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1783-96-6
bosschemical
1783-96-6
Item | Limit | Result |
Appearance | White crystals or crystalline powder | White crystalline powder |
Identification | ≥95 % | Conforms |
Assay | 98.5%-101.0% | 99.7% |
pH | 2.5~3.5 | 3.02 |
State of solution | Clear and colorless | Clear and colorless |
Transmittance | ≥98.0% | 98.6% |
Specific rotation [α]ᴰ²⁰ | -24.8°~ -25.8° | -25.32° |
Loss on drying | ≤0.20% | 0.04% |
Residue on ignition | ≤0.10% | 0.05% |
Chloride | ≤0.020% | <0.020% |
Ammonium | ≤0.020% | <0.020% |
Sulfate | ≤0.020% | <0.020% |
Iron | ≤10ppm | <10ppm |
Heavy metals | ≤10ppm | <10ppm |
Arsenic | ≤1ppm | <1ppm |
Lead | ≤0.16ppm | ≤0.16ppm |
Mercury | ≤0.5 ppm | ≤0.5 ppm |
Cadmium | ≤1ppm | ≤1ppm |
Other amino acids | Not detectable | Conforms |
Total plate count | ≤1000cfu/g | < 1000cfu/g |
Mould & Yeast | ≤100cfu/g | < 100cfu/g |
Coliforms | ≤10cfu/g | < 10cfu/g |
E.coli | Absent in 10 grams | Conforms |
Salmonella | Absent in 10 grams | Conforms |
Staphylococcus aureus | Absent in 10 grams | Conforms |
Escherichia coli | Negative | Conforms |
Inspection conclusion | This product meets the requirements of AJI92 standard, so it is qualified. | |
1. For Chiral Synthesis And Asymmetric Chemistry: D-Aspartic acid (CAS 1783-96-6) is a high-purity chiral amino acid used as a building block in asymmetric synthesis and chiral resolution, supporting the production of optically active fine chemicals and specialty intermediates.
2. For Peptide Synthesis And Biochemical Research: With 99% purity, D-aspartic acid serves as a research-grade reagent for peptide synthesis and biochemical studies, providing consistent quality for laboratory and R&D applications.
3. For Dietary Supplement And Nutrition Industry: D-aspartic acid is used as an amino acid ingredient in the dietary supplement industry, available in high-purity crystalline form for formulation and manufacturing applications.
4. For Analytical Standards And Quality Control: D-aspartic acid is available as reference standard material for analytical and quality control applications in the food and chemical industries.
5. Reliable Supply For Global Industry: Supplied as high-purity (99% min) white crystalline powder with consistent quality, D-aspartic acid gives chemical, biotech and nutraceutical manufacturers a dependable chiral amino acid with stable supply, flexible packaging and professional technical support.
Ultraviolet-Vis Spectrophotometry (UV-Vis)
Infrared Spectroscopy (IR/FTIR)
Atomic Absorption Spectroscopy (AAS)
X-ray Fluorescence Spectroscopy (XRF)
Nuclear Magnetic Resonance Spectroscopy (NMR)
Gas Chromatography (GC)
High Performance Liquid Chromatography (HPLC)
Ion Chromatography (IC)
Thin Layer Chromatography (TLC)
GC-MS / LC-MS/MS: Qualitative and Quantitative Analysis
ICP-MS: Trace Metal Elements (ppb Level)
TOF-MS: Precise Molecular Weight Determination
