ChemicalBook > CAS DataBase List > Oxygen-fluorine acid

Oxygen-fluorine acid

Product Name
Oxygen-fluorine acid
CAS No.
82419-35-0
Chemical Name
Oxygen-fluorine acid
Synonyms
OFLOXACIN Q ACID;Ofloxacin Carboxylic Acid;Ofloxacin-1;AURORA 21894;Olfoxacin Acid;Oxygen-fluorine;AKOS BBS-00001807;OXYGEN-FLUORINE ACID;OTAVA-BB BB0111050010;DIFLUOROCARBOYLIC ACID
CBNumber
CB9427004
Molecular Formula
C13H9F2NO4
Formula Weight
281.21
MOL File
82419-35-0.mol
More
Less

Oxygen-fluorine acid Property

Melting point:
320-322 °C (lit.)
Boiling point:
459.2±45.0 °C(Predicted)
Density 
1.61±0.1 g/cm3(Predicted)
storage temp. 
2-8°C
solubility 
DMSO (Slightly, Heated)
pka
4.87±0.40(Predicted)
color 
Off-White
BRN 
4202751
CAS DataBase Reference
82419-35-0(CAS DataBase Reference)
More
Less

Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
HS Code 
29349990
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
472670
Product name
9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid
Purity
97%
Packaging
5g
Price
$39.36
Updated
2024/03/01
TCI Chemical
Product number
O0404
Product name
9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid
Purity
>98.0%(HPLC)
Packaging
5g
Price
$83
Updated
2024/03/01
TCI Chemical
Product number
O0404
Product name
9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid
Purity
>98.0%(HPLC)
Packaging
25g
Price
$290
Updated
2024/03/01
Usbiological
Product number
009538
Product name
9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid|
Packaging
1g
Price
$425
Updated
2021/12/16
TRC
Product number
D445745
Product name
9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylicAcid(RS-OfloxacinCarboxylicAcid)
Packaging
10g
Price
$255
Updated
2021/12/16
More
Less

Oxygen-fluorine acid Chemical Properties,Usage,Production

Chemical Properties

Grey-Yellow Powder

Uses

9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid (Ofloxacin EP Impurity A) is an Ofloxacin intermediate.

General Description

(S)-(-)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid may be used in the preparation of the following:

  • kynurenine aminotransferase II (KAT II) inhibitor, [(S)-(-)-9-(4-aminopiperazine-1-yl)-8-fluoro-3-methyl-6-oxo-2,3,5,6-tetrahydro-4H-1-oxa-3a-aza-phenalene-5-carboxylic acid]
  • fused-ring derivatives
  • N-desmethyllevofloxacin

Oxygen-fluorine acid Preparation Products And Raw materials

Raw materials

Sodium hydride Ethyl 2,3,4,5-tetrafluorobenzoyl acetate Acetic anhydride Potassium hydroxide Triethyl orthoformate DL-Alaninol Tetrahydrofuran Hydrochloric acid Dimethyl sulfoxide

