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Location：Home > Products > Leading Product
Products
L-Tyrosine
  Quality standard:USP, AJI
CAS No.: 60-18-4
Kosher:√
Halal:√
Class:

Chemical Name: (s)–2-Amino-3-(4-hydroxyphenyl) propionic acid
Structure Formula:

Molecular Formula: C9H11NO3
Molecular Weight: 181.19
Cas No: [60-18-4]
Characteristics: White crystals or crystalline powder; tasteless.
Quality Standards: USP, AJI.

Item Specifications
USP AJI
Appearance White crystals or crystalline powder; tasteless 
Specific optical rotation -9.8°- -11.2° -11.3°- -12.1°
State of solution (Transmittance) --- ≥ 9 5 .0 %
Chloride (as Cl) ≤ 0.04 % ≤ 0.02 %
Ammonium (as NH4) --- ≤ 0.02 %
Sulfate (as SO4) ≤ 0.04% ≤ 0.02 %
Iron ≤ 0.003% ≤ 10ppm
Heavy Metals (as Pb) ≤ 0.001 % ≤ 10ppm
Arsenic (as As) ≤ 0.0001% ≤ 1ppm
Other amino acids --- Not detected
Organic volatile impurities Meets the requirement ---
Loss on drying, % ≤ 0.3% ≤ 0.2%
Residue on ignition ≤ 0.4% ≤ 0.1%
Assay 98.5-101.5 % 99.0-100 .5 %
pH value --- 5.0-6.5
Organic volatile impurities Meets the requirement ---

 

Packaging and Storage:In 25kgs f iber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.
Recommended limit: 1 year.