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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 12733888Generated: October 23, 2026

Norfloxacin hydrochloride

NorfloxacineHCl · Norfloxacinehydrochloride · Hydrochloric acid and norfloxacin · Norfloxacin hydrochloride (MK-0366) · Norfloxacinehydrochloride USP/EP/BP · 1-Ethyl-6-fluoro-1,4-dihydro-4-oxo-7-piperazin-1-yl-quinolin-3-carboxylic acid HCl · 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-Quinolinecarboxylic acid hydrochloride (1:1) · 3-Quinolinecarboxylic acid, 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-, hydrochloride (1:1)

https://huagongshe.com/en/chemical/12733888

Norfloxacin hydrochloride molecular structure

Identifiers & Physical Properties

CAS No.104142-93-0
Molecular formulaC16H19ClFN3O3
Average molar mass355.79 g/mol
SMILESCCn1cc(C(=O)O)c(=O)c2cc(F)c(N3CCNCC3)cc21.Cl
InChIKeyJJWDELPVPRCLQN-UHFFFAOYSA-N
PubChem CID12733888
ChEMBLCHEMBL4635810

Chemical & Physical Properties

Topological polar surface area72.9
Hydrogen bond donors3
Hydrogen bond acceptors7
Rotatable bonds3
Heavy atoms24
Formal charge0
Complexity519
Melting point>300 °C
Storage conditionsStore at -20°C
SolubilitySoluble in DMSO
Physical statePowder
FDA UNII7O3ULA741Z
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH302-H315-H319-H335
GHS precautionary statementsP280-P305+P351+P338
Hazard symbolsF,C
Risk statements (R)11-34
Safety statements (S)16-26-36/37/39-45

Safety & Regulations

Risk statements (R)11-34
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsF,C
Safety statements (S)16-26-36/37/39-45
GHS hazard statementsH302-H315-H319-H335
GHS precautionary statementsP280-P305+P351+P338

Applications & Uses

Uses

Norfloxacin hydrochloride (MK-0366 hydrochloride) is a broad-spectrum antibiotic that is active against both Gram-positive and Gram-negative bacteria, which functions by inhibiting DNA gyrase.