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Benzene ring

Heterocycle

APIs and Inermediates

Natural extract

Catalysts and phosphorus ligands

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1-Bromo-2-fluoro-4-(Trifluoromethoxy)benzene

3-Bromo-4-fluorophenol

2-Iodo-4-methylaniline

2-Bromo-3-fluoro-benzoic acid

3-Iodobenzotrifluoride

4-Bromo-2-fluorobenzotrifluoride

Methyl 4-fluoro-2-methylbenzoate

1,3-Dibromo-5-fluorobenzene

(R)-2-Hydroxy-4-phenylbutyric acid

Methyl 3-fluorobenzoate

Fema 3632

3-Bromo-4-methoxybenzaldehyde

2-Fluoro-5-nitroaniline

4-Aminoacetophenone

2,5-Dichlorobenzyl bromide

Methyl 3-iodo-4-methyl benzoate

3-Iodo-4-methylbenzoic acid

Anisonitrile

(2-Fluoro-phenyl)-oxo-acetonitrile

2-Bromo-1-(3-Chlorophenyl)propan-1-one

2-(Trifluoromethyl)benzyl chloride

2-Nitrobenzyl chloride

3-(2-Chlorophenyl)propionitrile

1-(4-Chlorophenyl)ethanol

3,4-Dichlorobenzyl bromide

2-(3,5-Dichlorophenyl)acetonitrile

Ethyl 4-cyanobenzoate

3,4-4-Ethyl-3-nitrobenzoic acid

4-(4-mEthylphenyl)-3-thiosemicarbazide

3-Bromophenacyl bromide

3,4-Dichlorophenylthiourae

Acetamide, n-(4,5-dichloro-2-nitrophenyl)-

3,5-Dimethoxyphenylacetonitrile

4-Chlorobenzamide

4-(Benzyloxy)-3-methoxybenzaldehyde

2-Chloro-5-aminophenol

4-Fluoroacetanilide

3-Nitrobenzyl chloride

3-(1-Bromoethyl)benzotrifluoride

3,5-Dimethoxyphenylacetic acid

5-Methoxy-2-nitrophenol

1,2-Diamino-4,5-dichlorobenzene

4-Methoxyphenyl thiourea

3-Chloro-4-methoxyaniline

3-Acetamidothioanisole

4-Bromobenzamide

Diphenylacetyl chloride

Methyl 2-fluoro-3-methylbenzoate

3-Fluoro-2-methoxybenzonitrile

5-Chloro-3-cyanobenzotrifluoride

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Chemical Name:	Topotecan hydrochloride
Cas No.:	123948-87-8
Molecular Formula:	C₂₃H₂₃N₃O₅
Molecular Weight:	421.45
Molecular Structure:

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