N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 54381-16-7 |
| Product name | N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate |
| 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 N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate
| Industry | Application | Process |
|---|---|---|
| Cosmetics | Intermediate for hair dyes, providing brown to black shades in oxidative hair coloring products | Used in combination with p-phenylenediamine derivatives; undergoes oxidative coupling with hydrogen peroxide under alkaline conditions to form high-molecular-weight pigments deposited within the hair cortex |
| Textile Dyeing and Printing | Intermediate for reactive and mordant dyes | Participates in diazotization-coupling reactions or serves as a hydroxyethyl-substituted aromatic amine component to modify cellulose or wool fibers |
| Pharmaceutical Intermediates | Structural building block for antifungal agents and certain vasoactive compounds | Undergoes multi-step organic synthesis—including sulfonation, alkylation, or cyclization—to construct heterocyclic systems or side chains containing a dihydroxyethylamino group |
Manufacturing Quality Control of N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate
| Test Item | Common Testing Methods | Method Summary |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color, physical state, and presence of impurities under natural or standard lighting; it should typically be white to off-white crystalline powder. |
| Identification | Infrared Spectroscopy (IR) High-Performance Liquid Chromatography (HPLC) Proton Nuclear Magnetic Resonance (¹H NMR) |
Confirm molecular structure by comparing characteristic IR absorption peaks; matching HPLC retention time with reference standard; ¹H NMR showing characteristic chemical shifts and integral ratios. |
| Assay | High-Performance Liquid Chromatography (HPLC) | Using a reversed-phase C18 column and appropriate mobile phase (e.g., methanol-water or acetonitrile-buffer system) with isocratic or gradient elution. Detection by UV detector (typically around 254 nm). Quantification via external standard method. Purity should be ≥98.0% or as specified in pharmacopoeia. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Use high-sensitivity HPLC conditions (e.g., gradient elution) to separate and quantify impurities such as synthesis by-products and degradation products. Individual impurity usually ≤0.5%, total impurities ≤1.0%. |
| Loss on Drying | Thermogravimetric Analysis (TGA) or Constant Weight Drying at Atmospheric Pressure | Dry the sample to constant weight at 105°C and measure weight loss to assess moisture and volatile content. Typically required to be ≤1.0%. |
| Sulfated Ash | Ignition to Constant Weight | Sample is ignited at high temperature (approximately 600–800°C), and the residue (inorganic matter) is weighed. Used to control inorganic impurities. Typically limited to ≤0.1%. |
| pH Value | pH Meter Method | Prepare an aqueous solution of defined concentration (e.g., 1% w/v), and measure pH using a calibrated pH meter. Generally acceptable range is 3.0–6.0. |
| Sulfate Content | Ion Chromatography (IC) or Gravimetric/Turbidimetric Methods | Quantify sulfate ions using ion chromatography, or determine via barium sulfate precipitation followed by turbidimetry or gravimetry, to verify compliance with stoichiometric ratio (as this substance is in sulfate form). |
| Water Content | Karl Fischer Titration | Use volumetric or coulometric Karl Fischer titration to accurately determine water content in the sample. Typically required to be ≤2.0%. |
| Residual Solvents | Gas Chromatography (GC) | Headspace or direct injection GC to detect residual organic solvents from synthesis (e.g., methanol, ethanol, dichloromethane), complying with ICH Q3C limits. |
Technical Specifications of N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate
| Test Item | Specification |
|---|---|
| Appearance | White to almost white powder or crystals |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 210-215°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
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 N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate
Safety Information of N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate
| Pictograms |   |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate
Industrial N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate 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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