Preparation Products

More
Less

Oxygen-fluorine acid Suppliers

Americas 1 Austria 1 Belgium 2 Canada 2 China 191 Europe 1 Germany 1 India 24 Japan 2 Switzerland 1 Ukraine 1 United Kingdom 6 United States 32 Global 265
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40240
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15848
Advantage
69
Beijing dtftchem Technology Co., Ltd.
Tel
010-60275820 13031183356
Fax
010-60270825
Email
elainezt@sina.com
Country
China
ProdList
1392
Advantage
62
Adamas Reagent, Ltd.
Tel
400-6009262 16621234537
Fax
021-64823266
Email
zhangsn@titansci.com
Country
China
ProdList
14113
Advantage
59
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696
Email
info@hanhongsci.com
Country
China
ProdList
42982
Advantage
64
Chemsky（shanghai）International Co.,Ltd.
Tel
021-50135380
Email
shchemsky@sina.com
Country
China
ProdList
32344
Advantage
50
ShangHai YuanYe Biotechnology Co., Ltd.
Tel
021-61312847 13636370518
Fax
021-55068248
Email
shyysw007@163.com
Country
China
ProdList
4941
Advantage
60
S.Z. PhyStandard Bio-Tech. Co., Ltd.
Tel
0755-4000505016 13380397412
Fax
0755 28094224
Email
3001272453@qq.com
Country
China
ProdList
4979
Advantage
50
Thermo Fisher Scientific
Tel
800-810-5118
Fax
+86-10-84193589
Email
cnchemical@thermofisher.com
Country
China
ProdList
17779
Advantage
75
Beijing Comparison Pharmaceutical Technology Co., Ltd
Tel
010-52878169 15701683040
Email
sales@bjcomparison.com
Country
China
ProdList
4738
Advantage
58
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-400-6206333 18521732826
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25014
Advantage
65
Nanjing Sunlida Biological Technology Co., Ltd.
Tel
025-57798810
Fax
025-57019371
Email
sales@sunlidabio.com
Country
China
ProdList
3750
Advantage
55
Beijing Universal Century Technology Co., Ltd.
Tel
400-8706899
Fax
400-8706899
Email
hysj_bj.com
Country
China
ProdList
3585
Advantage
55
Hubei XinyuanShun Chemical Co., Ltd.
Tel
13971561712, 13995564702, 027-50664929
Fax
027-50664927
Email
hbeixys2001@163.com
Country
China
ProdList
3123
Advantage
55
Bide Pharmatech Ltd.
Tel
400-1647117 15221909166
Fax
+86-21-61629029
Email
product02@bidepharm.com
Country
China
ProdList
41438
Advantage
60
Shanghai Worldyang Chemical Co.,Ltd.
Tel
021-021-56795766
Fax
+86-21-56795266
Email
sales@worldyachem.com
Country
China
ProdList
9352
Advantage
58
ChemStrong Scientific Co.,Ltd
Tel
0755-0755-66853366 13670046396
Fax
0755-28363542
Email
sales@chem-strong.com
Country
China
ProdList
17993
Advantage
56
Wuxi Zhongkun Biochemical Technology Co., Ltd.
Tel
0510-85629785 18013409632
Fax
051085625359
Email
sales@reading-chemicals.com
Country
China
ProdList
15185
Advantage
58
Wuhan Dahua Pharmaceutical Co., Ltd.
Tel
027-59262863 13277907145 3091977954
Fax
027-59420980
Country
China
ProdList
4951
Advantage
58
Shanghai Xingui Biotechnology Co., Ltd.
Tel
17501653715
Email
xingui2022@126.com
Country
China
ProdList
10033
Advantage
58
Shanghai Kewel Chemical Co., Ltd.
Tel
021-64609169 18901607656
Fax
021-64609160
Email
greensnown@163.com
Country
China
ProdList
9911
Advantage
50
Credit Asia Chemical Co., Ltd.
Tel
+86 (21) 61124340
Fax
+86 (21) 6129-4103
Country
China
ProdList
9767
Advantage
58
Hubei Jusheng Technology Co.,Ltd
Tel
027-59599241 18871490274
Fax
027-59599241
Email
1400878000@qq.com
Country
China
ProdList
9955
Advantage
58
Chizhou Kailong Import and Export Trade Co., Ltd.
Tel
Fax
-
Email
xg01_gj@163.com
Country
China
ProdList
9503
Advantage
50
Sigma-Aldrich
Tel
021-61415566 800-8193336
