Q1: What is the basic information?
A1:
CAS No. 79-57-2,
Molecular Formula: C₂₂H₂₄N₂O₉.
Appearance: Pale yellow to beige crystalline powder, odorless or slightly odorous. Slightly soluble in ethanol, very slightly soluble in water, soluble in dilute acids/bases. Stable in air but gradually darkens upon light exposure; easily inactivated in alkaline solutions.
Q2: What is its pharmacological action?
A2: Tetracycline-class broad-spectrum antibiotic. Binds to the 30S ribosomal subunit, inhibits protein synthesis. Effective against G⁺/G⁻ bacteria, mycoplasma, rickettsia, chlamydia, spirochetes, and some protozoa. Bactericidal at high concentrations.
Q3: What are its applications?
A3: Veterinary raw material for treating swine enzootic pneumonia, E. coli/Salmonella infections, avian CRD, bovine pasteurellosis, aquatic bacterial diseases, etc. Also used as feed additive at subtherapeutic doses for growth promotion (comply with local regulations).
Q4: What are the storage requirements?
A4: Store in cool, ventilated warehouse away from fire and heat. Keep container sealed. Separate from oxidizers, acids, and alkalis. Use explosion-proof equipment. Area must have spill response supplies.
