N,N-Dimethyl-p-toluidine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 99-97-8 |
| Product name | N,N-Dimethyl-p-toluidine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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-Dimethyl-p-toluidine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk N,N-Dimethyl-p-toluidine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of N,N-Dimethyl-p-toluidine
| Industry | Application | Process |
|---|---|---|
| Coatings & Inks | Epoxy resin curing accelerator | Acts as a tertiary amine catalyst to accelerate the reaction between epoxy groups and curing agents (e.g., amines, anhydrides), reducing cure time and increasing crosslink density |
| Adhesives | Unsaturated polyester resin (UPR) curing accelerator | Works synergistically with peroxides (e.g., benzoyl peroxide) to initiate free-radical polymerization via electron transfer, enabling rapid room-temperature curing |
| Composites | FRP (fiber-reinforced plastic) molding aid | Promotes gelation and curing of UPR systems at ambient or moderate temperatures in hand lay-up, spray-up, or pultrusion processes, enhancing mechanical properties of finished parts |
| Printing Inks | Photosensitizer for UV/EB-curable inks | Acts as an electron donor in photoinitiating systems (e.g., in combination with benzophenone) to improve radical generation efficiency, accelerating both surface drying and through-drying of inks |
| Rubber Industry | Vulcanization accelerator for chloroprene rubber | Supports zinc oxide/magnesium oxide vulcanization systems to increase vulcanization rate and crosslink uniformity, improving heat resistance and aging performance |
| Organic Synthesis | Intermediate for pharmaceuticals and dyes | Used in structural modification and alkylation reactions for synthesizing antihistamines (e.g., tripelennamine derivatives), azo dyes, and fluorescent whitening agents |
Manufacturing Quality Control of N,N-Dimethyl-p-toluidine
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Purity (Main Component Content) | Gas Chromatography (GC) | Utilizes capillary columns (e.g., DB-5 or HP-5) with FID detection for separation and analysis, quantified via internal standard or external standard method. Suitable for determining DMPT content and organic impurities (such as unreacted raw materials and by-products). |
| Water Content | Karl Fischer Titration | Employs Karl Fischer reagent (containing iodine, sulfur dioxide, pyridine, and methanol) for electrochemical titration to determine trace water content, ideal for precise control of moisture levels (typically required < 0.1%). |
| Color (Appearance) | Platinum-Cobalt Colorimetric Method (APHA Color) | Compares sample color with standardized platinum-cobalt scale, expressed in Hazen units (Pt-Co), used to assess product appearance quality and detect discoloration due to oxidation or impurities. |
| Acid Value/Acidity | Acid-Base Titration | Titrates acidic impurities (e.g., carboxylic acids formed by oxidation) in the sample using standard sodium hydroxide solution, reported as mg KOH/g; used to control acid impurity levels and ensure product stability. |
| Boiling Point Range | Distillation (Atmospheric or Vacuum) | Measures boiling range using a precision distillation apparatus. Typical boiling point: 240–245°C (atmospheric pressure), used to verify product specifications and exclude contamination by high- or low-boiling impurities. |
| Melting Point (for Solid Samples) | Melting Point Apparatus Method | If the sample is solid (after low-temperature storage), its melting point range (~18–20°C) is determined using a melting point apparatus, used to confirm physical consistency and assist in authenticity verification. |
| Impurity Profile (Trace Impurities) | Gas Chromatography-Mass Spectrometry (GC-MS) | GC separates components followed by MS for structural identification, enabling detection and quantification of trace impurities (e.g., p-toluidine, N-methyl-p-toluidine, dimers), critical for quality control and process optimization of high-purity products. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After sample digestion, AAS or ICP-MS is used to measure lead, cadmium, mercury, arsenic, and other heavy metals, ensuring compliance with heavy metal limits (e.g., ≤5 ppm) for pharmaceutical or electronic-grade raw materials. |
| Refractive Index | Refractometer Measurement | Measures refractive index at 20°C or 25°C (typical value nD20 ≈ 1.595–1.600), serving as a physical constant for rapid identification and quality consistency assessment. |
| Water-Soluble Impurities | Water Extraction + Conductivity/Ultraviolet Absorption | Sample is mixed with water, shaken, and the aqueous phase separated; conductivity or UV absorbance is then measured to assess soluble inorganic salts or polar impurities, suitable for high-purity applications (e.g., electronic chemicals). |
Technical Specifications of N,N-Dimethyl-p-toluidine
| Test Item | Specification |
|---|---|
| Appearance | Colorless to light orange clear liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.548–1.552 |
| Relative Density (20°C/25°C) | 0.975–0.985 g/cm³ |
| Color (APHA/Pt-Co) | <=50 |
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-Dimethyl-p-toluidine
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NMR Spectra of N,N-Dimethyl-p-toluidine
Packaging of N,N-Dimethyl-p-toluidine
Industrial N,N-Dimethyl-p-toluidine 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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