Propylparaben Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 94-13-3 |
| Product name | Propylparaben |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeCosmetic GradeFood 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 Propylparaben
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Propylparaben Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Propylparaben
| Industry | Application | Process |
|---|---|---|
| Food Industry | Preservative to inhibit molds and yeasts | Added to food products such as soy sauce, vinegar, fruit juices, and jams, at levels compliant with food safety regulations |
| Cosmetics Industry | Preservative to extend product shelf life | Added to personal care products such as lotions, creams, and shampoos to prevent microbial contamination |
| Pharmaceutical Industry | Preservative for pharmaceuticals to ensure product stability | Used in liquid formulations and ointments to suppress bacterial and fungal growth |
| Industrial Products | Preservative for adhesives, coatings, and similar materials | Added to water-based products to prevent microbial degradation |
Manufacturing Quality Control of Propylparaben
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Identification | Infrared Spectroscopy (IR) | Compare the sample spectrum with a standard reference spectrum; confirm structural consistency based on characteristic absorption peaks (e.g., C=O, aromatic ring, C-O). |
| Ultraviolet-Visible Spectrophotometry (UV-Vis) | Exhibits a maximum absorption peak around 258 nm; used for auxiliary identification and quantitative analysis. | |
| Assay | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column with methanol-water or acetonitrile-water as the mobile phase; detection by UV detector (around 254 nm); quantification via external or internal standard method. |
| Gas Chromatography (GC) | Suitable for volatile samples; commonly coupled with an FID detector; sample derivatization (e.g., silylation) may be required. | |
| Impurity Testing | HPLC Method | Impurities (e.g., p-hydroxybenzoic acid, other parabens) are separated and detected using gradient elution; impurity levels are calculated based on peak area percentages. |
| Loss on Drying | Thermogravimetric Analysis (TGA) or Oven Drying Method | Dry the sample at 105°C to constant weight and measure the weight loss to determine moisture and volatile impurity content. |
| Sulfated Ash | Sulfate Ash Method | The sample is charred, treated with sulfuric acid, then ignited at high temperature (about 600–800°C); the residue is weighed to assess inorganic impurity content. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After sample digestion, determine the levels of heavy metal elements such as lead, arsenic, cadmium, and mercury to ensure compliance with pharmacopoeial limits. |
| Microbial Limits | Microbial Limits Test | Perform total aerobic microbial count, mold and yeast count, and test for specified microorganisms (e.g., Escherichia coli) according to the Chinese Pharmacopoeia or relevant standards. |
Technical Specifications of Propylparaben
| Test Item | Specification |
|---|---|
| Appearance | White to off white solid |
| Assay | 98.0%~102.0% |
| Ignition residue | ≤0.1% |
| Single impurity | ≤0.5% |
| Melting point | 96~99°C |
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 Propylparaben
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Propylparaben
Packaging of Propylparaben
Industrial Propylparaben 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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