11-Bromo-1-Undecene Equivalent For Tci B3576 | High Purity
Benchmarking ≥97.0% GC Purity Against TCI America B3576 Specifications
In pharmaceutical and polymer R&D, the purity profile of organic building blocks directly influences downstream reaction yields. While standard market grades, such as the TCI America B3576 specification, typically guarantee ≥94.0% purity by Gas Chromatography (GC), advanced synthesis pathways often demand tighter impurity controls. At NINGBO INNO PHARMCHEM CO.,LTD., our manufacturing process targets ≥97.0% GC purity to minimize side reactions during coupling steps.
The difference between 94% and 97% purity is not merely numerical; it represents a significant reduction in trace halogenated byproducts. These impurities, often dibromo-alkanes resulting from over-bromination, can act as electrophilic interferents in Grignard or lithiation reactions. By optimizing the bromination stoichiometry and employing fractional distillation under reduced pressure, we reduce these specific trace contaminants. This level of quality assurance ensures that your process chemistry remains robust without requiring additional purification steps that erode overall yield.
Critical Physicochemical Specifications for CAS 7766-50-9 in R&D Synthesis
Understanding the physical properties of 11-Bromo-1-Undecene (CAS 7766-50-9) is essential for handling and process design. This halogenated hydrocarbon presents as a colorless to pale yellow liquid. Its boiling point and density are critical parameters for separation processes. Below is a comparison of standard physical properties relevant to process engineering.
| Parameter | Standard Grade (Typical) | High Purity Target | Test Method |
|---|---|---|---|
| Purity (GC) | ≥94.0% | ≥97.0% | GC-MS |
| Boiling Point | 149-150 °C @ 35 mmHg | 149-150 °C @ 35 mmHg | Distillation |
| Density | 1.063 g/mL @ 25 °C | 1.063 g/mL @ 25 °C | ASTM D4052 |
| Refractive Index | 1.470 - 1.475 | 1.470 - 1.475 | ASTM D1218 |
| Water Content | ≤0.1% | ≤0.05% | Karl Fischer |
Note that boiling point data is pressure-dependent. The values listed above reflect vacuum distillation conditions commonly used in purification. For specific batch data, please refer to the batch-specific COA. Maintaining low water content is particularly vital when this intermediate is used in moisture-sensitive organometallic reactions.
Interpreting Certificate of Analysis (COA) Parameters for Impurity Validation
A standard Certificate of Analysis (COA) typically lists purity, density, and refractive index. However, for critical R&D applications, engineers must look beyond these baseline metrics. One non-standard parameter we monitor closely is the acid value and peroxide content, which are not always included in basic documentation but are crucial for storage stability.
From a field engineering perspective, trace acidic impurities can catalyze premature polymerization of the terminal alkene group during storage. This is particularly relevant if the material is stored for extended periods before use. We have observed that batches with unneutralized acidic residues show increased viscosity shifts at sub-zero temperatures, indicating the onset of oligomerization. Therefore, our quality control includes a neutralization step post-synthesis. When reviewing a COA, request data on free acid content or perform a quick pH test on an aqueous extract if the material will be stored for more than six months. This proactive validation prevents batch failure during critical synthesis windows.
Bulk Packaging Options and Nitrogen Blanketing Storage Protocols
Proper logistics and packaging are essential to maintain the integrity of 11-Bromoundec-1-ene. The material is sensitive to oxidation and moisture. We supply this chemical intermediate in robust physical packaging designed for industrial transport. Standard options include 210L drums lined with phenolic resin or IBC totes for larger volume requirements.
To prevent oxidative degradation, all containers are nitrogen-blanketed prior to sealing. This displaces oxygen and minimizes the risk of peroxide formation during transit. It is important to note that while we ensure secure physical packaging and inert atmosphere loading, customers are responsible for adhering to local storage regulations upon receipt. Storage temperatures should be maintained between 2–8 °C under inert gas (nitrogen or Argon) to maximize shelf life. Avoid exposure to strong oxidizing agents. For detailed handling instructions, refer to the provided Safety Data Sheet (SDS) accompanying each shipment.
Sourcing 11-Bromo-1-Undecene Equivalents for Consistent Batch Performance
Consistency in raw material quality is the backbone of reproducible research. Sourcing an equivalent to standard catalog numbers requires a manufacturer with stable synthesis routes and rigorous quality control. NINGBO INNO PHARMCHEM CO.,LTD. maintains a consistent manufacturing process to ensure that batch-to-batch variability is minimized. This reliability allows R&D teams to scale from gram-scale experimentation to kilogram-scale production without re-validating the entire synthesis pathway.
We understand the need for speed and reliability in the supply chain. Our facility is equipped to handle custom synthesis requests and bulk orders with fast delivery protocols. For detailed specifications and availability, view our high-purity 11-Bromo-1-Undecene supply options. By partnering with a dedicated manufacturer, you secure a supply chain that prioritizes technical specifications over generic commodity trading.
Frequently Asked Questions
What is the minimum order quantity for bulk packaging?
Our minimum order quantity varies based on the packaging type. For 210L drums, the standard MOQ is typically one drum. For smaller R&D quantities, we offer flexible packaging options. Please contact our sales team for specific volume requirements.
Can you provide a COA before shipment?
Yes, a preliminary COA can be provided upon request for batch validation. The final COA accompanying the shipment will reflect the exact test results of the dispatched lot. Please refer to the batch-specific COA for final numerical specifications.
How should I handle viscosity changes during winter shipping?
11-Bromo-1-Undecene may thicken at sub-zero temperatures. This is a physical change and does not indicate degradation. Allow the container to reach room temperature naturally before opening. Do not apply direct heat to the drum.
Is this product suitable for polymer dielectric synthesis?
Yes, this chemical intermediate is commonly used in advanced polymer dielectrics and organic synthesis. Ensure the purity grade matches your specific reaction requirements.
Sourcing and Technical Support
Reliable sourcing of specialized chemical intermediates requires a partner who understands both the chemistry and the logistics. We are committed to providing high-quality materials supported by transparent documentation and secure packaging. Our team is ready to assist with technical queries regarding application and handling. Partner with a verified manufacturer. Connect with our procurement specialists to lock in your supply agreements.