3355-28-0 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 3355-28-0 |
| Product name | 3355-28-0 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty 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) |
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Documents We Provide for 3355-28-0
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3355-28-0 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3355-28-0
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | Organic synthesis intermediate | Used to construct complex molecular frameworks and participate in coupling and addition reactions for the preparation of pharmaceuticals and functional materials |
| Pharmaceutical Industry | Drug development intermediate | Serves as a key precursor in synthetic pathways for bioactive compounds, including anticancer and antimicrobial agents |
| Agrochemical Industry | Agrochemical intermediate | Applied in structural modification and optimization during the synthesis of insecticides, fungicides, and other agrochemical products |
| Materials Science | Functional material synthesis | Involved in the construction of conjugated polymers or optoelectronic materials for organic semiconductor research |
Manufacturing Quality Control of 3355-28-0
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Purity | Gas Chromatography (GC) | Utilizes gas chromatography to separate sample components, with quantification of the main component performed via area normalization or external standard method. High sensitivity and good reproducibility. Suitable for volatile organic compounds such as 1-bromo-2-butyn. |
| Impurity Content | Gas Chromatography-Mass Spectrometry (GC-MS) | Combines the separation capability of GC with the structural identification power of MS, enabling qualitative and quantitative analysis of trace impurities (e.g., unreacted raw materials, by-products, degradation products). |
| Water Content | Karl Fischer Titration | Measures trace water content using coulometric or volumetric methods, suitable for quality control of organic solvents and moisture-sensitive compounds. Simple operation and high accuracy. |
| Appearance and Color | Visual Color Comparison Method | Observes sample appearance (e.g., clarity, presence of suspended particles) under standardized lighting conditions and compares color intensity with reference color solutions to determine compliance with specifications. |
| Density | Density Meter Method or Specific Gravity Bottle Method | Determines sample density at constant temperature using digital density meters or specific gravity bottles, serving as a physical constant for auxiliary identification and consistency assessment across batches. |
| Refractive Index | Abe Refractometer Method | Measures refractive index at a specified temperature, used for rapid identification of substances and control of batch-to-batch consistency. |
| Bromine Content (Elemental Analysis) | Oxygen Bomb Combustion + Ion Chromatography/Titration | Sample is combusted in an oxygen bomb to convert bromine into bromide ions, followed by quantification using ion chromatography or silver nitrate titration to verify molecular composition consistency. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Uses headspace injection technology to detect volatile residual solvents (e.g., diethyl ether, n-hexane), avoiding matrix interference and enhancing detection sensitivity. |
| Stability-Related Impurities | Accelerated Stability Testing + GC Monitoring | After storing samples under elevated temperature or light exposure for a set period, new impurities or decrease in main component concentration are monitored by GC to evaluate storage stability. |
Technical Specifications of 3355-28-0
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.465–1.475 |
| Relative Density (20°C/25°C) | 1.13–1.15 g/cm³ |
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 3355-28-0
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3355-28-0
Packaging of 3355-28-0
Industrial 3355-28-0 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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