905302-42-3 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 905302-42-3 |
| Product name | 905302-42-3 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/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 905302-42-3
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 905302-42-3 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 905302-42-3
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Used as a protecting group precursor in the synthesis of peptide-based drugs or macrolide compounds | Acts as a carboxylic acid protecting group in solid-phase or solution-phase peptide synthesis; target molecular scaffolds are constructed after deprotection |
| Organic Synthesis | As a long-chain dicarboxylic acid derivative, used to construct complex lipids or polymer monomers | Introduces long hydrophobic segments via transesterification, condensation, or coupling reactions to modulate product physical properties |
| Materials Science | Used to prepare functional polymeric materials with tailored thermal stability and flexibility | Participates in condensation polymerization as a comonomer to impart biodegradability or biocompatibility to the resulting material |
Manufacturing Quality Control of 905302-42-3
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification based on peak area comparison against a certified reference standard using UV detection at 210 nm. |
| Related Substances | HPLC-UV | Separation and quantification of impurities relative to main peak using gradient reversed-phase chromatography. |
| Residual Solvents | GC-FID | Identification and quantification of volatile organic solvents by flame ionization detection after headspace sampling. |
| Water Content | Karl Fischer Titration | Electrochemical titration with iodine reagent to determine trace water content based on stoichiometric reaction. |
| Acid Value | Acid-Base Titration | Neutralization of free carboxylic acid groups with standardized NaOH solution using phenolphthalein indicator. |
| Color | Visual Comparison (APHA) | Comparison of sample solution color against platinum-cobalt standard solutions under controlled lighting. |
| Appearance | Visual Inspection | Assessment of physical state, clarity, and presence of visible particulates in solution or neat material. |
| Residue on Ignition | Gravimetric Analysis | Determination of non-volatile inorganic residue after high-temperature ashing and weighing. |
| Heavy Metals | ICP-OES | Multi-element quantification of metallic impurities following acid digestion and plasma excitation emission spectroscopy. |
| Chloride Content | Ion Chromatography | Separation and quantification of chloride anions using conductivity detection after aqueous extraction. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition determination by observing solid-to-liquid phase change in a capillary tube under controlled heating. |
| Bulk Density | USP <616> Method I | Measurement of mass per unit volume for free-flowing powder using a calibrated cylinder and tapping device. |
Technical Specifications of 905302-42-3
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 112–116°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | 45–55 mg KOH/g |
| Identification (NMR) | Conforms to reference spectrum |
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 905302-42-3
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 905302-42-3
Packaging of 905302-42-3
Industrial 905302-42-3 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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