4044-65-9 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4044-65-9 |
| Product name | 4044-65-9 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty 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 4044-65-9
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4044-65-9 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4044-65-9
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of sulfur-containing heterocyclic compounds and pharmaceutical intermediates | Used as a bifunctional isothiocyanate in condensation reactions to construct heterocyclic frameworks |
| Materials Science | Preparation of polythiourea polymers | Undergoes step-growth polymerization with diamine monomers to produce polythiourea |
| Analytical Chemistry | Derivatization reagent for proteins or peptides | Reacts with amino groups to form thiourea derivatives for chromatographic or mass spectrometric analysis |
| Agrochemicals | Synthesis of biologically active sulfur-containing organic compounds | Serves as a key intermediate in constructing heterocyclic agrochemical molecules |
Manufacturing Quality Control of 4044-65-9
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., mono-isothiocyanate, thiourea derivatives) relative to main peak using gradient elution. |
| Residual Solvents | GC-FID | Identification and quantification of volatile organic solvents (e.g., acetone, toluene) by gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration based on the stoichiometric reaction of water with iodine and sulfur dioxide in pyridine-free reagent. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities (e.g., residual HCl, carboxylic acids) with standardized NaOH solution using phenolphthalein indicator. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and Cr after acid digestion, based on atomic emission intensities at characteristic wavelengths. |
| Sulfur Content | Combustion IC | Oxidative combustion followed by ion chromatographic determination of sulfate ions in the absorption solution. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, measured using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles against established reference standards under controlled lighting. |
| Particle Size Distribution | Laser Diffraction | Measurement of size distribution in dry powder form using Mie scattering theory and a laser diffraction particle analyzer. |
| Bulk Density | ASTM D1895 Method A | Determination of mass per unit volume for freely settled powder using a calibrated cylinder and balance. |
| Residue on Ignition | Gravimetric Analysis | Weighing of non-volatile residue remaining after high-temperature ashing (600-750 C) in a platinum crucible. |
Technical Specifications of 4044-65-9
| Test Item | Specification |
|---|---|
| Appearance | Tan crystalline powder |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 124–128°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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 4044-65-9
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4044-65-9
Packaging of 4044-65-9
Industrial 4044-65-9 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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