L-asparagine
Description
L-Asparagine (CAS 70-47-3), commonly abbreviated as Asn, is a non-essential amino acid sourced for use across pharmaceutical, nutritional, and cosmetic manufacturing. It functions primarily as a biochemical building block in peptide synthesis.
The material also serves as a buffering and moisturizing agent in formulated products. In pharmaceutical manufacturing, Asn is used as a component in amino acid infusion solutions and as a building block in solid-phase peptide synthesis.
This amino acid is essential for active pharmaceutical ingredient production. Food and nutrition manufacturers incorporate it into amino acid blends, sports nutrition formulas, and specialized medical nutrition products targeting metabolic support.
In cosmetic formulations, it acts as a humectant and skin-conditioning agent, helping retain moisture in serums, creams, and leave-on treatments. It also serves as a pH buffer in topical and injectable formulations.
Precise pH control is critical to product stability and shelf life in these applications. L-Asparagine is available as a white crystalline powder in both monohydrate and anhydrous forms to suit various manufacturing needs.
Standard grades include USP, Ph. Eur., and food-grade (FCC), with pharmaceutical-grade material supplied under GMP conditions to meet API excipient requirements for global distribution.
Bulk quantities are typically offered in kilogram and metric ton packaging to support both development-scale and commercial production. This ensures a reliable supply chain for large-scale industrial chemical operations.
Physical Properties
| Melting Point | 234-235 °C |
| Boiling Point | 244.01°C (rough estimate) |
| Density | 1.00251 g/cm³ (Solid) @ Temp: 25 °C |
| Appearance | White crystalline powder |
| Color | White |
| Odor | sltly sweet taste |
| Form | Powder |
| Water Solubility | 20 g/L (20 ºC) |
| Refractive Index | 1.4880 (estimate) |
| pH | 5.41 |
| Log P | -3.820 |
Trade & Regulatory
| HS Code | 29241900 |
| UN Number | 2811 |
| ADR Class | 6.1 |
| Packing Group | III |
| Storage Class | 13 - Non Combustible Solids |
| WGK (Germany) | 3 |
Documentation
Other Names
α-aminosuccinamic acid|L-aspartic acid β-amide|L-aspartic acid beta-amide|L-Asparagin|L-Asn|L-2-aminosuccinamic acid|alpha-aminosuccinamic acid|2-Aminosuccinamic acid|Asn
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