1-Methylamino-4-bromo anthraquinone Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 128-93-8 |
| Product name | 1-Methylamino-4-bromo anthraquinone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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) |
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Documents We Provide for 1-Methylamino-4-bromo anthraquinone
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1-Methylamino-4-bromo anthraquinone Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1-Methylamino-4-bromo anthraquinone
| Industry | Application | Process |
|---|---|---|
| Dye manufacturing | Intermediate for vat dyes (primarily used in the synthesis of Vat Olive T and similar dyes) | Condensation reaction |
| Dye manufacturing | Intermediate for disperse dyes | Arylation reaction |
| Textile printing and dyeing | Dyeing of cellulosic fibers such as cotton and linen | Vat dyeing process |
| Pigment manufacturing | Raw material for organic pigments and solvent dyes | Chemical synthesis |
Manufacturing Quality Control of 1-Methylamino-4-bromo anthraquinone
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Active Content (Purity) | High-Performance Liquid Chromatography (HPLC) | Utilizes a C18 reversed-phase chromatographic column with methanol/water or acetonitrile/water gradient elution. The main peak area is measured using a UV detector (λ = 480–520 nm), and content is calculated via the external standard method, suitable for high-precision quantitative analysis. |
| Bromine Content | Combustion Ion Chromatography (CIC) or Oxygen Bomb Combustion + Ion Chromatography | Sample is combusted in an oxygen bomb to convert bromine into bromide ions, which are then absorbed and quantified via ion chromatography with conductivity detection, in accordance with ASTM D5184 or ISO 11885 standards, enabling accurate determination of organic bromine content. |
| Impurity Profile (By-products) | HPLC-MS / LC-MS/MS | Combined with mass spectrometry detection to identify potential debrominated products, oxidation by-products, unreacted starting materials (e.g., 1-methylaminoanthraquinone), etc., providing structural information for qualitative identification and limit control of impurities. |
| Water Content | Karl Fischer Titration | Relies on the quantitative reaction between water and an iodine-sulfur dioxide-pyridine-methanol system, measured via electrochemical or volumetric methods, in compliance with GB/T 6283 or ISO 760, ensuring product dryness and stability. |
| Melting Point | Capillary Melting Point Apparatus | Sample is loaded into a capillary tube and slowly heated; the melting process is observed and compared with the reference value (literature value ~220–225°C) for preliminary purity assessment and batch consistency verification. |
| Color/Appearance | Visual Color Comparison / Spectrophotometry | Sample is dissolved in ethanol or DMF, and absorbance is measured in the visible region (e.g., 500 nm) and compared with standard color scales to evaluate whether the product's color meets industrial dye intermediate appearance requirements. |
| Solubility (Qualitative) | Solvent Solubility Test | Observation of solubility behavior in common solvents such as ethanol, acetone, DMF, and water to verify the typical polar characteristics of anthraquinone derivatives (soluble in organic solvents, insoluble in water), aiding in auxiliary identification. |
| Residual Solvents | Gas Chromatography (GC-FID/MS) | Headspace or direct injection is used to detect residual organic solvents potentially present from manufacturing, such as methanol, acetonitrile, and DMF, in compliance with ICH Q3C standards to ensure safety. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After acid digestion of the sample, heavy metals such as lead, cadmium, and mercury are measured using AAS, or multiple elements are simultaneously detected via ICP-MS, in compliance with REACH or RoHS limits for dye intermediates. |
Technical Specifications of 1-Methylamino-4-bromo anthraquinone
| Test Item | Specification |
|---|---|
| Appearance | White to pale yellow crystalline powder |
| Purity | >=98.0% (by GC-MS) |
| Melting Point | 245–249 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=10 ppm (as Pb) |
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 1-Methylamino-4-bromo anthraquinone
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1-Methylamino-4-bromo anthraquinone
Safety Information of 1-Methylamino-4-bromo anthraquinone
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 1-Methylamino-4-bromo anthraquinone
Industrial 1-Methylamino-4-bromo anthraquinone 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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