N,N-bis[3-(dimethylamino)propyl]-N',N'-dimethylpropane-1,3-diamine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 33329-35-0 |
| Product name | N,N-bis[3-(dimethylamino)propyl]-N',N'-dimethylpropane-1,3-diamine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty 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 33329-35-0
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 33329-35-0 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 33329-35-0
| Industry | Application | Process |
|---|---|---|
| Polyurethane Industry | Used as a gelation catalyst to balance foaming and gelation reactions in flexible and rigid polyurethane foams | Catalyzes the concurrent reactions of isocyanates with hydroxyl groups (gelation) and water (foaming) in mixed systems containing polyols, isocyanates, and water/physical blowing agents, improving foam cell openness and dimensional stability |
| Coatings and Adhesives | Used as an accelerator for epoxy resin curing to enhance low-temperature reactivity and crosslink density | Facilitates tertiary amine-catalyzed ring-opening of epoxy groups, accelerating crosslinking by amine- or anhydride-based curing agents in two-component, low-temperature, fast-drying coating systems |
| Organic Synthesis | Used as a multifunctional ligand or catalyst precursor in transition metal-catalyzed C–N coupling reactions | Provides a sterically balanced, moderately basic tridentate coordination environment in palladium/copper catalytic systems, increasing electron density at the metal center and improving reaction selectivity |
Manufacturing Quality Control of 33329-35-0
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) | Quantitative determination based on peak area comparison with a certified reference standard using a suitable capillary column and flame ionization detector. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in the sample; endpoint detected amperometrically or potentiometrically. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Comparison of sample color against APHA platinum-cobalt standard solutions at 455 nm or visual assessment under controlled lighting. |
| Density at 20 C | Digital Density Meter | Measurement of sample density via oscillating U-tube principle, calibrated with air and water standards. |
| Refractive Index at 20 C | Refractometry | Determination of refractive index by measuring angle of light refraction through the sample using a calibrated Abbe refractometer. |
| Acid Value | Acid-Base Titration | Titration of acidic impurities with standardized potassium hydroxide solution using phenolphthalein indicator; result expressed as mg KOH/g. |
| Amine Value | Acid-Base Titration | Back-titration after acylation with excess acetic anhydride; unreacted anhydride hydrolyzed and titrated to determine total primary/secondary amine content. |
| Residue on Ignition | Gravimetric Analysis | Heating sample at 750 C to constant weight; residue mass expressed as percentage of original sample weight. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after wet digestion, using air-acetylene flame AAS with appropriate calibration standards. |
| Chloride Content | Ion Chromatography (IC) | Separation and quantification of chloride ions on an anion-exchange column with suppressed conductivity detection. |
| Residual Solvents | Gas Chromatography (GC) with Headspace Sampling | Detection and quantification of volatile organic solvents using headspace GC-FID or GC-MS with internal standard calibration. |
| Appearance | Visual Inspection | Assessment of sample clarity and presence of suspended particles or phase separation in a clear glass container under natural or fluorescent lighting. |
Technical Specifications of 33329-35-0
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.465–1.475 |
| Relative Density (20°C/25°C) | 0.850–0.870 g/cm³ |
| Odor | Characteristic amine odor |
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 33329-35-0
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 33329-35-0
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Industrial 33329-35-0 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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