Supports the synthesis of neurotransmitters to relieve stress.
Improves mental focus, alertness and cognitive performance.
Helps regulate mood and alleviates physical and mental fatigue.
Applications
Widely used in brain health and mood-support dietary supplements.
Added in sports nutrition formulas and compound amino acid products.
Applied in functional health foods and pharmaceutical raw materials.
Product Name:
L-Tyrosine
Specification:
USP
Batch Number:
TR2025772299599
Quantity:
10,000 KGS
Production Date:
Mar 15,2026
Expiry Date:
Mar 14,2028
Test Item
USP Specification
Test Result
Unit
Test Method
Appearance
White to off-white crystalline powder, odorless
Conforms
-
Visual Inspection
Identification (IR)
Consistent with reference standard spectrum
Conforms
-
USP <197K>
Specific Rotation
+11.3° ~ +12.1° (10% in water, 25℃)
+11.6
°
USP <781S>
Water Content
≤0.5%
0.23
%
USP <921> (Karl Fischer Method)
Residue on Ignition
≤0.1%
0.04
%
USP <281>
Heavy Metals
≤10
＜5
ppm
USP <231> Method Ⅱ
Chloride
≤0.02%
0.008
%
USP <221>
Sulfate
≤0.02%
0.006
%
USP <221>
Ammonium Salt
≤0.02%
0.005
%
Nessler's Reagent Colorimetric Method
Other Amino Acids
Individual ≤0.5%, Total ≤1.0%
Individual 0.12%, Total 0.35
%
HPLC (USP Method)
Assay (on Dry Basis)
98.5% ~ 101.5%
99.86
%
HPLC (External Standard Method)
Acidity/Alkalinity (1% in water)
5.0 ~ 6.5
5.8
pH
USP <791>
Microbial Limit
Aerobic Bacteria ≤10³CFU/g, Molds & Yeasts ≤10²CFU/g, No Pathogens Detected
Conforms
-
USP <61>/<62>
CONCLUSION: The goods conform the standard. PACKING: 25 KGS/Carton STORAGE: Store in a cool and dry place, away from light ,heat and oxygen.
Treering specializes in the production and export of L-Tyrosine. We have been engaged in the manufacturing and sales of L-Tyrosine for over 10 years. Please contact us anytime if you have any cooperation requirements.
