4-Chlorophenyl isocyanate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 104-12-1 |
| Product name | 4-Chlorophenyl isocyanate |
| 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 4-Chlorophenyl isocyanate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Chlorophenyl isocyanate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Chlorophenyl isocyanate
| Industry | Application | Process |
|---|---|---|
| Pesticides | Insecticides | Synthesized via chemical reaction |
| Pharmaceuticals | Intermediates | Used in constructing drug molecules |
| Dyes | Raw material | Applied in dye and pigment synthesis |
Manufacturing Quality Control of 4-Chlorophenyl isocyanate
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Purity/Content Determination | High-Performance Liquid Chromatography (HPLC) | Uses a reverse-phase C18 column with methanol-water or acetonitrile-water as the mobile phase, and ultraviolet detection (typically at 240–260 nm). The main component content of p-chlorophenyl isocyanate is calculated using external standard method or area normalization. |
| Isocyanate Group (–NCO) Content | Titration Method (Dibutylamine Method) | Utilizes the reaction between isocyanate groups and excess dibutylamine to form urea; the remaining dibutylamine is back-titrated with standardized hydrochloric acid. The –NCO content is calculated based on the amount of acid consumed. This is a classic method for determining isocyanate activity. |
| Moisture Content | Karl Fischer Titration | Performs either volumetric or coulometric Karl Fischer titration using an automated moisture analyzer. Based on the quantitative reaction between iodine and sulfur dioxide in the presence of pyridine/imidazole and water, this method accurately measures trace amounts of moisture to prevent hydrolysis of isocyanate groups. |
| Appearance and Color | Visual Comparison or Colorimeter Method | Observes sample color and transparency under specified conditions, or uses platinum-cobalt standard color solutions or a colorimeter to measure color values, assessing product discoloration due to oxidation or impurities. |
| Volatile Impurities / Residual Solvents | Gas Chromatography (GC) | Employs capillary columns and FID detectors, using headspace injection or direct injection to separate and quantify residual solvents (e.g., toluene, chlorobenzene) or other low-boiling-point impurities. |
| Free Chlorobenzene (By-product) | Gas Chromatography-Mass Spectrometry (GC-MS) or HPLC | Uses GC-MS for qualitative and quantitative analysis, or employs HPLC with UV detection to monitor unreacted starting material (chlorobenzene) or side reaction by-products, ensuring product purity. |
Technical Specifications of 4-Chlorophenyl isocyanate
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | 64–67°C |
| Identification (IR) | Conforms to reference spectrum |
| Odor | Pungent, characteristic isocyanate 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 4-Chlorophenyl isocyanate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 4-Chlorophenyl isocyanate
Industrial 4-Chlorophenyl isocyanate 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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