| Chemical name | 4-Aminosalicylic Acid |
| Trade name | PAS |
| CAS No | 65-49-6 |
| EINECS No | 200-613-5 |
| Molecular formula | C7H7NO3 |
| Molecular weight | 153.14 |
| PH value | 0.5 |
| Assay | 50% |
| Appearance | colorless or light yellow liquid |
Application:
1,As brightener, leveler and leveler for alkaline zinc plating.
2, Pharmaceutical intermediates for the synthesis of anti-tuberculosis drug sodium parasalicylate.
3,It is also used to analyse acid-base fluorescent indicator of reagent.
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