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4-Hydroxyphenylacetic acid CAS 156-38-7 exists in white powder, it is used as Pharmaceutical Intermediates.
Specification
Specific rotation: +39.5 to +41.5°
State of solution(transmittance): Clear 98.0% min.
Chloride[cl]: 0.020% max.
Ammonium [NH4]: 0.02% max.
Sulfate[SO4]: 0.020% max
Iron[Fe]: 10ppm max.
Heavy metals [Pb]: 10ppm max
Arsenic[As2O3]: 1ppm max
Other amino acids: Chromatographically not detectable
Loss on drying: 0.20% max.
Residue on ignition[sulfated]: 0.10% max.
Assay: 99.0% min
Application
it is used as Pharmaceutical Intermediates.
Packaging
25kg/drum or as per request