Email
orderCN@merckgroup.com
Country
China
ProdList
51471
Advantage
80
Watson Biotechnology Co.,Ltd
Tel
027-027-59207879 18140587686
Fax
QQ：1972026995
Email
kf@3600chem.com
Country
China
ProdList
4697
Advantage
55
Nanjing XiZe Biotechnology CO., Ltd.
Tel
025-58362220 15250997978
Fax
025-58362220
Email
1511893459@qq.com
Country
China
ProdList
7772
Advantage
55
Nanjing Chempioneer Pharmaceutical Co., Ltd.
Tel
18068075658
Fax
-
Email
sales@chempioneer.com
Country
China
ProdList
1811
Advantage
58
Boen pharm
Tel
86 512-62572107 62962707
Fax
86 512-62922078
Country
China
ProdList
800
Advantage
58
Shandong Xiya Chemical Co., Ltd.
Tel
4009903999 13395398332
Fax
0539-6365991
Email
sales@xiyashiji.com
Country
China
ProdList
20810
Advantage
60
Raw material medicin reagent co.,Ltd
Tel
Email
sales@njromanme.com
Country
China
ProdList
4534
Advantage
58
Chengdu Dianchun Technology Co., Ltd
Tel
400-1166-196 18502815961
Fax
QQ：800101999
Email
cdhxsj@163.com
Country
China
ProdList
14623
Advantage
60
Tonichem Pharmaceutical Technology Co., Ltd.
Tel
+86 (0752) 222-7171, +86 15815821171
Fax
+86 (0752) 222-6171
Country
China
ProdList
1120
Advantage
58
Shenzhen Simeiquan Biotechnology Co. Ltd
Tel
18126413629 0755-23311925 2355327053
Fax
0755-23311925
Email
abel@ycgmp.com
Country
China
ProdList
5115
Advantage
58
Amadis Chemical Company Limited
Tel
571-89925085
Fax
0086-571-89925065
Email
sales@amadischem.com
Country
China
ProdList
131980
Advantage
58
Guangdong wengjiang Chemical Reagent Co., Ltd.
Tel
0751-2886750 13927877953
Fax
0751-2886750
Email
3005811397@qq.com
Country
China
ProdList
13336
Advantage
58
Shenzhen Sendi Biological Technology Co., Ltd.
Tel
18124570582 TEL：0755-23574479 2355327139
Fax
0755-23229476 QQ: 2355327139
Email
siliao02@yccreate.com
Country
China
ProdList
6120
Advantage
58
Guangzhou Kafen Biotech Co.,Ltd
Tel
18029243487 2355327168
Fax
020-31121510
Email
gy@yccreate.com
Country
China
ProdList
4753
Advantage
55
Wuhan Runzeweiye Technology Co., Ltd.
Tel
027-50779735 15172337137
Fax
027-50779735
Email
runzeweiye999@163.com
Country
China
ProdList
735
Advantage
55
Taian Jiaye Biotechnology Co.Ltd
Tel
13127280945
Email
285424065@qq.com
Country
China
ProdList
9980
Advantage
55
Shenzhen SUNGENING Bio-Medical Co., Ltd.
Tel
0755-28967200 13631290199
Fax
0755-28967200
Email
wxf@sungening.com
Country
China
ProdList
9507
Advantage
60
Shanghai Orgchem Co.,Ltd.
Tel
+86-21-5877 1921
Fax
+86-21-5877 1925
Email
info@chemofchina.com
Country
China
ProdList
9661
Advantage
55
Wuhan HongxinKang Fine Chemical Co., Ltd.
Tel
027-59362599 18674037007
Fax
027-84802889
Email
zhuoxingwc@163.com
Country
China
ProdList
950
Advantage
58
Wuhan Netcom Electronic Commerce Limited
Tel
18064670521
Fax
0757-88210752
Email
2355935187@ycphar.com
Country
China
ProdList
4887
Advantage
58
Zhuhai JiaYi Biological Technology Co., Ltd.
Tel
18578209868 2355327026
Fax
18578209868 QQ：2355327026
Email
steroidbest@hotmail.com
Country
China
ProdList
6504
Advantage
58
XinYao(Shenzhen) Biological Technology Co., Ltd.
Tel
0755-89880280
Fax
0755-89880280
Email
3004662104@qq.com
Country
China
ProdList
1830
Advantage
58
Aikon International Limited
Tel
025-66113011 18112977050
Fax
(5)02557626880
Email
cb6@aikonchem.com
Country
China
ProdList
15495
Advantage
58
Conier Chem & Pharma Limited
Tel
13368167990
Email
sales@conier.com
Country
China
ProdList
2809
Advantage
58
Wuhan FengyaoTonghui Chemical Products Co., Ltd.
Tel
027-87466105 15377573527
Email
2678564200@qq.com
Country
China
ProdList
17997
Advantage
58
More
Less

