Methylparaben Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 99-76-3 |
| Product name | Methylparaben |
| 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) |
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Documents We Provide for Methylparaben
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Methylparaben Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Methylparaben
| Industry | Application | Process |
|---|---|---|
| Cosmetics | Preservative | Added to personal care products such as emulsions, creams, and shampoos to inhibit microbial growth |
| Food Industry | Food Preservative | Applied in food products including soy sauce, vinegar, jams, and pastries to prevent mold and yeast proliferation |
| Pharmaceuticals | Pharmaceutical Preservative | Added to topical formulations, ophthalmic solutions, and syrups to extend shelf life |
| Household Products | Preservative | Used in household products such as toothpaste, mouthwash, and wet wipes to maintain product stability |
Manufacturing Quality Control of Methylparaben
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Identification | Infrared Spectroscopy (IR) | Determine the infrared absorption spectrum of the sample and compare it with standard spectra to confirm characteristic functional groups of methyl paraben (e.g., ester group, benzene ring). |
| Thin Layer Chromatography (TLC) | Compare the spot positions (Rf values) and color of the sample with reference standards under identical conditions for preliminary identification. | |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column with methanol-water or acetonitrile-water as the mobile phase, and UV detection (usually at 254 nm). The content is calculated using the external standard method. |
| Gas Chromatography (GC) | Suitable for volatile samples. Use capillary columns for separation and FID detector for quantification. Note derivatization or high-temperature stability issues. | |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Use gradient or isocratic elution procedures to separate the main component from potential impurities (e.g., unreacted raw materials, degradation products). Calculate impurity content using area normalization or correction factor methods. |
| Loss on Drying | Drying Loss Method | Dry the sample at a specified temperature (e.g., 105°C) until constant weight, and calculate the percentage mass loss to assess moisture and volatile substances. |
| Residue on Ignition | Residue on Ignition Test | Heat the sample to a high temperature (about 700–800°C), weigh the residual inorganic material, and control the limit of inorganic impurities. |
| pH Value | pH Meter Measurement | Prepare a certain concentration aqueous solution (e.g., 1%) and measure its acidity or alkalinity using a calibrated pH meter, which reflects the presence of free acids or basic impurities. |
| Melting Point | Melting Point Determination | Determine the melting range using the capillary or digital melting point method. Purer substances have narrower melting ranges (methyl paraben melting point is approximately 125–128°C). |
| Heavy Metals | Thioacetamide Method (Colorimetric Method) | Under weakly acidic conditions, heavy metals react with thioacetamide to form colored sulfide precipitates. Compare with a lead standard solution to control total heavy metal content. |
Technical Specifications of Methylparaben
| Test Item | Specification |
|---|---|
| Appearance | White to almost white crystalline powder |
| Purity | >=98.5% (GC-MS) |
| Melting Point | 125–128°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic mild odor |
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 Methylparaben
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Methylparaben
Packaging of Methylparaben
Industrial Methylparaben 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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