Product Overview

D-Aspartic Acid is an endogenous amino acid involved in amino acid related neuroendocrine regulation.

Technical Specifications

Category	Parameter	Specification
Basic Identification	Chemical Name	(R)-2-Aminobutanedioic acid
	CAS Number	1783-96-6
	Molecular Formula	C4H7NO4
	Molecular Weight	133.10 g/mol
	Appearance	White crystals or crystalline powder
Purity & Activity	Assay	≥99.0% (on dried basis)
	Specific Rotation	[α]D25 = −24.0° to −26.0°
	Enantiomeric Purity	L-Aspartic Acid ≤1.0%
Chemical Impurities	Loss on Drying	≤0.50%
	Residue on Ignition	≤0.10%
	Transmittance	≥95.0%
	Chloride (as Cl)	≤0.02%
	Sulfate (as SO4)	≤0.02%
	Ammonium (as NH4)	≤0.02%
Heavy Metals	Heavy Metals (Total)	≤10 ppm
	Lead (Pb)	≤3.0 ppm
	Arsenic (As)	≤1.0 ppm
	Mercury (Hg)	≤0.1 ppm
	Cadmium (Cd)	≤1.0 ppm
Microbiology	Total Plate Count	≤1,000 cfu/g
	Yeast & Mold	≤100 cfu/g
	E. Coli	Negative
	Salmonella	Negative
Physical Properties	Mesh Size	≥95% through 80 Mesh
	Bulk Density	0.50–0.65 g/mL
	Tapped Density	0.65–0.80 g/mL

Certification / Standard	Scope & Implementation
GMP Manufactured	Manufactured under documented GMP system with Current Good Manufacturing Practices for dietary ingredient synthesis and processing.
ISO 22000 Certified	International food safety management standard applied to full manufacturing workflow.
HACCP System	Hazard Analysis Critical Control Point protocols applied to key chemical synthesis steps.
Third-Party Lab Verified	Independent analytical testing performed per batch to verify contaminant limits and identity.

Dedicated D-Aspartic Acid Lines
Dedicated equipment reduces cross-contamination risk and supports controlled output consistency.

Enzymatic Chiral Control
Enzymatic bio-catalysis enables selective molecular conversion for D-isomer configuration.

Precursor Supply Security
Long-term contracts for specialized precursors reduce raw material dependency risk.

Isomer-Specific Storage
Dedicated climate-controlled zones reduce structural instability risk of crystalline form.

Scalable Chiral Synthesis
Flexible manufacturing allows adjustment for order volume fluctuations.

25kg Bulk Drums
D-Aspartic Acid is packed in industrial-grade fiber drums with double PE inner liners.

14-Day Lead Time
Standard ex-factory dispatch within two weeks after PO confirmation.

Moisture-Shielded Transit
Container shipments use desiccants to reduce moisture-induced agglomeration during transit.

Batch-Specific COA Provided
Each shipment includes batch COA with traceable container identification.

Validated Batch Consistency
Statistical process control evaluates crystalline homogeneity across production batches.

Q: What is the shelf life of D-Aspartic Acid under standard warehouse conditions?

A: It typically maintains its specified chemical profile for 24 months when stored in sealed, cool, and dry environments.

Q: Can D-Aspartic Acid be customized to specific mesh sizes for custom formulations?

A: Yes, milling configurations can be calibrated to deliver powder specifications ranging from 40 mesh to 100 mesh.

Q: What specific measures prevent D-Aspartic Acid from caking during high-humidity sea freight?

A: We deploy heavy-duty container desiccants and vacuum-sealed double PE inner liners inside every export fiber drum.