4-Hydroxyindole Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2380-94-1 |
| Product name | 4-Hydroxyindole |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty GradeReagent Grade |
| Packaging | 25KG/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) |
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Documents We Provide for 4-Hydroxyindole
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Hydroxyindole Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Hydroxyindole
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of alkaloid-based drug intermediates (e.g., antidepressants, anticancer agents) | Used in organic synthesis and catalytic reactions |
| Pesticides | Preparation of insecticide or plant growth regulator intermediates | Applied in condensation reactions and functional group modification |
| Dyes | Used as precursors for azo dyes in textile or photosensitive materials | Applied in diazotization and coupling reactions |
| Research | Structural studies or biological activity testing of indole derivatives | Used in chromatographic analysis and biological assays |
| Fine Chemicals | Synthesis of fragrance or fluorescent whitening agent intermediates | Applied in esterification, condensation, and related reactions |
Manufacturing Quality Control of 4-Hydroxyindole
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color, state, and visible impurities of the sample under natural light or standard illumination. |
| Melting Point | Capillary Melting Point Determination | Determine the melting temperature range using a melting point apparatus, and compare with literature values (e.g., approximately 108–110°C) to assess purity. |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reverse-phase C18 column, with a mobile phase of methanol-water or acetonitrile-water, and detect with a UV detector (e.g., 280 nm), using an external standard method for quantitative analysis of the main component. |
| Related Substances / Impurity Analysis | High-Performance Liquid Chromatography (HPLC) | Same as above, separate possible organic impurities (e.g., oxidation products, unreacted raw materials) through gradient elution, and calculate the area of each impurity peak to control limits. |
| Solubility | Solubility Test Method | Add the sample to different solvents (e.g., water, ethanol, DMSO, ethyl acetate) and shake to observe the dissolution condition, evaluating its solubility performance. |
| Drying Loss | Thermogravimetric Analysis (TGA) or Oven Method | Dry the sample at a specified temperature (e.g., 105°C) for a certain period, weigh the mass change, and calculate the content of moisture and volatile substances. |
| Residual Solvents | Gas Chromatography (GC) | Use headspace or solution injection to detect residual organic solvents (e.g., methanol, ethanol, acetone, dichloromethane) from the production process. |
| Residue on Ignition | Sulfation and High-Temperature Incineration | Treat the sample with sulfuric acid and then incinerate it at high temperature (e.g., 600–800°C) in a muffle furnace until constant weight, to determine the amount of inorganic impurities residue. |
| Structure Confirmation | Nuclear Magnetic Resonance Spectroscopy (NMR) | Use ¹H-NMR and ¹³C-NMR to confirm the structure of the compound, verifying whether the chemical structure of the target substance is correct. |
| Structure Confirmation | Mass Spectrometry (MS) | Use ESI or EI mass spectrometry to determine the molecular ion peak, confirm the molecular weight, and analyze structural features based on fragment peaks. |
| Polymorphic Analysis (if applicable) | X-ray Diffraction (XRD) | Analyze the crystal structure of solid samples, used for polymorphic studies or consistency control (when differences in polymorphism may affect stability or solubility). |
Technical Specifications of 4-Hydroxyindole
| Test Item | Specification |
|---|---|
| Appearance | White to grey powder |
| Purity | ≥99.0% |
| Water | ≤0.5% |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 4-Hydroxyindole
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Hydroxyindole
Packaging of 4-Hydroxyindole
Industrial 4-Hydroxyindole Procurement FAQ
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.
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