China Factory Direct
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| CAS number | 628-30-8 |
| Product name | PROPYL ISOTHIOCYANATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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) |
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 Chemicals | Pharmaceutical Intermediates | Serves as an alkylating agent or building block in the synthesis of heterocyclic compounds and amino acid derivatives for active pharmaceutical ingredient (API) production. |
| Agrochemicals | Agrochemical Intermediates | Used to synthesize specific carbamate- or urea-based pesticides, functioning as a reagent to introduce isocyanate groups or propyl moieties. |
| Organic Synthesis | Protecting Group Reagent | Applied to protect hydroxyl or amino functional groups during complex molecule synthesis, preventing undesired side reactions in subsequent steps. |
| Organic Synthesis | Chemical Reagent | Leverages its highly reactive isocyanate group (–NCO) to undergo addition reactions with nucleophiles such as alcohols and amines, yielding corresponding carbamate or urea derivatives. |
| Polymer Materials | Modification Additive | Employed to modify or crosslink polymer chains, thereby enhancing material properties—including thermal stability and mechanical strength. |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantitative determination based on peak area comparison against a certified reference standard using a non-polar capillary column. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration where iodine is generated in situ to react stoichiometrically with water; endpoint detected amperometrically. |
| Acidity (as HCl) | Acid-Base Titration with NaOH | Neutralization of acidic impurities (e.g., HCl, carbamic acid) using standardized sodium hydroxide solution and potentiometric or visual endpoint detection. |
| Color | APHA Color Scale (Visual Comparison) | Comparison of sample color against platinum-cobalt standard solutions using a Nessler tube under controlled lighting conditions. |
| Density at 20 C | Digital Density Meter (Oscillating U-tube) | Measurement of sample density based on resonant frequency shift of a vibrating U-shaped tube filled with the liquid. |
| Refractive Index at 20 C | Abbe Refractometer | Determination of refractive index by measuring the critical angle of total internal reflection at the prism-sample interface. |
| Residue on Evaporation | Gravimetric Analysis | Evaporation of a measured sample volume to dryness under controlled temperature and vacuum, followed by weighing of non-volatile residue. |
| Chloride Ion Content | Ion Chromatography (IC) with Conductivity Detection | Separation of anions on an ion-exchange column and quantitative detection via suppressed conductivity measurement. |
| Heavy Metals (as Pb) | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Atomization and excitation of metals in high-temperature plasma; quantification based on element-specific emission intensities. |
| Aldehyde Impurities (e.g., propionaldehyde) | Gas Chromatography-Mass Spectrometry (GC-MS) | Separation by GC followed by electron ionization and mass spectral identification/quantification using selected ion monitoring. |
| Free Isocyanic Acid | Derivatization GC-FID (with dibutylamine) | Reaction of free isocyanate groups with excess dibutylamine to form stable urea derivatives, followed by GC quantification of unreacted amine. |
| Non-Volatile Residue (NVR) | Gravimetric Analysis after Solvent Extraction | Extraction of volatile components with low-boiling solvent (e.g., pentane), filtration, evaporation, and gravimetric determination of insoluble residue. |
| Test Item | Specification |
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| Appearance | Colorless to light yellow, clear liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.412–1.418 |
| Relative Density (20°C/25°C) | 0.935–0.945 g/cm³ |
| Odor | Characteristic pungent odor |
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| 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.