Product Name: Ac-Tyr-OH CAS # : 537-55-3 Synonyms: N-Acetyl-L-Tyrosine Molecular Formula: C11H13NO4 Molecular Weight: 223.23 Specifications: ( Reference Standard : AJI92) Items Standard Analysis data Appearance White crystal or white crystalline powder Conforms Specific Rotation [ 20/ D] ( C= 2 in H2O) + 45 to + 49 Degree Transmittance Not less than 95.0% eavy Metals ( Pb) Not more than 10 PPM Arsenic ( As2O3) Not more than 2 PPM Loss on Drying Not more than 0.50% Residue on Ignition Not more than 0.30%