3-(4-Hydroxyphenyl)-DL-Alanine 556-03-6 DL-Tyr-OH
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Product Name: DL-Tyrosine
CAS#: 556-03-6
Synonyms: DL-Tyr
Molecular Formula: C9H11NO3
Molecular Weight: 181.19
Specifications: (Reference Standard AJI92)
Item |
Standard |
Analysis data |
Appearance |
White crystalline powder |
Conforms |
State of solution (Transmittance) |
Not less than 95.0% |
96.1% |
Chloride (Cl) |
Not more than0.10% |
<0.1% |
Heavy metal(Pb) |
Not more than 10ppm |
<10ppm |
Arsenic(As2O3) |
Not more than 2ppm |
<2ppm |
Other amino acids |
Chromatographically not detectable |
Conforms |
Loss on drying |
Not more than 0.20% |
0.12% |
Residue on ignition(sulfated) |
Not more than 0.20% |
0.1% |
Assay |
98.0 to101.0% |
99.4% |
Laboratory Picture:
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