China Factory Direct
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| CAS number | 92-84-2 |
| Product name | Phenothiazine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial GradeReagent Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
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| Pharmaceuticals | Intermediate for antipsychotic drugs, used in the synthesis of chlorpromazine, perphenazine, and other phenothiazine antipsychotics | Synthesized via aromatic ring substitution and amination reactions |
| Chemical Reagents | Organic synthesis intermediate for dyes, pesticides, and functional materials | Used as a starting material in condensation, oxidation, or coupling reactions |
| Dye Industry | Building block for sulfur dyes and certain acid dyes | Electrophilic substitution with sulfonic acid groups, halogens, and other substituents to construct dye molecules |
| Pesticides | Intermediate for certain fungicides and insecticides | Alkylation, acylation, and other reactions to introduce active functional groups |
| Materials Science | Used to prepare functional polymers or organic semiconductor materials with optoelectronic properties | Phenothiazine units incorporated via polymerization (e.g., free-radical polymerization or condensation polymerization) to enhance conductivity and stability |
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Assay | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Utilizes the characteristic absorption peak of phenothiazine at specific wavelengths (e.g., around 254 nm or 290 nm). The content is determined using a standard curve method. Simple and rapid, suitable for preliminary quantitative analysis of active pharmaceutical ingredients. |
| Assay | High-Performance Liquid Chromatography (HPLC) | Employs a reversed-phase C18 column with methanol-water or acetonitrile-buffer solution as the mobile phase, and UV detection. Offers excellent separation and high specificity; widely used for assay and impurity analysis of phenothiazine and its formulations. |
| Related Substances | High-Performance Liquid Chromatography (HPLC) | Separates degradation products or synthetic impurities in phenothiazine (such as sulfone or sulfoxide derivatives) via gradient or isocratic elution, followed by UV detection for limit testing to ensure drug purity. |
| Dissolution Testing | Dissolution Tester combined with UV or HPLC Detection | Performs dissolution testing on phenothiazine formulations (e.g., tablets), typically using paddle or basket method. Samples are collected and analyzed by UV or HPLC to determine dissolved amount, evaluating the in vitro release behavior of the formulation. |
| Structural Confirmation | Infrared Spectroscopy (IR) | Determines the infrared absorption spectrum of phenothiazine and compares it with reference spectra to confirm functional groups and molecular structure characteristics; commonly used for raw material identification. |
| Structural Confirmation | Nuclear Magnetic Resonance Spectroscopy (NMR) | Uses ¹H-NMR and ¹³C-NMR to analyze the structure of phenothiazine, providing information on the chemical environment of hydrogen and carbon atoms, enabling high-precision structural confirmation. |
| Residual Solvent Testing | Gas Chromatography (GC) | Detects organic solvents possibly remaining from manufacturing processes (e.g., methanol, benzene, dichloromethane), using capillary columns and FID detector, ensuring compliance with ICH guidelines for residual solvent limits. |
| Moisture Content Determination | Karl Fischer Titration | Accurately measures moisture content in phenothiazine raw materials. Available in volumetric and coulometric methods, suitable for trace moisture analysis, ensuring product quality stability. |
| Polymorphic Analysis | X-Ray Powder Diffraction (XRD) | Used to identify different crystalline forms of phenothiazine, assess crystallinity and polymorphism, which significantly influence formulation stability and dissolution performance. |
| Thermal Stability Analysis | Differential Scanning Calorimetry (DSC) | Determines melting point, phase transition temperatures, and thermal decomposition behavior of phenothiazine to evaluate its thermal stability, supporting formulation process design. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow powder |
| Purity | ≥99.0% |
| Melting Point ,℃ | ≥183 |
| Loss on Drying | ≤0.1% |
| Burning residue | ≤0.1% |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.