4-Nitrophenyl chloroformate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 7693-46-1 |
| Product name | 4-Nitrophenyl chloroformate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeReagent 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-Nitrophenyl chloroformate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Nitrophenyl chloroformate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Nitrophenyl chloroformate
| Industry | Application | Process |
|---|---|---|
| Pesticides | Intermediate for synthesizing carbamate insecticides | Reacted with amines to form carbamate structures |
| Pharmaceuticals | Intermediate for synthesizing pharmaceuticals, such as anti-inflammatory agents and antibiotic precursors | Coupled with amino acids or amines to form urea or carbamate linkages |
| Dyes | Intermediate for synthesizing azo dyes and reactive dyes | Condensed with aromatic amines to introduce reactive functional groups |
| Polymers | Modifier and crosslinker for polyurethane synthesis | Reacted with polyols or amine monomers to incorporate isocyanate precursor structures |
| Chemical Reagents | Acylation reagent for amino group protection in organic synthesis | Reacted with primary amines under mild conditions to form carbamate protecting groups |
Manufacturing Quality Control of 4-Nitrophenyl chloroformate
| Test Item | Common Test Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color, physical state, and transparency of the sample. Pure product is typically light yellow to yellow crystalline solid or powder, without visible impurities. |
| Content / Purity | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column and a UV detector (detection wavelength ~270–310 nm). Qualitative analysis is based on retention time, and quantification is performed using peak area to calculate the content of the main component. Effectively separates impurities from the target compound. |
| Content / Purity | UV-Visible Spectrophotometry (UV-Vis) | Utilizes the hydrolysis of p-nitrophenyl chloroformate under alkaline conditions to form p-nitrophenol, which has a strong absorption at ~400 nm. Quantification is performed using a standard curve, allowing for rapid screening of the active ester content. |
| Structural Confirmation | Fourier Transform Infrared Spectroscopy (FT-IR) | Identifies characteristic functional groups: such as C=O stretching vibration (~1750–1780 cm⁻¹, carbonate ester), aromatic ring C=C (~1500–1600 cm⁻¹), and NO₂ asymmetric stretching (~1530 cm⁻¹), to confirm molecular structure. |
| Structural Confirmation | Nuclear Magnetic Resonance Spectroscopy (¹H-NMR, ¹³C-NMR) | Measures proton and carbon NMR spectra in deuterated solvents (e.g., CDCl₃), analyzing aromatic protons (~7.5–8.3 ppm) and carbonate ester carbon signals (~150–155 ppm) to confirm chemical structure. |
| Moisture Content | Karl Fischer Titration | Titrimetric method for accurate determination of moisture content. Since p-nitrophenyl chloroformate is prone to hydrolysis, moisture must be strictly controlled (typically ≤0.5%). |
| Chloride Impurities | Ion Chromatography or Argentometry | Detects residual HCl or inorganic chloride ions to assess the effectiveness of post-synthesis washing steps. |
| Residual Solvents | Gas Chromatography (GC) | Detects residual organic solvents used during manufacturing (e.g., ethyl acetate, dichloromethane, toluene), in compliance with ICH guidelines. |
| Melting Point | Melting Point Determination | Determined using a melting point apparatus. The melting point of p-nitrophenyl chloroformate is approximately 78–82°C, useful for preliminary purity assessment and batch consistency checks. |
| Stability / Degradation Products | HPLC or TLC | Monitors the formation of degradation products such as p-nitrophenol and carbon dioxide during storage, to evaluate sample stability. |
Technical Specifications of 4-Nitrophenyl chloroformate
| Test Item | Specification |
|---|---|
| Appearance | White to orange crystalline powder |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | 74-78°C |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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-Nitrophenyl chloroformate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Nitrophenyl chloroformate
Packaging of 4-Nitrophenyl chloroformate
Industrial 4-Nitrophenyl chloroformate 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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