China Factory Direct
|
|
| CAS number | 37466-90-3 |
| Product name | Ethyl 3,4-diaminobenzoate |
| 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Pharmaceutical Intermediate | Used in the synthesis of benzimidazole- or benzotriazole-based structural units; participates in cyclization reactions to produce active pharmaceutical ingredients (APIs). |
| Pharmaceutical Industry | Synthesis of Local Anesthetics | Serves as an aromatic amine derivative in the synthesis of ester-type local anesthetic intermediates. |
| Dye Industry | Dye Intermediate | Employed in the synthesis of azo dyes or pigments via diazotization and coupling reactions. |
| Chemical Reagents | Organic Synthesis Reagent | Functions as a diaminosubstituted aromatic ester for preparing benzoheterocycle-containing organic compounds, applied in the construction of functional material molecules. |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at ~254 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., mono-amino analogs, hydrolysis products) using gradient HPLC-UV; identification via retention time matching and/or spiked standards. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify residual ethanol, ethyl acetate, or toluene based on calibrated external standards. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of Pb, Cd, As, Hg, and Ni after microwave-assisted acid digestion; detection by plasma optical emission spectroscopy. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration measuring water content via iodine generation and stoichiometric reaction with water in anhydrous methanol-based electrolyte. |
| Residue on Ignition | Gravimetric (Weight Loss on Ignition) | Determination of inorganic ash content by ignition at 700–750 °C followed by precise weighing of residual residue. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement using calibrated capillary apparatus per USP <741>, reporting onset and clear point. |
| Appearance & Color | Visual Inspection / APHA Color Scale | Subjective assessment of crystallinity and color intensity compared against APHA platinum-cobalt standard solutions. |
| Acid Value | Acid-Base Titration (NaOH, phenolphthalein) | Neutralization of free carboxylic acid groups with standardized sodium hydroxide solution; endpoint detected by indicator color change. |
| Chloride Impurity | Ion Chromatography (IC) | Quantitative separation and detection of chloride ions using suppressed conductivity detection after aqueous extraction and filtration. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light at 589 nm (Na-D line) to confirm chiral purity and absence of racemization. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder dispersion using laser diffraction to determine D10, D50, D90 values per ISO 13320. |
| Microbial Limits | Membrane Filtration / Plate Count | Enumeration of aerobic microorganisms and absence testing for specified pathogens (e.g., E. coli, S. aureus) per USP <61> and <62>. |
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 128–132°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
|
|
|
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.