Pharmaceutical Intermediates

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Avanafil intermediate

CAS code :330785-81-4

English name :

(5-PyriMidinecarboxylicacid, 4-[[(3-chloro-4-Methoxyphenyl)Methyl]aMino]-2-(Methylthio)-,ethyl ester)

This product is an intermediate of avanafil derivatives.
Avanafil is a phosphodiesterase (PDE5) inhibitor used for the treatment of erectile dysfunction.

Besifloxacin hydrochloride

Product Name: Besifloxacin Hydrochloride

CAS No.: 405165-61-9
Purity: ≥99%
Shelf Life: 1 year
Storage: Store in a cool, dry place away from light
Brand: Chenxi Pharma
Origin: Jinan, China
Category: API (Active Pharmaceutical Ingredient)


Description

Besifloxacin hydrochloride is a next-generation fluoroquinolone antibiotic developed by Bausch & Lomb. Approved by the FDA in May 2009, it is the first fluoroquinolone specifically developed for ophthalmic use. Marketed under the brand name Besivance, it is formulated as a 0.6% ophthalmic suspension for treating bacterial conjunctivitis.


Mechanism of Action

Besifloxacin exerts its bactericidal activity by inhibiting bacterial DNA gyrase and topoisomerase IV, enzymes critical for bacterial DNA replication and cell division. It is effective against a broad spectrum of Gram-positive and Gram-negative pathogens.


Clinical Efficacy

Clinical trials involving over 2400 patients demonstrated:

  • 80% bacterial eradication rate

  • High efficacy in both adults and children (≥1 year)

  • Low incidence of adverse effects (<3%), primarily mild ocular symptoms


Regulatory & Market Status

  • Patented: WO2008091752, US2008176834

  • Launched in the USA

  • Clinical approval granted in China (June 2010)


Keywords: 405165-61-9; Besifloxacin Hydrochloride; Besivance; Fluoroquinolone ophthalmic antibiotic

Carboplatin

English Name: Carboplatin
Alias: 1,1-Cyclobutanedicarboxylatodiammineplatinum (II); Paraplatin; cis-Diamine(1,1-cyclobutanedicarboxylato)platinum(II)
Product Name: Carboplatin; cis-1,1-Cyclobutanedicarboxylic acid diammine platinum

Molecular Structure: CAS Registry Number: 41575-94-4, Carboplatin, cis-1,1-Cyclobutanedicarboxylic acid diammine platinum
Molecular Formula: C6H12N2O4Pt
Molecular Weight: 371.25
CAS Registry Number: 41575-94-4
EC Number: 255-446-0

keyword: 卡铂;Carboplatin;41575-94-4

Cefovecin sodium

Product Name: Sodium (6R,7R)-7-[[(2Z)-2-(2-Amino-1,3-Thiazol-4-Yl)-2-Methoxyiminoacetyl]Amino]-8-Oxo-3-[(2S)-Oxolan-2-Yl]-5-Thia-1-Azabicyclo[4.2.0]Oct-2-Ene-2-Carboxylate
English Name: Sodium (6R,7R)-7-[[(2Z)-2-(2-Amino-1,3-Thiazol-4-Yl)-2-Methoxyiminoacetyl]Amino]-8-Oxo-3-[(2S)-Oxolan-2-Yl]-5-Thia-1-Azabicyclo[4.2.0]Oct-2-Ene-2-Carboxylate

Alias: Sodium (6R,7R)-7-[[(2Z)-2-(2-Aminothiazol-4-Yl)-2-Methoxyimino-Acetyl]Amino]-8-Oxo-3-[(2S)-Tetrahydrofuran-2-Yl]-5-Thia-1-Azabicyclo[4.2.0]Oct-2-Ene-2-Carboxylate; Sodium (6R,7R)-7-[[(2Z)-2-(2-Amino-4-Thiazolyl)-2-Methoxyimino-1-Oxoethyl]Amino]-8-Oxo-3-[(2S)-2-Tetrahydrofuranyl]-5-Thia-1-Azabicyclo[4.2.0]Oct-2-Ene-2-Carboxylate; Sodium (6R,7R)-7-[[(2Z)-2-(2-Aminothiazol-4-Yl)-2-Methoxyimino-Acetyl]Amino]-8-Keto-3-(Tetrahydrofuryl)-5-Thia-1-Azabicyclo[4.2.0]Oct-2-Ene-2-Carboxylate

Molecular Structure: CAS Registry Number: 141195-77-9, Sodium (6R,7R)-7-[[(2Z)-2-(2-Amino-1,3-Thiazol-4-Yl)-2-Methoxyiminoacetyl]Amino]-8-Oxo-3-[(2S)-Oxolan-2-Yl]-5-Thia-1-Azabicyclo[4.2.0]Oct-2-Ene-2-Carboxylate
Molecular Formula: C17H18N5NaO6S2
Molecular Weight: 475.47
CAS Registry Number: 141195-77-9

关键字: 头孢维星钠;Cefovecin sodium;141195-77-9

Chalcone dibromide

English name: Chalcone dibromide
Alias: 2,3-Dibromo-3-phenylpropiophenone; Benzalacetophenone dibromide; Chalcone dibromide; NSC 2715
Product name: Chalcone dibromide

Molecular structure: CAS Registry number: 611-91-6, Chalcone dibromide
Molecular formula: C15H12Br2O
Molecular weight: 368.06
CAS Registry number: 611-91-6
EC number: 210-282-9

Keywords: 611-91-6; Dibromo-chalcone; Lotilaner