Description
N-Acetyl L-Tyrosine (Ac-Tyr-OH) is the tyrosine bonded to an acetyl group, and tyrosine is an essential amino acid. It can be said for N-Acetyl L-Tyrosine and L-Tyrosine, they are both different forms of the same compound.
CAS Number: 537-55-3
EC Number: 208-671-3
Chemical Formula: C11H13NO4
Molecular Weight: 223.23
Standard: AJI92
Melting point: 150-151°C
Solubility: Soluble in water and ethanol.
Synonyms: Ac-Tyr-OH
Specification:
|
Appearance: |
White crystals or crystalline powder |
|
Melting point: |
150.0 ~ 151.0 °C |
|
Specific rotation [a]D20° |
+46.5o ~ +49.0o |
|
Assay: |
97.5% to 102.5% |
|
State of solution: |
Clear and colorless |
|
[transmittance]: |
96.0% min. |
|
pH: |
2.0 ~ 3.0 |
|
Sulfate (SO4): |
0.02% max. |
|
Ammonium (NH4): |
0.02% max. |
|
Chloride (Cl): |
0.02% max. |
|
Loss on drying: |
0.5% max. |
|
Residue on ignition [sulfated]: |
0.1% max |
|
Iron (Fe): |
30ppm max. |
|
Heavy metals [Pb]: |
10ppm max. |
|
Arsenic [As2O3]: |
2ppm max. |