L-Aspartic Acid is an amino acid that can participate in various metabolic processes and is widely used in medical, food, and scientific research fields.
Basic Information
|
Chemical formula |
C₄H₇NO₄ |
|
Molecular weight |
133.1 |
|
CAS number |
56-84-8 |
|
EINECS number |
200-291-6 |
|
Alias |
L-aspartic acid, (S)-(+)-aminosuccinic acid, L-aminosuccinic acid |
Physical Properties
|
Appearance |
White crystals or crystalline powder, slightly sour. |
|
Solubility |
Soluble in boiling water (about 0.5% solubility in water at 25°C); Easily soluble in dilute acid and sodium hydroxide solution; Insoluble in ethanol and ether. |
|
Stability |
Decomposed by heat at 270°C. |
|
Isoelectric point |
2.77 |
|
Optical rotation |
The direction of optical rotation is affected by the pH of the solvent (right-handed in acidic solution, left-handed in alkaline solution, and right-handed in aqueous solution). |
Product advantages
High Purity: Through continuous ion-exchange refining and dual crystallization, the purity can reach 99%–99.9%.
Low Moisture Content: Using low-temperature vacuum drying technology, the moisture is controlled at ≤0.3%, making it resistant to caking.
Low Heavy Metals: Strictly monitored by ICP-MS, heavy metals are controlled within ≤1 ppm.




product Application
Medical Field: Used for electrolyte supplementation, liver-support formulations, and cardiovascular medications (such as potassium magnesium aspartate).
Food Industry: Used for flavor enhancement, beverage preservation, and the production of sodium L-aspartate.
Biochemical Research: Used for reagent preparation, culture media preparation, and organic synthesis intermediates.

Precautions
Incompatibility: Avoid direct contact with strong oxidants and heavy metal salts.
Storage Conditions: Store in a cool and dry place sealed and protected from light.
Why Partner with Us
Strict Quality Control: Ensuring stable purity through HPLC/UPLC chromatographic analysis.
Experienced: Over 30 years of industry experience, an early pioneer in China's amino acid product manufacturing.
Global Market: Products exported to Europe, the Americas, Japan, South Korea, and many other countries and regions.
FAQ
Q: Do you have L-Aspartic Acid in stock?
A: We maintain a stable safety stock all year round and can arrange shipment at any time.
Q: Can I place a small-quantity order?
A: Yes, small orders start from 1 bag, suitable for testing and initial purchases.
Q: Can you provide a quotation on the same day?
A: A formal quotation, including specifications, packaging, and shipping options, can be provided within 2 hours.
Q: Do you have export certifications?
A: We have ISO quality systems, HACCP food-safety control documents, full sets of COA/MSDS/TDS technical files, and can provide third-party test reports to meet the requirements of different countries.
Q: What payment methods are available?
A: We support T/T, wire transfer, and Alibaba Trade Assurance.
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