Difloxacin (INN), marketed under the trade name Dicural, is a second-generation, synthetic fluoroquinolone antibiotic used in veterinary medicine. It has broad-spectrum, concentration dependent, bactericidal activity; however, its efficacy is not as good as enrofloxacin or pradofloxacin.

CAS：91296-86-5
中文别名：双氟沙星盐酸盐;盐酸双氟沙星;二氟沙星/1-(4-氟苯基)-6-氟-4-氧代-1,4-二氢-7-(4-甲基-1-哌嗪基)-3-喹啉羧酸盐酸盐;6-氟-1-(4-氟苯基)-7-(4-甲基哌嗪-1-基)-4-氧代喹啉-3-羧酸盐酸盐;
英文别名：6-fluoro-1-(4-fluorophenyl)-7-(4-methylpiperazin-1-yl)-4-oxoquinoline-3-carboxylic acid,hydrochloride;
分子式：C21H20ClF2N3O3
分子量：435.852
精确质量：435.116
Psa：65.78
Logp：3.5238

UNII：XJ0260HJ0O

外观与性状：灰白色至淡黄色固体
密度：1.409 g/cm3
沸点：595.5ºC at 760 mmHg
熔点：>245ºC (dec.)
闪点：313.9ºC
折射率：1.629
储存条件：0-6ºC

RTECS号：VB2008975

用途
用于治疗由敏感细菌引起的消化系统、呼吸系统、泌尿系统等感染和霉形体及支原体感染。