2,2'-((4-((2-Hydroxyethyl)amino)-3-nitrophenyl)imino)bisethanol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 33229-34-4 |
| Product name | 2,2'-((4-((2-Hydroxyethyl)amino)-3-nitrophenyl)imino)bisethanol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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 33229-34-4
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 33229-34-4 Supplier from China
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Industrial Applications of 33229-34-4
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Used as a diazo component in azo dyes; employed in synthesizing dark-colored acidic dyes (e.g., black, blue) and metal-complex dyes | Coupling reaction with aromatic amines or phenols in acidic medium to form azo dyes; commonly applied in dyeing wool, silk, and leather |
| Textile Printing & Dyeing | Used as an intermediate for reactive dyes to impart excellent wet and light fastness to textiles | After chlorination or fluorination activation, undergoes nucleophilic substitution with cellulose hydroxyl groups to form covalent bonds |
| Pharmaceutical Intermediates | Used in synthesizing benzimidazole derivatives with anti-inflammatory and antimicrobial activity | Multi-step organic synthesis—including cyclization, reduction, and alkylation—to construct the heterocyclic core structure |
Manufacturing Quality Control of 33229-34-4
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 254 nm, based on peak area comparison against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of structurally related impurities using gradient HPLC-UV; identification by retention time matching and/or spiked standards. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify volatile organic solvents (e.g., ethanol, DMF, toluene) against calibration curves. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration with iodine-based reagent to determine trace water content via electrochemical reaction stoichiometry. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and other heavy metals after acid digestion, using inductively coupled plasma optical emission spectroscopy. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column with suppressed conductivity detection. |
| Sulfate Impurity | Ion Chromatography | Separation and quantification of sulfate ions using anion-exchange column with suppressed conductivity detection. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determination of pH in a 1% w/v aqueous suspension using calibrated glass electrode and pH meter. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed as the temperature range at which solid-to-liquid phase change occurs under controlled heating rate. |
| Loss on Drying | Gravimetric Method | Mass loss measured after drying sample at 105 C for 2 hours under vacuum or forced-air oven, expressed as weight percent. |
| Residue on Ignition | Gravimetric Method | Inorganic residue mass determined after charring and incinerating sample at 600 C in a platinum crucible. |
| Bulk Density | USP <616> Tap Density Method | Determined by measuring the volume occupied by a known mass of powder after mechanical tapping in a calibrated cylinder. |
Technical Specifications of 33229-34-4
| Test Item | Specification |
|---|---|
| Appearance | Brown crystalline powder |
| Purity | >=98.5% |
| Melting Point | 142-146°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Solubility | Freely soluble in ethanol, methanol; slightly soluble in water |
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 33229-34-4
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 33229-34-4
Industrial 33229-34-4 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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