2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-hydroxy-butanoic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 73731-37-0 |
| Product name | 2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-hydroxy-butanoic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeReagent 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 73731-37-0
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 73731-37-0 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 73731-37-0
| Industry | Application | Process |
|---|---|---|
| Biopharmaceuticals | Amino acid building blocks for peptide synthesis | Applied in solid-phase peptide synthesis (SPPS) |
| Pharmaceutical R&D | Research of novel drug molecules | Applied in chemical conjugation, cyclization reactions, etc. |
| Healthcare | Preparation of biologically active substances with specific functions | Applied in site-specific modification and bioconjugation techniques |
| Scientific Research | Investigation of protein structure and function | Applied in amino acid labeling and site-directed mutagenesis experiments |
| Cosmetics | Development of functional skincare ingredients | Applied in enzyme-catalyzed transformation and surface modification |
Manufacturing Quality Control of 73731-37-0
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by reverse-phase HPLC with UV detection at 268 nm using external standard calibration. |
| Chiral Purity | Chiral HPLC | Separation of L- and D-enantiomers on a chiral stationary phase with UV detection; enantiomeric excess calculated from peak areas. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration with iodine-based reagent to determine water content via stoichiometric reaction. |
| Residual Solvents | GC-FID | Gas chromatographic separation followed by flame ionization detection, quantified against certified solvent standards. |
| Heavy Metals | ICP-OES | Multi-element detection after acid digestion; total heavy metals expressed as Pb equivalent based on emission intensity. |
| Loss on Drying | Gravimetric Analysis | Mass loss measured after drying under controlled temperature and vacuum; reflects volatile impurities and residual moisture. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light at 589 nm; confirms stereochemical integrity and concentration. |
| pH of Solution | Potentiometric Titration | pH measurement of 1% aqueous solution using calibrated glass electrode and reference electrode. |
| Related Substances | HPLC-UV | Detection and quantification of structurally related impurities (e.g., Fmoc-Thr-OH degradants) using gradient HPLC with UV detection. |
| Residual Chloride | Ion Chromatography | Separation and quantification of chloride ions using suppressed conductivity detection after aqueous extraction. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder dispersion via light scattering to determine D10, D50, D90 values. |
| Microbial Contamination | Membrane Filtration | Enumeration of aerobic mesophilic microorganisms following filtration, membrane transfer, and incubation on soybean-casein digest agar. |
Technical Specifications of 73731-37-0
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (LC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Optical Rotation | -17.0 to -14.0 deg (c=1, in DMF) |
| Melting Point | 138 to 142 °C |
| Heavy Metals | <=10 ppm |
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 73731-37-0
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 73731-37-0
Packaging of 73731-37-0
Industrial 73731-37-0 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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