Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Purity: 98.0%
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Ethyl (S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

106939-34-8

106939-34-8 structure

106939-34-8 structure

Name: Ethyl (S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate
Chemical Name: ethyl (S)-(-)-9,10-Difluoro-3-Methyl-7-Oxo-2,3-Dihydro-7H-Pyrido[1,2,3-de]-[1,4]Benzoxazine-6-Carboxylate
CAS Number: 106939-34-8
Molecular Formula: C₁₅H₁₃F₂NO₄
Molecular Weight: 309.265
Create Date: 2018-06-17 18:12:39
Modify Date: 2026-07-15 12:42:45

Name	ethyl (S)-(-)-9,10-Difluoro-3-Methyl-7-Oxo-2,3-Dihydro-7H-Pyrido[1,2,3-de]-[1,4]Benzoxazine-6-Carboxylate
Synonyms	Ethyl (S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate (S)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic Acid E 7h-Pyrido[1,2,3-De]-1,4-Benzoxazine-6-Cboxylic Acid, 9,10-Difluoro-2,3-Dihydro-3-Methyl-7-Oxo-, Ethyl Ester, (3s) LEVOFLOXACIN ACID ESTER //BP (S)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid Ethyl Ester Ethyl (S)-9 Ofloxacin Ethyl Ester Ethyl (S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido Levofiexacin acid ester Levofloxacin-13 Levofloxacin cboxylic acid, ethyl ester T666 1A M BN EO KVT&&J C1 Gf HF LVO2 &&S Form (3S)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylicacidethylester Ethyl (3S)-9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido1,2,3-debenzob1,4oxazine-6-cboxylate Ethyl (S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylate or [levofloxacin acid ester Levofloxacin cyclization ester (S)-Ethyl 9,10-difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-cboxyla (-)-ethyl 9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido<1,2,3-de><1,4>benzoxazine-6-carboxylate Ethyl (S)-9,10-Difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-cboxylate ethyl (S)-(-)-9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylate LEVOFLOXACIN ESTER 7h-Pyrido[1,2,3-De]-1,4-Benzoxazine-6-Cboxylic Acid (S)-ethyl-9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido-[1,2,3-de]-1,4-benzoxazine-6-carboxylate Levofloxacin Ethyl Ester (S)-Ethyl 9,10-difluoro-3-Methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-cboxylate (S)-Ethyl 9,10-difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-cbox 7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CBOXYLIC ACID, 9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-, ETHYL ESTER ethyl (S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4] oxazino[2,3,4-ij]quinoline-6- ethyl cboxylate 9,10-Difluoro-3-(S)-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylate Ethyl(S)-9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylate 4-benzoxazine-6-cboxylate Levofloxacin cyclic ester Ethyl (3S)-9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylate 3-dihydro-7H-pyrido[1 10-difluoro-3-methyl-7-oxo-2 ethyl (3S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-cboxylate ethyl (S)-9,10-difluoro-3-methyl-7- oxo-2,3-dihydro-7H- [1,4]oxazino[2,3,4-ij]quinoline-6- cboxylate (S)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic Acid Ethyl Ester Ethyl 8,9-Difluoro-3(S)-methyl-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-cboxylate ETHYL (S)-9,10-DIFLUORO-3-METHYL-7-OXO-2,3-DIHYDRO-7H-PYRIDO[1,2,3-DE]-1,4-BENZOXAZINE-6-CBOXYLATE LEVOFLOXACINCYCLIZEDESTER Ethyl (3S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate Levofloxacin cyclized ester (S)-Ethyl 9,10-difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate Ethyl (S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxy (3S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic Acid Ethyl Ester

Density	1.4±0.1 g/cm3
Boiling Point	442.2±45.0 °C at 760 mmHg
Melting Point	258-260ºC
Molecular Formula	C₁₅H₁₃F₂NO₄
Molecular Weight	309.265
Flash Point	221.2±28.7 °C
Exact Mass	309.081268
PSA	57.53000
LogP	1.28
Vapour Pressure	0.0±1.1 mmHg at 25°C
Index of Refraction	1.582

HS Code	2934999090

106939-42-8 structure

106939-42-8

87-13-8 structure

87-13-8

~68%

106939-34-8 structure

106939-34-8

Literature: EP368410 A3, ;

110548-02-2 structure

110548-02-2

~%

106939-34-8 structure

106939-34-8

Literature: WO2006/48889 A1, ; Page/Page column 16-17 ;

113472-54-1 structure

113472-54-1

~74%

106939-34-8 structure

106939-34-8

Literature: Chemical and pharmaceutical bulletin, , vol. 35, # 5 p. 1896 - 1902

91040-39-0 structure

91040-39-0

~%

106939-34-8 structure

106939-34-8

Literature: Chemical and pharmaceutical bulletin, , vol. 35, # 5 p. 1896 - 1902

100986-87-6 structure

100986-87-6

~%

106939-34-8 structure

106939-34-8

Literature: Chemical and pharmaceutical bulletin, , vol. 35, # 5 p. 1896 - 1902

100986-91-2 structure

100986-91-2

~%

106939-34-8 structure

106939-34-8

Literature: Chemical and pharmaceutical bulletin, , vol. 35, # 5 p. 1896 - 1902

106939-31-5 structure

106939-31-5

~%

106939-34-8 structure

106939-34-8

Literature: Chemical and pharmaceutical bulletin, , vol. 35, # 5 p. 1896 - 1902

Precursor 5
106939-42-8 87-13-8 110548-02-2 113472-54-1
106939-31-5
DownStream 1
100986-89-8

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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