BZ-OSU Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 23405-15-4 |
| Product name | BZ-OSU |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/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 BZ-OSU
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk BZ-OSU Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of BZ-OSU
| Industry | Application | Process |
|---|---|---|
| Biopharmaceuticals / Antibody-Drug Conjugate (ADC) Development | Preparation of antibody-drug conjugates (ADCs) as linkers or reactive intermediates | Nucleophilic reaction with primary amines (e.g., lysine residues) on antibodies to form stable amide bonds |
| Peptide Synthesis | Solid-phase peptide synthesis and modification (e.g., peptide coupling, N-terminal modification) | Activation of the carboxyl group of peptides in alkaline buffer (e.g., carbonate/bicarbonate buffer) to generate active esters, facilitating condensation with amino groups of other molecules |
| Protein Chemistry | Protein labeling, crosslinking, and polyethylene glycol (PEG) modification | Activation of carboxyl groups at the termini of proteins, peptides, or PEG chains to form NHS esters, enabling site-specific labeling or conjugation via reaction with primary amines on protein surfaces |
| Polymer Materials / Biomaterials | Surface functionalization and hydrogel fabrication | Treatment of carboxyl groups on material surfaces to generate highly reactive NHS ester surfaces, followed by immobilization of biomolecules (e.g., enzymes, peptides) or initiation of polymerization |
| In Vitro Diagnostics (IVD) | Manufacture of diagnostic reagents, including colloidal gold lateral flow assays and ELISA kits | Covalent conjugation of proteins (e.g., antigens, antibodies) or small-molecule haptens to carrier surfaces (e.g., colloidal gold, microspheres) via NHS ester–amine coupling |
Manufacturing Quality Control of BZ-OSU
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities using gradient HPLC-UV; identification based on retention time relative to reference standards. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify common solvents (e.g., acetone, DMF, ethyl acetate) against calibration curves. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine-based reagent to determine trace water content via stoichiometric reaction. |
| Acid Value | Acid-Base Titration | Titration with standardized NaOH solution using phenolphthalein indicator to quantify free carboxylic acid groups. |
| N-Hydroxysuccinimide (NHS) Content | HPLC-UV | Specific quantification of NHS by-product using isocratic HPLC-UV, calibrated with NHS reference standard. |
| Heavy Metals | ICP-OES | Multi-element analysis after microwave-assisted acid digestion; detection based on atomic emission intensities at characteristic wavelengths. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using suppressed conductivity detection with sodium carbonate/bicarbonate eluent. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, observed visually under controlled heating rate. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under controlled white light against standard reference. |
| Loss on Drying | Gravimetric Analysis | Measurement of mass loss after drying under specified temperature and vacuum conditions for fixed duration. |
| Residue on Ignition | Sulfated Ash Test | Ignition of sample in porcelain crucible followed by sulfuric acid treatment and final ash weighing to determine inorganic residue. |
Technical Specifications of BZ-OSU
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 143–147°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Conforms to reference spectrum |
| Residue on Ignition | <=0.1% |
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 BZ-OSU
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of BZ-OSU
Packaging of BZ-OSU
Industrial BZ-OSU 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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