
- Optical Feature: Distinct UV absorption from conjugated heterocyclic system
2.2 Chemical Properties
- Aryl Bromide Reactivity: C-Br bond undergoes palladium-catalyzed cross-coupling to extend conjugated aromatic chains
- Benzothiazole Heterocycle: N and S heteroatoms offer coordination sites for metal complex synthesis
- Acid & Alkali Stability: Stable under neutral, weak acid and weak alkaline conditions, resistant to mild hydrolysis
- Thermal Stability: Stable below 220 °C; slow sublimation above melting point without obvious decomposition
- Photostability: Moderate light resistance; long-term strong UV exposure causes slight darkening
- Compatibility: Compatible with anhydrous organic solvents and coupling catalysts; incompatible with strong oxidants and hot concentrated mineral acids
3. Main Application Fields
3.1 Organic Optoelectronic Material Intermediate (Core Usage)
Key raw material for OLED luminescent layers, organic photoconductors and fluorescent chemical sensors. The conjugated benzothiazole skeleton enhances charge transport capacity of electronic devices.
3.2 Pharmaceutical Heterocyclic Building Block
Precursor for synthesizing benzothiazole-based anti-bacterial, anti-inflammatory and anti-tumor small-molecule drugs via cross-coupling derivatization.
3.3 Organic Chemistry Laboratory Reagent
Standard brominated heterocyclic substrate for transition metal catalytic coupling research in academic synthetic chemistry labs.
4. Quality Specification Table
| Test Item | Standard Index |
| CAS No. | 19654-19-4 |
| Molecular Formula | C13H8BrNS |
| Molecular Weight | 290.18 |
| Appearance | Off-white to pale yellow crystalline powder |
| Melting Range | 118–122 °C |
| HPLC Purity | Synthesis Grade ≥98.0%; Electronic Grade ≥99.5% |
| Single Maximum Unknown Impurity | ≤0.10% |
| Total Related Substances | ≤0.50% |
| Moisture (KF) | ≤0.20% |
| Heavy Metals (Pb) | ≤10 ppm |
| Residue on Ignition | ≤0.10% |
| Bulk Package | 25kg light-proof fiber drum lined with nitrogen-sealed aluminum foil |
| Sample Package | 10g / 100g / 1kg sealed light-proof aluminum foil bag |
| Storage Requirements | Hermetic, light-proof cool dry warehouse ≤25℃; separate from humid air, strong oxidants and intense light |
| Transportation Rule | Non-hazardous general organic intermediate; light-proof and waterproof packaging required during transit |
| Shelf Life | 24 months under intact nitrogen-sealed light-proof packaging |
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