China Factory Direct
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| CAS number | 556-33-2 |
| Product name | Glycyl-glycyl-glycine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeCosmetic GradeFood 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Biochemical Research | Used as an enzyme substrate or inhibitor to study the activity and specificity of proteases (e.g., trypsin) | Formulated into buffered solutions for in vitro assays; incubated with enzymes prior to analysis of reaction products |
| Pharmaceutical R&D | Employed as a drug delivery vehicle or structural building block in peptide synthesis to construct more complex bioactive molecules | Incorporated into target sequences via solid-phase peptide synthesis (SPPS) or solution-phase synthesis |
| Cell Culture | Added to cell culture media to support growth or metabolic studies of specific cell types | Dissolved directly into culture media and sterilized by filtration prior to use |
| Cosmetics | Used as a humectant or skin-repairing agent to enhance product penetration and biocompatibility | Co-formulated with other active ingredients and incorporated into emulsion or serum formulations |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component by UV absorption at 200-220 nm using reversed-phase C18 column and gradient elution with aqueous/organic mobile phase. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities (e.g., dipeptides, glycine, diketopiperazine) using validated HPLC method with UV detection. |
| Water Content | Karl Fischer Titration | Measures trace water via coulometric or volumetric titration using iodine-based reagent in methanol/pyridine solvent system. |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by incinerating sample at 700-800 C and weighing residual mass after cooling. |
| Heavy Metals | ICP-OES | Quantifies Pb, Cd, Hg, As, and other regulated metals by plasma excitation and elemental emission spectroscopy. |
| Chloride Content | Potentiometric Titration | Measures chloride ions using silver nitrate titrant and silver/silver chloride indicator electrode. |
| Sulfate Content | Turbidimetric Analysis | Quantifies sulfate as barium sulfate precipitate formed in acidic medium, measured by light scattering. |
| pH (1% w/v solution) | pH Potentiometry | Determines acidity/basicity of aqueous solution using calibrated glass electrode and pH meter. |
| Specific Optical Rotation | Polarimetry | Measures chiral purity by detecting rotation of plane-polarized light in solution at specified concentration and wavelength. |
| Loss on Drying | Thermogravimetric Analysis | Determines volatile content by weight loss after drying at 105 C for 2 hours under controlled atmosphere. |
| Microbial Limits | Membrane Filtration | Quantifies aerobic mesophilic bacteria and molds/yeasts using membrane filtration followed by incubation on appropriate agar media. |
| Particle Size Distribution | Laser Diffraction | Measures particle size distribution in dry or dispersed state using Mie scattering theory and laser beam analysis. |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 219-221°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.