- 6-azauridine
- All Grade of Chunmee Tea 41022
- 2-Methyl Resorcinol
- Ampicillin Trihydrate
- Amoxicillin Trihydrate
- Aluminium Sulphate
- Anisole
- Ammonium Bifluoride
- Anhydrous Hydrofluoric Acid
- Aluminium Fluoride
- Aspartame
- Ammonium Persulfate
- Ammonium Zinc Chloride
- Amino-glycosides(Antibiotics )
- Anti drug-fast(Antibiotics )