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| Pharmaceutical Intermediate |
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Synonyms |
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p-Aminobenzoic acid |
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CAS No. |
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150-13-0 |
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Structure |
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Specification |
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Characters White or off-white crystalline powder
Identification IR should comply with the reference spectrum.
UV should comply with the reference spectrum
Melting point, ℃ 186 - 189
Volatile diazoizable substance,% 0.002 Max.
Loss on drying.% 0.2 Max.
Residue on ignition,% 0.1 Max.
Heavy metal,% 0.002 Max.
Assay,% 98.5 – 101.5
Ordinary impurities, % 1.0 Max. |
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Application |
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Applied as dyes and pharmaceutical intermediates.
Produce cyanobenzoate carboxy benzylamine. |
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Remaks |
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