4-ETHYLPHENYL ISOCYANATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 23138-50-3 |
| Product name | 4-ETHYLPHENYL ISOCYANATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum |
| 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-ETHYLPHENYL ISOCYANATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-ETHYLPHENYL ISOCYANATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-ETHYLPHENYL ISOCYANATE
| Industry | Application | Process Description |
|---|---|---|
| Pharmaceuticals | Pharmaceutical Intermediates | Used as intermediates in the synthesis of certain anti-inflammatory and antitumor drugs |
| Pesticides | Fungicide Synthesis | Serves as a structural unit or intermediate in fungicidal agrochemicals |
| Materials Science | Polyurethane Materials | Reacts with polyols to produce polyurethane foam materials |
| Chemical Synthesis | Organic Synthesis Intermediates | Used to prepare isocyanate derivatives, such as carbamate compounds |
| Coatings & Adhesives | Raw Material for Specialty Coatings/Adhesives | Participates in the preparation of crosslinkers for high-performance coatings and adhesives |
Manufacturing Quality Control of 4-ETHYLPHENYL ISOCYANATE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative determination based on peak area comparison against a certified reference standard under validated chromatographic conditions. |
| Water Content | Karl Fischer Titration (Coulometric mode) | Electrochemical titration where iodine is generated in situ to react stoichiometrically with water; endpoint detected amperometrically. |
| Acid Number | Acid-Base Potentiometric Titration | Neutralization of acidic impurities (e.g., residual HCl, carboxylic acids) with standardized KOH solution; equivalence point determined by pH electrode. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Sample is incinerated at 500–600 °C to oxidize organic matter; inorganic residue is weighed after cooling in a desiccator. |
| Heavy Metals (as Pb) | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Atomization and excitation of metals in high-temperature plasma; quantification via element-specific emission line intensities. |
| Chloride Content | Ion Chromatography (IC) with Conductivity Detection | Separation of chloride anions on an anion-exchange column followed by quantitative detection based on electrical conductivity. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement (430 nm) | Comparison of sample solution color intensity against APHA platinum-cobalt standards; spectrophotometric method measures absorbance at 430 nm. |
| Residual Solvents (e.g., Toluene, Xylene) | Headspace Gas Chromatography (HS-GC) with FID | Volatile solvents partitioned into headspace above heated sample; quantified via GC-FID using calibration curves. |
| Isocyanate Content (NCO %) | Dibutylamine Back-Titration | Reaction of NCO groups with excess dibutylamine, followed by acid titration of unreacted amine to determine NCO equivalent weight. |
| Appearance (Clarity & Particulates) | Visual Inspection in Standardized Light Box | Assessment of liquid clarity, presence of suspended particles, or phase separation under controlled white-light illumination per USP <941>. |
Technical Specifications of 4-ETHYLPHENYL ISOCYANATE
| 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) | 1.540–1.545 |
| Relative Density (20°C/25°C) | 1.030–1.040 g/cm³ |
| Identification (IR) | Conforms to reference spectrum |
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-ETHYLPHENYL ISOCYANATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-ETHYLPHENYL ISOCYANATE
Packaging of 4-ETHYLPHENYL ISOCYANATE
Industrial 4-ETHYLPHENYL 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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