Bemotrizinol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 187393-00-6 |
| Product name | Bemotrizinol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial 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 Bemotrizinol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Bemotrizinol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Bemotrizinol
| Industry | Application | Process |
|---|---|---|
| Personal Care | UV Filter | Used as a broad-spectrum UV absorber in sunscreens and other skincare products to provide UVA protection. |
| Textiles | UV-Protective Finishing Agent | Applied during textile finishing to impart ultraviolet resistance to fabrics. |
| Coatings | UV Stabilizer | Incorporated into coatings to enhance weatherability and color stability. |
| Plastics | Light Stabilizer | Used in plastic products to prevent degradation and discoloration caused by UV exposure. |
Manufacturing Quality Control of Bemotrizinol
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Assay | High-Performance Liquid Chromatography (HPLC) | A C18 reversed-phase column is used with methanol/water or acetonitrile/water as the mobile phase (often containing 0.1% formic acid or acetic acid to improve peak shape). Detection is performed at 288–290 nm using a UV detector. Quantification is achieved via external standard or internal standard methods. This method offers high selectivity and sensitivity, suitable for determining Tinosorb S content in cosmetics and raw materials, and complies with relevant requirements of EP, USP, and Chinese Pharmacopoeia. |
| Purity Test | HPLC-UV Impurity Profiling | Built upon the assay method, gradient elution time is extended to detect potential impurities such as starting material residues and degradation products (e.g., phenolic compounds, triazine derivatives). Total impurity levels are evaluated using area normalization or main component self-reference methods, ensuring compliance with limits specified in cosmetic safety regulations (e.g., *Cosmetic Safety Technical Specifications* 2022 Edition). |
| Melting Point | Melting Point Apparatus Method | Tinosorb S is a solid powder with a melting point range of approximately 145–150°C. Determined by capillary method or automatic melting point apparatus, this test serves as a preliminary identification tool and for batch-to-batch consistency evaluation. Abnormal melting points may indicate impurities or polymorphic changes. |
| Moisture Content | Karl Fischer Titration | Used to measure trace moisture in samples, ensuring raw materials meet drying and storage requirements (typically moisture ≤ 0.5%). Essential for moisture-sensitive sunscreen agents to prevent instability caused by water presence. |
| Particle Size Distribution | Laser Diffraction | For nano-formulated or dispersed forms of Tinosorb S, laser particle size analyzers are used to determine particle size distribution. Ensures proper dispersion and light-scattering efficiency in sunscreen formulations, meeting EU and international safety standards for particle size (e.g., ≤100 nm for nanoform registration). |
| Solubility and Stability | Solvent Dissolution Test + Accelerated Stability Testing | Samples are placed in various pH buffers (pH 3–9), ethanol, and oil phases (e.g., caprylic/capric triglyceride) to observe solubility behavior. Combined with accelerated testing at 40°C/75% RH, samples are analyzed periodically by HPLC to assess chemical stability in formulations. |
| UV Absorption Spectrum | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Scanning absorption between 280–400 nm confirms maximum absorption peaks around 310–325 nm—consistent with its function as a broad-spectrum UVA/UVB sunscreen agent. Used for preliminary qualitative identification and complementary confirmation of purity alongside HPLC. |
| Heavy Metals and Microbial Contamination | ICP-MS / Microbial Limits Testing | Testing for heavy metals such as lead, arsenic, mercury, and cadmium (limits ≤10 mg/kg), as well as microbial indicators including total aerobic microbial count, molds and yeasts, and pathogenic bacteria (e.g., *Staphylococcus aureus*, *Pseudomonas aeruginosa*) according to the *Cosmetic Safety Technical Specifications*. Ensures raw materials meet cosmetic-grade safety standards. |
Technical Specifications of Bemotrizinol
| Test Item | Specification |
|---|---|
| Appearance | Light yellow to yellow solid powder |
| Loss On Drying | ≤0.5% |
| Purity (HPLC) | >98.0% |
| Assay (HPLC) | >98.0% |
| Total impurities | ≤2.0% |
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 Bemotrizinol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Bemotrizinol
Packaging of Bemotrizinol
Industrial Bemotrizinol 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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