N-Acetyl-DL-tryptophan Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 87-32-1 |
| Product name | N-Acetyl-DL-tryptophan |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty 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 N-Acetyl-DL-tryptophan
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk N-Acetyl-DL-tryptophan Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of N-Acetyl-DL-tryptophan
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of pharmaceutical intermediates | Used in organic synthesis reactions |
| Food | Food additives | Applied in chemical modification and blending |
| Chemicals | Analytical reagents | Employed in purification and analytical testing processes |
| Cosmetics | Skin care ingredients | Utilized in formulation development and blending |
Manufacturing Quality Control of N-Acetyl-DL-tryptophan
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color and physical state of the sample under natural light or standard illumination; it should be a white to off-white crystalline powder with no visible foreign particles. |
| Identification | Fourier Transform Infrared Spectroscopy (FT-IR) | Perform infrared scanning of the sample and reference standard under identical conditions, and compare whether characteristic absorption peaks (e.g., amide I and II bands, indole ring peaks) are consistent. |
| High-Performance Liquid Chromatography (HPLC) | Confirm consistency of the main peak by comparing retention times with a reference standard, used for indirect identification of chemical structure. | |
| Assay | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column with a UV detector (typically at ~280 nm) and quantify using a reference standard of known concentration to determine the content of N-Acetyl-DL-tryptophan in the sample. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Detect organic impurities in the active pharmaceutical ingredient (e.g., unreacted tryptophan, N-acetyl-L/D isomers, degradation products) using gradient elution to separate and calculate the percentage of each impurity peak area. |
| Specific Rotation | Polarimetry | Measure the specific rotation of a solution using a polarimeter to assess optical purity; although DL-form is a racemate with theoretical specific rotation near zero, this test can verify whether the D/L ratio is balanced. |
| Drying Loss | Thermogravimetric Analysis (TGA) or Oven Drying Method | Dry the sample to constant weight at a specified temperature (e.g., 105°C) and determine the percentage of mass loss, reflecting moisture and volatile component content. |
| Residue on Ignition (Ignition Residue) | Sulfation and Incineration Method | Determine the mass of inorganic residue remaining after high-temperature incineration of the sample; results are expressed in terms of sulfate content to control total inorganic impurities. |
| Heavy Metals | Sulfide Colorimetric Method (Chinese Pharmacopoeia Method) | Treat the sample and react with sodium sulfide to form colored metal sulfides; measure total heavy metal content (e.g., lead) by colorimetry. |
| Chlorides | Silver Nitrate Turbidimetry | Add silver nitrate to the sample solution to form silver chloride turbidity; measure chloride ion impurity content by turbidimetry. |
| Sulfates | Barium Chloride Turbidimetry | Add barium chloride in a hydrochloric acid medium to form barium sulfate precipitate; measure sulfate impurity content by turbidimetry. |
| Microbial Limits | Microbial Limit Test (Pharmacopoeial Method) | Determine total aerobic microbial count, total mold and yeast count, and specified control organisms (e.g., Escherichia coli, Salmonella spp.) to ensure compliance with standards for non-sterile active pharmaceutical ingredients. |
Technical Specifications of N-Acetyl-DL-tryptophan
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 231–235 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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 N-Acetyl-DL-tryptophan
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of N-Acetyl-DL-tryptophan
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Industrial N-Acetyl-DL-tryptophan 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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