L-Tyrosine H-Tyr-OH CAS:60-18-4
Product Name: H-Tyr-OH
CAS#: 60-18-4
Synonyms: L-Tyrosine
Molecular Formula: C9H11NO3
Molecular Weight: 181.19
Item |
Standard |
Appearance |
White crystals or crystalline powder |
Specific rotation[α]20/D (C=5,1mol/L HCL) |
-11.3 to -12.1° |
State of solution (Transmittance) |
Clear and colorless Not less than 95.0% |
Chloride (Cl) |
Not more than 0.020% |
Ammonium (NH4) |
Not more than 0.02% |
Sulfate (SO4) |
Not more than 0.020% |
Iron (Fe) |
Not more than 20ppm |
Heavy metal(Pb) |
Not more than 10ppm |
Arsenic(As2O3) |
Not more than 1ppm |
Other amino acids |
Chromatographically Not detectable |
Loss on drying |
Not more than 0.20% |
Residue on ignition(sulfated) |
Not more than 0.10% |
Assay |
98.5 to100.5% |
pH |
5.0 to 6.5 |
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