3-Aminopropylmethyldiethoxysilane Trade Name To Cas Number Mapping
Cross-Referencing Dynasylan and DOWSIL Trade Names to CAS 3179-76-8 for Procurement Accuracy
In industrial procurement, reliance on proprietary trade names often introduces supply chain fragility. For 3-Aminopropylmethyldiethoxysilane, the universal identifier is CAS 3179-76-8. While legacy specifications may reference trade names such as Dynasylan 1505 or DOWSIL Z-6015, these identifiers are subject to discontinuation or regional formulation shifts. At NINGBO INNO PHARMCHEM CO.,LTD., we prioritize CAS-based validation to ensure chemical identity remains constant regardless of the supplier branding. This approach mitigates the risk of receiving alternative silane coupling agents with differing alkyl chain lengths or functional group densities.
Procurement managers must verify that any equivalent, whether labeled as KBE-902 or A-2100, strictly adheres to the molecular formula C8H21NO2Si. Deviations in the alkoxy group (e.g., methoxy vs. ethoxy) significantly alter hydrolysis rates and bonding performance in composite manufacturing. For detailed product specifications and availability, review our 3-Aminopropylmethyldiethoxysilane adhesion promoter resin portfolio. Establishing the CAS number as the primary contract parameter ensures that surface modifier performance remains consistent across production batches.
Technical Specifications and Purity Grades for 3-Aminopropylmethyldiethoxysilane Contract Validation
Contract validation requires precise numerical boundaries for physical properties. Standard industrial purity grades typically target an assay of ≥98.0%, though specific applications in electronics or biomedical surface functionalization may demand tighter controls. The following table outlines critical technical parameters derived from standard industry specifications. Note that exact batch values may vary slightly based on distillation cuts and purification methods.
| Parameter | Standard Specification | Typical Industrial Range |
|---|---|---|
| CAS Registry Number | 3179-76-8 | N/A |
| Molecular Weight | 191.34 g/mol | N/A |
| Appearance | Colorless transparent liquid | Clear, no particulates |
| Assay (Purity) | ≥98.0% | 97.0% - 99.0% |
| Density (25°C) | 0.916 g/mL | 0.9110 - 0.9210 g/cm³ |
| Refractive Index (25°C) | N/A | 1.4220 - 1.4320 |
| Boiling Point | 85-88 °C @ 8 mmHg | Please refer to the batch-specific COA |
| Flash Point | 85°C (Closed Cup) | Please refer to the batch-specific COA |
When validating contracts, pay close attention to the density and refractive index ranges. These physical constants are reliable indicators of bulk purity without requiring complex chromatography. A density deviation outside the 0.9110~0.9210 g/cm³ range often signals contamination with higher molecular weight siloxanes or residual solvents. For volumetric dosing systems, even minor density shifts can alter the stoichiometric ratio in resin formulations, affecting flexural strength in foundry applications.
Verifying Certificate of Analysis Parameters Against Branded Chemical Identity Specifications
A Certificate of Analysis (COA) is the primary document for verifying chemical identity, but it must be scrutinized against branded specifications. Discrepancies often arise in gas chromatography (GC) area normalization methods versus internal standard quantification. If a supplier claims equivalence to a major brand but reports purity using different analytical methods, the data is not directly comparable. We recommend reviewing our technical note on 3-Aminopropylmethyldiethoxysilane Analytical Method Discrepancies In Quality Contracts to understand how testing protocols impact reported values.
Key parameters to cross-check include the amine value and hydrolyzable chloride content, which are critical for corrosion-sensitive applications in adhesives and sealants. High chloride levels can catalyze unwanted side reactions in metal primers. Furthermore, ensure the COA lists the specific isomer distribution if applicable, though for CAS 3179-76-8, the structure is generally defined as 3-[diethoxy(methyl)silyl]propan-1-amine. Consistency in these parameters ensures the silane coupling agent performs as expected in promoting interaction between organic and inorganic materials.
Bulk Packaging Standards and Moisture-Sensitive Storage Protocols for Silane Logistics
3-Aminopropylmethyldiethoxysilane is air and moisture sensitive, reacting with water to form silanols and eventually polysiloxanes. This reactivity necessitates strict packaging standards. Standard bulk shipments utilize 210L drums or IBC totes lined with inert materials to prevent premature hydrolysis. The UN number for transport is typically UN 3267, classified under Hazard Class 8 (Corrosive). Packing groups may vary (II or III) depending on the specific concentration and regional transport regulations, so always verify the shipping documentation against local compliance requirements.
From a field engineering perspective, standard COAs do not capture environmental stress behaviors during transit. In our experience handling bulk logistics, we observe that viscosity shifts can occur during winter shipping if temperatures drop significantly, although the melting point is listed below -20°C. More critically, exposure to high humidity during loading operations can accelerate surface hydrolysis, leading to haze formation or increased acidity upon arrival. We recommend nitrogen blanketing for bulk storage tanks and immediate sealing after drum opening. For long-term storage, maintain conditions in a cool, dry place away from sunshine to preserve the 12-month recommend shelf life. Proper handling ensures the surface modifier retains its hydrophobicity modification capabilities.
Mitigating Supply Chain Risk by Prioritizing CAS 3179-76-8 Over Proprietary Trade Names
Supply chain resilience depends on chemical interoperability. By specifying CAS 3179-76-8 rather than a single manufacturer's trade name, procurement teams can qualify multiple sources without reformulating. This strategy prevents production stoppages due to discontinued products or allocation limits from major brands. However, structural equivalence must be validated to ensure performance benchmarks are met. Our engineering team supports clients in 3-Aminopropylmethyldiethoxysilane Structural Equivalence Validation to confirm that alternative sources match the adhesion promotion and durability requirements of composite manufacturing.
Prioritizing the CAS number allows for broader sourcing options while maintaining technical integrity. Whether used in cold-curing phenolic foundry resins or semiconductor device production, the chemical identity remains the constant variable. NINGBO INNO PHARMCHEM CO.,LTD. supports this approach by providing consistent industrial purity grades and transparent documentation. This reduces the risk associated with proprietary supply chains and ensures continuity in adhesives, sealants, and coating applications.
Frequently Asked Questions
How do I verify if a supplier's equivalent matches the major brand specifications?
Verify the CAS number is strictly 3179-76-8 and compare the COA parameters for density, refractive index, and assay against the branded specification sheet. Request side-by-side performance testing in your specific formulation.
Can I use different trade names interchangeably in my production formula?
Only if the chemical identity (CAS) and purity grades match. Different trade names may imply different stabilizers or packaging histories that affect moisture content. Always validate with a pilot batch.
What documentation is required to confirm chemical identity for customs?
Certificates of Analysis (COA), Safety Data Sheets (SDS), and Certificates of Origin (COO) are standard. Ensure the CAS number is prominently displayed on all documents to avoid classification delays.
Does the purity level affect the adhesion performance in sealants?
Yes. Lower purity may introduce impurities that interfere with the coupling mechanism between organic polymers and inorganic substrates, reducing bond strength and durability.
Sourcing and Technical Support
Securing a reliable supply of 3-Aminopropylmethyldiethoxysilane requires a partner who understands both the chemical nuances and logistical challenges. By focusing on CAS-based procurement and rigorous COA validation, you ensure consistent performance in your applications. Ready to optimize your supply chain? Reach out to our logistics team today for comprehensive specifications and tonnage availability.