1-Chlorohexane Sigma-Aldrich MM 818497 Replacement Guide
Benchmarking ≥98.0% GC Purity Against Sigma-Aldrich MM 818497 Lot Data
In high-precision organic synthesis, maintaining consistent reactant purity is critical for reproducibility. When evaluating a drop-in replacement for reference standards such as Sigma-Aldrich MM 818497, the primary metric of concern is Gas Chromatography (GC) purity. Our production batches consistently target a minimum assay of 98.0%, aligning with the stringent requirements expected for laboratory-grade alkyl halides. At NINGBO INNO PHARMCHEM CO.,LTD., we understand that variance in purity can alter reaction kinetics, particularly in nucleophilic substitution processes where 1-Chlorohexane serves as the electrophile.
Procurement managers often request side-by-side chromatograms to verify peak resolution. While specific lot data varies, the manufacturing process is controlled to minimize higher boiling point congeners and lower boiling solvents. For precise verification of a specific batch intended for your workflow, please refer to the batch-specific COA. This ensures that the 1-Chlorohexane supply meets your internal quality thresholds before integration into your synthesis route.
Comparative Physical Constants and Impurity Profiles for 1-Chlorohexane Substitution
Physical constants serve as the fingerprint for chemical identity. When substituting Hexyl chloride or n-Hexyl chloride from different suppliers, deviations in density or refractive index can indicate the presence of isomeric impurities or residual solvents. The table below outlines the standard technical parameters expected for industrial purity grades compared against typical literature values.
| Parameter | Standard Specification | Literature Reference | Measurement Method |
|---|---|---|---|
| Purity (GC) | ≥ 98.0% | ≥ 98.0% | GC-FID |
| Density (20°C) | 0.878 - 0.880 g/mL | 0.879 g/mL | ASTM D4052 |
| Boiling Point | 133 - 135°C | 134°C | Distillation |
| Refractive Index (20°C) | 1.417 - 1.419 | 1.418 | ASTM D1218 |
| Water Content | ≤ 0.05% | N/A | Karl Fischer |
Deviation in these values, particularly density, often signals the presence of 1-Chloro-n-hexane isomers or incomplete fractionation. For R&D teams scaling up from milligram to kilogram scales, maintaining these physical constants ensures that volumetric dosing equipment remains calibrated without requiring recalibration factors.
Decoding COA Parameters: Water Content and Distillation Range Compliance
Water content is a critical parameter for alkyl halides used in moisture-sensitive reactions, such as Grignard reagent formation or lithium-halogen exchange. Even trace moisture can quench organometallic intermediates, reducing yield and generating hazardous byproducts. Our standard specification limits water content to ≤ 0.05% via Karl Fischer titration. However, for highly sensitive applications, drying over molecular sieves may still be recommended depending on the specific reaction tolerance.
The distillation range is equally vital. A narrow boiling range indicates high fractional efficiency during manufacturing, reducing the likelihood of foreground or background impurities co-eluting during your process. A wide cut may suggest the presence of lighter solvents like hexane or heavier chlorinated byproducts. Consistency in the distillation range ensures that solvent removal steps during workup behave predictably. Please refer to the batch-specific COA for the exact distillation cut points of your shipment.
Validating Trace Metal Analysis and Halogenated Impurity Limits for Synthesis
Beyond standard purity assays, trace metal content can dictate the success of catalytic cycles. Iron, copper, or nickel residues, even at ppm levels, can poison palladium catalysts used in cross-coupling reactions where Chlorohexane is utilized as an alkylating agent. We monitor these profiles to ensure compatibility with sensitive catalytic systems.
From a field engineering perspective, there is a non-standard parameter that often goes unnoticed in basic COAs: the potential for trace acidity development during storage. Alkyl chlorides can undergo slow hydrolysis or thermal degradation, generating trace HCl. In automated synthesis modules where reagents are stored for extended periods, this accumulation can affect pump seals or degrade acid-sensitive substrates. We recommend nitrogen blanketing for long-term storage of bulk quantities to mitigate this edge-case behavior. This practical field knowledge helps prevent unexpected downtime in continuous flow reactors.
Industrial-Grade Bulk Packaging and Supply Chain Continuity for R&D Labs
Reliable logistics are as important as chemical quality. We supply 1-Chlorohexane in various configurations suitable for both laboratory pilot plants and industrial manufacturing. Standard packaging includes 210L lined steel drums and IBC totes, designed to prevent contamination and ensure safety during transit. Our focus is on physical packaging integrity and factual shipping methods to maintain product stability.
As a global manufacturer, we prioritize supply chain continuity. Disruptions in alkyl halide availability can stall production lines. We maintain strategic inventory levels to support ongoing R&D and commercial manufacturing needs. Our logistics team coordinates directly with freight forwarders to ensure compliance with hazardous material transport regulations, focusing on proper labeling and containment without making regulatory environmental guarantees.
Frequently Asked Questions
What are the commercial implications of using Hexyl chloride versus 1-Chlorohexane?
Commercially, Hexyl chloride is the common name for 1-Chlorohexane. Inventory classification should use the CAS number 544-10-5 to ensure specificity. Procurement systems often flag based on CAS to avoid receiving isomeric mixtures which may differ in price and reactivity.
How does water content affect the function of chlorohexane in synthesis?
The function of chlorohexane as an alkylating agent is compromised by water. Moisture leads to hydrolysis, forming hexanol and HCl, which reduces yield and can corrode reactor vessels. Specifications typically require ≤ 0.05% water for organometallic applications.
What technical specs confirm the absence of isomers of 1-Chlorohexane?
GC purity analysis combined with refractive index measurement confirms isomer absence. Isomers such as 2-chlorohexane have different boiling points and densities. A narrow distillation range and matching refractive index (1.418 at 20°C) indicate high linearity.
How many different protons are in 1-Chlorohexane and why does this matter for QC?
There are six distinct proton environments in 1-Chlorohexane. In QC, NMR spectroscopy utilizes these signals to verify structural integrity. Deviations in integration ratios can indicate the presence of synthetic byproducts or degradation.
Sourcing and Technical Support
Securing a reliable source for critical intermediates requires a partner with deep technical expertise. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing transparent data and robust logistics support for your chemical procurement needs. We focus on delivering consistent quality that aligns with your technical requirements. Ready to optimize your supply chain? Reach out to our logistics team today for comprehensive specifications and tonnage availability.