| 4-EATC | 4-epianhydrotetracycline |
| 4-ETC | 4-epitetracycline hydrochloride |
| AMPD | 2-amino-2-methyl-1,3-propanediol |
| ATC | anhydrotetracycline |
| BHI | Brain Heart Infusion |
| C+ | positive control |
| HPLC | High-Performance Liquid Chromatography |
| OCT | octenidine dihydrochloride |
| RCA | Reinforced Clostridial Agar |
| rpm | Revolutions per minute |