DL-METHIONINOL Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 502-83-0 |
| Product name | DL-METHIONINOL |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeFood GradeCosmetic 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) |
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Documents We Provide for DL-METHIONINOL
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DL-METHIONINOL Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DL-METHIONINOL
| Industry | Application | Process |
|---|---|---|
| Food Industry | Nutritional fortificant | Added to food products to enhance nutritional value |
| Pharmaceutical Industry | Synthetic intermediate for drug manufacturing | Used in organic synthesis reactions to produce active pharmaceutical ingredients |
| Cosmetics Industry | Skin-care ingredient | Incorporated into formulations to deliver moisturizing and skin-repairing functions |
| Animal Feed Industry | Feed additive | Blended into animal feed to support growth and development |
Manufacturing Quality Control of DL-METHIONINOL
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (DL-Homocysteine thiolactone hydrochloride equivalent) | Acid-base titration with NaOH | Neutralization of acidic protons using standardized sodium hydroxide solution, with potentiometric or visual endpoint detection. |
| Optical Rotation | [alpha]D measurement using polarimeter | Measurement of rotation of plane-polarized light by chiral DL-homocysteine thiolactone in solution at specified concentration and wavelength. |
| Water Content | Karl Fischer titration | Quantitative reaction of water with iodine and sulfur dioxide in pyridine/methanol medium, monitored electrometrically. |
| Residue on Ignition | Gravimetric analysis after high-temperature ashing | Heating sample to 700-800 C to combust organic matter; residual inorganic ash is weighed. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Atomization of sample followed by absorption measurement at characteristic wavelength for lead. |
| Sulfate | Barium chloride turbidimetry | Precipitation of sulfate as barium sulfate; turbidity measured spectrophotometrically at 420 nm. |
| Chloride | Potentiometric titration with AgNO3 | Titration with silver nitrate using silver electrode to detect endpoint via potential change. |
| Related Substances | HPLC with UV detection | Separation on reversed-phase column; quantification based on UV absorbance at 210 nm relative to reference standards. |
| Loss on Drying | Gravimetric analysis after drying at 105 C | Weight loss measured after constant-temperature drying under controlled conditions. |
| pH of 1% aqueous solution | Potentiometric pH measurement | Determination of hydrogen ion activity using calibrated glass electrode in aqueous suspension. |
| Iron (Fe) | ICP-OES | Atomization and excitation in inductively coupled plasma; emission intensity measured at Fe-specific wavelength. |
| Microbial Limits | Membrane filtration and plate count | Filtration of sample solution followed by incubation on appropriate agar media for aerobic microbial enumeration. |
Technical Specifications of DL-METHIONINOL
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 178-182°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Optical Rotation | -1.0° to +1.0° (c=1, H2O) |
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 DL-METHIONINOL
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of DL-METHIONINOL
Industrial DL-METHIONINOL 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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