ChemicalBook >> CAS DataBase List >>OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID)

OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID)

CAS No.: 82419-52-1

Chemical Name:: OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID)

Synonyms: Ofloxacin-3;Desmethyl Ofloxacin;Ofloxacin EP IMpurity E;Ofloxacin impurity E CRS;Ofloxacin Impurity 5（HCl）;Ofloxacin Related CoMpound A;Ofloxacin USP Related Compound A;Desmethyl Ofloxacin Hydrochloride;Ofloxacin EP Impurity E (USP RC A);(RS)-9-Fluoro-3-methyl-7-oxo-10-(pi

CBNumber:: CB7500554

Molecular Formula:: C17H18FN3O4

Molecular Weight:: 347.34

MDL Number:: MFCD00871868

MOL File:: 82419-52-1.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-04-24 14:58:44

Product description	Number	Pack Size	Price
Ofloxacin Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material	PHR2235	50mg	$668
Ofloxacin impurity E European Pharmacopoeia (EP) Reference Standard	O0120050	20 mg	$254
Ofloxacin Related Compound A United States Pharmacopeia (USP) Reference Standard	1478119	25mg	$1390
Ofloxacin impurity E analytical standard	41244	25mg	$1260
9-Fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid 93%	AC78643	500mg	$579.48
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OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) Properties

Melting point	>2500C (dec.)
Boiling point	600.7±55.0 °C(Predicted)
Density	1.51±0.1 g/cm3(Predicted)
storage temp.	-20°C Freezer
solubility	Aqueous Base (Slightly), DMSO (Slightly, Heated, Sonicated), Methanol (Slightly)
pka	5.19±0.40(Predicted)
form	solid
color	Pale Yellow
BRN	4890029
Major Application	pharmaceutical (small molecule)
InChI	1S/C17H18FN3O4/c1-9-8-25-16-13-10(15(22)11(17(23)24)7-21(9)13)6-12(18)14(16)20-4-2-19-3-5-20/h6-7,9,19H,2-5,8H2,1H3,(H,23,24)
InChIKey	WKRSSAPQZDHYRV-UHFFFAOYSA-N
SMILES	FC1=C(N2CCNCC2)C(OCC3C)=C(N3C=C(C(O)=O)C4=O)C4=C1
FDA UNII	5S4363I4ED
UNSPSC Code	41116107
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302
Precautionary statements	P301+P312+P330
Hazard Codes	Xn
Risk Statements	22
WGK Germany	WGK 3
HS Code	2934990002
Storage Class	11 - Combustible Solids
Hazard Classifications	Acute Tox. 4 Oral

OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) price More Price(14)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	PHR2235	Ofloxacin Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material	82419-52-1	50mg	$668	2026-04-30	Buy
Sigma-Aldrich	O0120050	Ofloxacin impurity E European Pharmacopoeia (EP) Reference Standard	82419-52-1	20 mg	$254	2026-04-30	Buy
Sigma-Aldrich	1478119	Ofloxacin Related Compound A United States Pharmacopeia (USP) Reference Standard	82419-52-1	25mg	$1390	2026-04-30	Buy
Sigma-Aldrich	41244	Ofloxacin impurity E analytical standard	82419-52-1	25mg	$1260	2021-12-16	Buy
Synthonix	AC78643	9-Fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid 93%	82419-52-1	500mg	$579.48	2026-05-06	Buy

Product number	Packaging	Price	Buy
PHR2235	50mg	$668	Buy
O0120050	20 mg	$254	Buy
1478119	25mg	$1390	Buy
41244	25mg	$1260	Buy
AC78643	500mg	$579.48	Buy

OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) Chemical Properties,Uses,Production

Chemical Properties

Pale Yellow Solid

Uses

A metabolite of Ofloxacin

Uses

Desmethyl Ofloxacin (Ofloxacin EP Impurity E) is a metabolite of Ofoxacin (O245750), a fluorinated quinolone antibacterial.

OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) Preparation Products And Raw materials

Raw materials

Preparation Products

OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) Suppliers

Global( 94)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Standardpharm Co. Ltd.	86-714-3992388	overseasales1@yongstandards.com	United States	14332	58
Dideu Industries Group Limited	+86-29-89586680 +86-15129568250	1026@dideu.com	China	18895	58
CR Corporation Limited	+8613062833949	fred.wen@crcorporation.cn	China	8645	58
Hangzhou Huarong Pharm Co., Ltd.	571-86758373 +8613588754946	sales@huarongpharm.com	CHINA	3148	58
sgtlifesciences pvt ltd	+8617013299288	dj@sgtlifesciences.com	China	12373	58
HANGZHOU LEAP CHEM CO., LTD.	+86-571-87711850	market18@leapchem.com	China	24597	58
Hangzhou MolCore BioPharmatech Co.,Ltd.	+86-057181025280; +8617767106207	sales@molcore.com	China	49734	58
Moxin Chemicals	+86-17320513646 +8617320513646	anna@molcoo.com	China	10000	58
Amadis Chemical Company Limited	571-89925085	sales@amadischem.com	China	131957	58
ROSEWA HOLDING GROUP CO.,LIMITED	+86-023-62871537	sales@rosewachem.com	China	2812	58

Supplier	Advantage
Standardpharm Co. Ltd.	58
Dideu Industries Group Limited	58
CR Corporation Limited	58
Hangzhou Huarong Pharm Co., Ltd.	58
sgtlifesciences pvt ltd	58
HANGZHOU LEAP CHEM CO., LTD.	58
Hangzhou MolCore BioPharmatech Co.,Ltd.	58
Moxin Chemicals	58
Amadis Chemical Company Limited	58
ROSEWA HOLDING GROUP CO.,LIMITED	58

View Lastest Price from OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2025-11-18	OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) USP/EP/BP 82419-52-1	US $1.10 / g	1g	99.9%	100 Tons min	Dideu Industries Group Limited

OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) USP/EP/BP
82419-52-1
US $1.10 / g
99.9%
Dideu Industries Group Limited

82419-52-1(OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID))Related Search:

5-Difluoromethoxy-2-{[(3,4-dimethoxy-2-pyridinyl)methyl]thio}-1H-benzimidazole Decarboxyl Ofloxacin Ofloxacin Ethyl 9,10-difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate Desmethyl Levofloxacin

Oxygen-fluorine acid Ofloxacin EP Impurity C Ofloxacin EP Impurity B 9-Piperazino Ofloxacin Ofloxacin hydrochloride

Levofloxacin ofloxacin O-glucuronide Levofloxacin N-oxide 2-Desisopropyl-2-phenyl Repaglinide D-OFLOXACIN

N,N'-Desethylene-N,N'-diforMyl Levofloxacin Levofloxacin Related CoMpound E Levofloxacin-005-S

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Ofloxacin-3 Ofloxacin EP Impurity E (USP RC A) OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) 9-Fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)-7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid Desmethyl Ofloxacin 9-Fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid Hydrochloride Desmethyl Ofloxacin Hydrochloride (RS)-9-fluoro-2,3-dihydro-3-Methyl-7-oxo-10-(piperazin-1-yl)-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid Ofloxacin Related CoMpound A Ofloxacin Related Compound A (25 mg) ((RS)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-10-(piperazin-1-yl)-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid) Ofloxacin EP IMpurity E 9-fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid (RS)-9-Fluoro-2,3-dihydro-3-methyl-10-(1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid HCl Ofloxacin Impurity 5(Ofloxacin EP Impurity E) Ofloxacin Related Compound A (25 mg) (9-Fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid) 9-Fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid (RS)-9-Fluoro-3-methyl-7-oxo-10-(pi Ofloxacin impurity E CRS 7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 9-fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)- Ofloxacin Impurity 5（HCl） Ofloxacin Related Compound A (25 mg) OFLOXACIN RELATED COMPOUND A USP/EP/BP OFLOXACIN RELATED COMPOUND A (25 MG) ((RS)-9-FLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-10-(PIPERA-ZIN-1 -YL)-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLIC ACID) USP/EP/BP (R)-9-fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid Desmethyl Ofloxacin (Ofloxacin EP Impurity E) Ofloxacin EP Impurity E (Desmethyl Ofloxacin) Ofloxacin Related Compound A (9-Fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-2,3-dihydro-7H-pyrido[1,2 (1478119) Ofloxacin USP Related Compound A Ofloxacin EP Impurity E (Ofloxacin USP Related Compound A) (RS)-9-Fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-c 9-Fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid - [AC78643] (RS)-9-Fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid 82419-52-1 C17H19ClFN3O4 Intermediates & Fine Chemicals Various Metabolites and Impurities Metabolites & Impurities Pharmaceuticals