China Factory Direct
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| CAS number | 7235-40-7 |
| Product name | β-Carotene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeFood GradeCosmetic 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) |
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 |
|---|---|---|
| Food Additives | Nutritional fortificant and colorant (used in margarine, confectionery, baked goods, etc.) | Direct addition, emulsification mixing |
| Animal Feed | Feed additive for enhancing meat color and egg yolk pigmentation in poultry and aquaculture species | Powder blending, pelleting |
| Pharmaceuticals & Nutraceuticals | Vitamin A precursor supplement and antioxidant | Softgel encapsulation, tablet compression |
| Cosmetics | Antioxidant ingredient and UV-synergist in skincare formulations | Emulsion formulation, oil-phase mixing |
| Detection Item | Common Testing Methods | Method Overview |
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| Content Determination | High-Performance Liquid Chromatography (HPLC) | Utilizes a reversed-phase C18 column with methanol or tetrahydrofuran as the mobile phase, and UV detection at 450 nm for quantitative analysis of β-carotene content. This method offers high sensitivity and selectivity and is recommended by pharmacopoeia and national standards. |
| Purity Check | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Leverages the characteristic absorption peaks of β-carotene at approximately 450 nm, 478 nm, and 505 nm. Purity is assessed using the specific absorbance coefficient method. The procedure is simple and commonly used for preliminary quality screening. |
| Impurity Analysis | High-Performance Liquid Chromatography-Mass Spectrometry (HPLC-MS) | Combines the separation capability of HPLC with the structural identification power of mass spectrometry, enabling effective identification and quantification of degradation products or isomeric impurities in β-carotene. Suitable for high-precision quality control. |
| Isomer Detection | High-Performance Liquid Chromatography (HPLC) | Uses specialized columns (e.g., C30 column) to separate cis- and trans-isomers, allowing determination of their relative proportions. Ensures that the product primarily contains all-trans β-carotene, meeting safety and bioactivity requirements. |
| Residual Solvent Testing | Gas Chromatography (GC) | Tests for residual organic solvents (e.g., hexane, acetone) from extraction or synthesis processes. Flame ionization detector (FID) is used to ensure compliance with food safety or pharmaceutical residue limits. |
| Oxidative Degradation Products Testing | HPLC or TLC | HPLC is used to monitor oxidation-derived degradation products such as epoxides and aldehydes; thin-layer chromatography (TLC) can be employed for rapid screening but has lower sensitivity and is typically used as an auxiliary method. |
| Microbial Limits | Microbiological Culture Method | Conducted according to pharmacopoeial or food safety standards, including enumeration of aerobic bacteria, molds, yeasts, and testing for pathogenic microorganisms (e.g., E. coli, Salmonella), ensuring microbial safety of the product. |
| Heavy Metal Testing | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Determines the presence of heavy metals such as lead, arsenic, cadmium, and mercury to ensure compliance with food safety or pharmaceutical GMP requirements. |
| Test Item | Specification |
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| Appearance | Red-brown solid |
| Purity | >=98.0% (NMR) |
| Total Impurities | <=2.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 176–180 °C |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic, mild |
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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.