View Lastest Price from Oxygen-fluorine acid manufacturers

Henan Fengda Chemical Co., Ltd
Product
Oxygen-fluorine acid 82419-35-0
Price
US $36.00-1.20/kg
Min. Order
1kg
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2024-04-16
Hebei Yanxi Chemical Co., Ltd.
Product
Oxygen-fluorine acid 82419-35-0
Price
US $0.00/kg
Min. Order
1kg
Purity
98.50%
Supply Ability
20tons
Release date
2023-09-14
WUHAN FORTUNA CHEMICAL CO., LTD
Product
Oxygen-fluorine acid 82419-35-0
Price
US $0.00/Kg/Drum
Min. Order
1KG
Purity
98%min
Supply Ability
1000kg
Release date
2021-11-03

82419-35-0, Oxygen-fluorine acidRelated Search:

Methyl salicylate Dihydromyrcenol 1-AdaMantanethylaMine Oxygen Ofloxacin Levofloxacin Tribenuron methyl Basic Violet 1 Methylparaben Methyl acrylate Kresoxim-methyl Methanol Levofloxacin carboxylic acid Piperazine 1-Piperazinecarbaldehyde 2,3,4,5-Tetrafluorobenzoyl chloride 7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 10-amino-9-fluoro-2,3-dihydro-3-methyl-7-oxo-, (S)- (9CI) Methyl

  • 9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-7H-PYRIDO[1,2,3-DE]-1,4-BENZ-OXAZINE-6-CARBOXYLIC ACID
  • 9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7h-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxyllic acid
  • 9,10-DIFLUORO-3-METHYL-7-OXO-2,3-DIHYDRO-7H-[1,4]OXAZINO[2,3,4-IJ]QUINOLINE-6-CARBOXYLIC ACID
  • AURORA 21894
  • AKOS BBS-00001807
  • OXYGEN-FLUORINE ACID
  • OTAVA-BB BB0111050010
  • 9,10-Difluoro-2,3-Dihydro-3-Methyl-7-Oxo-7h-Pyroido(1,2,3-De)(1,4)Benzoxazine-6-Carboxylic Acid
  • Oxygen fluorine acid(FPA)
  • DIFLUOROCARBOYLIC ACID
  • 9,10-DIFLUORO-2,3-DIHYDRO-3-ME-7-OXO-7H- PYRIDO(1,2,3-DE)1,4-BENZOXAZINE-6-COOH
  • OFLOXACIN Q ACID
  • 9,10-Difluoro-3-Methyl-7-Oxo-2,3-Dihydro 7-H-Pyrido-1,2,3-DE]-1,4-Benzoxyazine-6-Carboxylic Acid
  • Oxygen-fluorine
  • 9,10-Difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylicacid
  • 9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3de]-1,4-benzoxazine
  • 9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic
  • (RS)-9,10-Difluro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid (FPA)
  • 9,10-difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid
  • Ofloxacin Impurity 4(Ofloxacin EP Impurity A)
  • 9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid (RS-Ofloxacin Carboxylic Acid)
  • Ofloxacin EP IMpurity A
  • (RS)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid
  • 9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-DE]-1,4-benz-oxazine-6-carboxylic acid ,97%
  • 9,10-difluoro-2,3-dihydro-3-me-7-oxo-7h-pyrido-1,
  • Oxygen-fluorine acid ,98%
  • 9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBO
  • 7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CARBOXYLICACID,9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO
  • Olfoxacin Acid
  • Ofloxacin Impurity A(EP)
  • Ofloxacin-1
  • Levofloxacin Hydrochloride ImpurityⅡ: Impurity A(9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid (RS-Ofloxacin Carboxylic Acid))
  • Ofloxacin Carboxylic Acid
  • 6,7-Difluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.0^{5,13}]trideca-5(13),6,8,11-tetraene-11-carboxylic acid
  • RS-Ofloxacin Carboxylic Acid
  • 9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylicAcid&gt
  • Ofloxacin impurity A CRS
  • (RS)-9,10-Difluoro-3-methyl-7-oxo-2
  • (+/-)9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]lbenzoxazine-6-carboylic acid
  • Ofloxacin EP Impurity A (Ofloxacin Difluoro Carboxylic Acid)
  • Ofloxacin impurity A (O0120010)
  • Levofloxacin Hydrochloride ImpurityⅡ: Impurity A(9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid (RS-Ofloxacin Carboxylic Acid))
  • Levofloxacin Hydrochloride ImpurityⅡ: Impurity A(9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid_x000b_(RS-Ofloxacin Carboxylic Acid))
  • 82419-35-0
  • C13H9F2NO4
  • C13H8F2NO4
  • Heterocyclic Building Blocks
  • Benzoxazines
  • Building Blocks
  • Various Intermediates
  • Intermediates
  • Intermediates & Fine Chemicals
  • Pharmaceuticals
  • Benzoxazines
  • Building Blocks
  • Heterocyclic Building Blocks
  • OFLOXACIN INTERMIDATE