STREPTAVIDIN Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 9013-20-1 |
| Product name | STREPTAVIDIN |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent 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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for STREPTAVIDIN
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk STREPTAVIDIN Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of STREPTAVIDIN
| Industry | Application | Process |
|---|---|---|
| Biotechnology | Separation and purification of biomolecules | Chromatographic separation leveraging the high-affinity interaction between streptavidin and biotin |
| Diagnostics | Label in immunoassays | Detection of target antigens in ELISA or immunoblotting via binding to biotinylated antibodies |
| Pharmaceutical R&D | Drug target screening and validation | Analysis of protein–ligand interactions using biotinylated ligands |
| Molecular Biology | Biosensor construction | Immobilization of biotinylated nucleic acids or proteins onto sensor surfaces using streptavidin |
| Research Reagents | Cell sorting and labeling | Selective identification and isolation of specific cell populations through binding to biotinylated probes |
Manufacturing Quality Control of STREPTAVIDIN
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Protein Concentration | UV-Vis Spectrophotometry | Measures absorbance at 280 nm using the extinction coefficient to quantify protein concentration based on aromatic amino acid content. |
| Purity (Aggregate Content) | Size Exclusion Chromatography (SEC-HPLC) | Separates monomeric streptavidin from aggregates and fragments based on hydrodynamic volume in an aqueous mobile phase. |
| Biological Activity (Biotin Binding Capacity) | Enzyme-Linked Immunosorbent Assay (ELISA) or Biotin-4-HRP Binding Assay | Quantifies functional binding sites by measuring signal intensity from enzyme-conjugated biotin bound to immobilized streptavidin. |
| Residual Host Cell Proteins (HCP) | ELISA (HCP-specific) | Detects trace host cell proteins using polyclonal antibodies raised against E. coli lysate, with colorimetric quantification. |
| Endotoxin Level | Limulus Amebocyte Lysate (LAL) Assay | Measures endotoxin via enzymatic cascade triggered by lipopolysaccharide, resulting in gel formation or chromogenic/fluorogenic signal. |
| Residual DNA | Fluorometric DNA Quantitation (e.g., PicoGreen) | Binds double-stranded DNA with fluorescent dye; fluorescence intensity correlates with DNA concentration. |
| pH | Potentiometric pH Measurement | Determines hydrogen ion activity using calibrated glass electrode and reference electrode in aqueous solution. |
| Osmolality | Freezing Point Depression Osmometry | Measures solute concentration by detecting depression of freezing point relative to pure water. |
| Sterility | Membrane Filtration Followed by Incubation | Filters sample through sterile membrane, places membrane on growth media, and incubates to detect microbial growth. |
| Visible Particulates | Light Obscuration or Microscopic Particle Count | Counts and sizes particles in solution by detecting light blockage or direct microscopic visualization per USP <788>. |
| Residual Solvents (e.g., Acetonitrile, Ethanol) | Gas Chromatography (GC-FID) | Separates volatile solvents by partitioning in capillary column and detects via flame ionization. |
| Heavy Metals (e.g., Pb, Cd, Ni) | Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Atomizes and ionizes sample in plasma, then quantifies metal isotopes by mass-to-charge ratio detection. |
Technical Specifications of STREPTAVIDIN
| Test Item | Specification |
|---|---|
| Appearance | White to off-white lyophilized powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.5% |
| Solubility | Freely soluble in phosphate buffered saline (PBS), pH 7.4 |
| Optical Rotation | -50° to -70° (c=1, H2O) |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
|
|
Download COA of STREPTAVIDIN
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of STREPTAVIDIN
Industrial STREPTAVIDIN 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply