321-14-2

Basic information

• Product Name: 5-Chloro-2-hydroxybenzoic acid
• Synonyms: 5-Chlorosalicylic acidKosher & Halal certified99.0-101.0% (Assay on dried basis);5-Chloro-2-hydroxybenzoic acid for synthesis;2-Hydroxy-5-chlorobenzoic acid;5 CSA;5-chloro-2-hydroxy-benzoicaci;5-chloro-salicylicaci;Benzoic acid, 5-chloro-2-hydroxy-;Salicylic acid, 5-chloro-
• CAS NO: 321-14-2
• Molecular Formula: C₇H₅ClO₃
• Molecular Weight: 172.57
• EINECS: 206-283-9
• Product Categories: Carboxylic Acids;C-CH;Cell Biology;Chemical Synthesis;Organic Building Blocks;API Intermediate;FINE Chemical & INTERMEDIATES;Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts;Amino Acid Derivatives;Bioactive Small Molecules;Building Blocks;C7;Carbonyl Compounds
• Mol File: 321-14-2.mol
• Article Data: 39

Chemical Properties

• Melting Point: 171-172 °C(lit.)
• Boiling Point: 244.67°C (rough estimate)
• Flash Point: 147.6 °C
• Appearance: white crystalline powder
• Density: 1.3766 (rough estimate)
• Vapor Pressure: 0.000132mmHg at 25°C
• Refractive Index: 1.4580 (estimate)
• Storage Temp.: Store below +30°C.
• Solubility: 1g/l
• PKA: pK1:2.63 (25°C)
• Water Solubility: 1 g/L (20 ºC)
• BRN: 2046665
• CAS DataBase Reference: 5-Chloro-2-hydroxybenzoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Chloro-2-hydroxybenzoic acid(321-14-2)
• EPA Substance Registry System: 5-Chloro-2-hydroxybenzoic acid(321-14-2)

Safety Data

• Hazard Codes: Xn
• Statements: 22-36/38-36/37/38-20/21/22
• Safety Statements: 26-36-37/39
• RIDADR: UN 2811 6.1/PG 3
• WGK Germany: 3
• RTECS: VO2080000
• TSCA: Yes
• HazardClass: 6.1
• PackingGroup: III
• Hazardous Substances Data: 321-14-2(Hazardous Substances Data)

Usage

Chemical Properties

OFF-WHITE TO CREAM POWDER

Uses

Moth-proofing, insecticide, intermediate for pharmaceuticals, dyes, pesticides.

Definition

ChEBI: A monohydroxybenzoic acid that is 2-hydroxybenzoic acid in which the hydrogen at position 5 is replaced by chlorine.

Hazard

Toxic by ingestion.

InChI:InChI=1/C7H5ClO3/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,9H,(H,10,11)/p-1

Synthetic route

carbon dioxide (124-38-9) + 4-chloro-phenol (106-48-9) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
Stage #1: 4-chloro-phenol With sodium hydroxide In water for 2h; Autoclave; Reflux; Stage #2: carbon dioxide In N,N-dimethyl-formamide at 80 - 145℃; under 2250.23 - 3750.38 Torr; for 15h; Autoclave; Stage #3: With sulfuric acid In 5,5-dimethyl-1,3-cyclohexadiene pH=6.5;	97.65%
Stage #1: 4-chloro-phenol With Mesitol; sodium hydride In mineral oil at 100℃; for 0.0833333h; Glovebox; Stage #2: carbon dioxide In mineral oil at 185℃; under 760.051 Torr; for 2h;	85%
With potassium carbonate at 140℃; under 29420.3 Torr;

3-chlorobenzoate (535-80-8) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With oxygen; potassium acetate; palladium diacetate; p-benzoquinone In N,N-dimethyl acetamide at 115℃; under 3800.26 Torr; for 15h;	95%
With oxygen; potassium acetate; p-benzoquinone; palladium diacetate In ISOPROPYLAMIDE at 115℃; under 3800.26 Torr; for 15h; Product distribution / selectivity;	95%
Multi-step reaction with 2 steps 1: fuming nitric acid / Reduzieren des Nitrierungsprodukts mit Zinn und Salzsaeure 2: water; nitrous acid View Scheme

salicylic acid (69-72-7) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
Stage #1: salicylic acid With sulfuric acid In acetonitrile at 20℃; for 0.0833333h; Stage #2: With N-chloro-succinimide In acetonitrile at 20℃; for 2.5h; regioselective reaction;	92%
With sodium periodate; sulfuric acid; sodium dodecyl-sulfate; acetic acid; sodium chloride In water at 25℃; for 2h;	85%
With hydrogenchloride; sodium percarbonate; dihydrogen peroxide In dichloromethane; water at 40 - 45℃; Reagent/catalyst; Solvent; Green chemistry;	82.5%

2,5-dichlorobenzoic acid (50-79-3) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With pyridine; water; potassium carbonate; copper for 0.25h; sonication;	92%
With pyridine; copper; potassium carbonate In water for 2h; Heating;	84%
With sodium methylate at 150℃; Eintragen des Reaktionsgemisches in Wasser;
With copper(l) iodide; copper; potassium carbonate at 170℃; under 4413.05 Torr;

sodium ethyl carbonate (17201-44-4) + 4-chloro-phenol (106-48-9) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With carbon dioxide at 190℃; under 7600.51 Torr; for 6h; Time; Temperature; Pressure; Autoclave; regioselective reaction;	86.1%

2-bromo-5-chlorobenzoic acid (21739-93-5) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With copper(I) oxide; 2-pyridinealdoxime; cesium hydroxide; tetrabutylammomium bromide In water at 100℃; for 48h; Inert atmosphere;	81%

6-chloro-2-methyl-4H-chromen-4-one (69693-00-1) + furan-2,3,5(4H)-trione pyridine (1:1) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

2-methyl-4-chloroanisole (3260-85-3) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With potassium permanganate beim Erwaermen mit Jodwasserstoffsaeure;

5-chloro-2-hydroxybenzonitrile (13589-72-5) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With sulfuric acid; water at 200℃;

5,5'-thio-bis(2-hydroxy-benzoic acid) (1820-99-1) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With sulfuryl dichloride; benzene

tetrachloromethane (56-23-5) + 4-chloro-phenol (106-48-9) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With sodium hydroxide

4-chloro-phenol (106-48-9) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With tetrachloromethane; potassium hydroxide; ethanol at 140℃; im geschlossenen Rohr;
Multi-step reaction with 4 steps 1.1: 1H-imidazole / N,N-dimethyl-formamide / 0.5 h / 0 - 20 °C / Inert atmosphere 1.2: 0 - 20 °C / Inert atmosphere 2.1: water; sodium hydrogencarbonate / N,N-dimethyl-formamide; diethyl ether / 0.5 h / 20 °C / Inert atmosphere 3.1: palladium diacetate; silver(I) acetate; N-tert-butoxycarbonyl-L-leucine; 2,2,2-trifluoroethanol / 1,2-dichloro-ethane / 0.08 h / 95 °C / Inert atmosphere 3.2: 18 h / 95 °C / Inert atmosphere 4.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / Inert atmosphere View Scheme
With oxygen; potassium acetate; palladium diacetate; p-benzoquinone In N,N-dimethyl acetamide at 115℃; for 15h; Schlenk technique; regioselective reaction;
With tetrachloromethane; sodium hydroxide; copper

5-chloroanthranilic acid (635-21-2) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With water; cis-nitrous acid

N,N-dichloro-p-toluenesulfonamide (473-34-7) + salicylic acid (69-72-7) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With chloroform

salicylic acid (69-72-7) → 5-chloro-2-hydroxybenzoic acid (321-14-2) + 3,5-dichlorosalicylic acid (320-72-9)

Conditions	Yield
With ethanol; chlorine
With tert-butylhypochlorite In water
With ethanol beim Chlorieren; Trennung ueber die Bariumsalze;
With antimonypentachloride

salicylic acid (69-72-7) → 5-chloro-2-hydroxybenzoic acid (321-14-2) + 3-Chloro-2-hydroxybenzoic acid (1829-32-9)

Conditions	Yield
With sodium carbonate bei der Chlorierung;
With sodium hydroxide; sodium hypochlorite at 20℃; for 2.5h; pH > 12; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
With N-chlorotriethylammonium chloride In trifluoroacetic acid Ambient temperature; Yield given. Yields of byproduct given;

2-hydroxy-benzoic acid ethyl ester (118-61-6) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With sulfuryl dichloride Behandeln mit Kalilauge;

2-acetoxy-5-chloro-benzoic acid (1734-62-9) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With sodium hydroxide; alpha cyclodextrin In water at 25℃; Rate constant; Ionic strength: 1.0 (NaCl); effect of pH, concentration of α-cyclodextrin;
With water at 25℃; Kinetics;

4-chlorosalicylate (45866-17-9) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
In ethanol; water at 25℃; Equilibrium constant;

6-chloro-2-methyl-4H-chromen-4-one (69693-00-1) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With sodium hydroxide; dihydrogen peroxide In methanol at 20℃; Oxidation;
Multi-step reaction with 2 steps 1: 59 percent / AcONa / 2 h / 260 - 270 °C 2: 10 percent aq. NaOH / ethanol / 4 h / Heating View Scheme
Multi-step reaction with 2 steps 1: 88 percent / Na / diethyl ether 2: 10 percent aq. KOH View Scheme

3-(6-chloro-4-oxo-4H-chromen-2-yl)-2-oxo-propionic acid ethyl ester (144880-76-2) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
With potassium hydroxide Hydrolysis;

6-Chloro-2-(3-phthalidenemethylene)chromone (144880-82-0) → 5-chloro-2-hydroxybenzoic acid (321-14-2) + benzene-1,2-dicarboxylic acid (88-99-3)

Conditions	Yield
With sodium hydroxide In ethanol for 4h; Hydrolysis; Heating;

6-chloro-2,3-dimethyl-chromen-4-one (99852-42-3) + diluted alkali → 5-chloro-2-hydroxybenzoic acid (321-14-2)

6-Chloro-chromen-2-one (2051-59-4) + potassium hydroxide → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
beim Schmelzen;

6-chloro-2,3-diphenyl-4H-chromen-4-one + KOH-solution → 5-chloro-2-hydroxybenzoic acid (321-14-2) + benzoic acid (65-85-0) + 4-chloro-2-phenacetyl-phenol

water (7732-18-5) + cis-nitrous acid (7782-77-6) + 5-chloroanthranilic acid (635-21-2) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

chlorine (7782-50-5) + nitrobenzene (98-95-3) + salicylic acid (69-72-7) → 5-chloro-2-hydroxybenzoic acid (321-14-2)

5-chlorosalicyclaldehyde (635-93-8) + chromic acid → 5-chloro-2-hydroxybenzoic acid (321-14-2)

tetrachloromethane (56-23-5) + 4-chloro-phenol (106-48-9) + furan-2,3,5(4H)-trione pyridine (1:1) + copper → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
bei Siedetemperatur;

tetrachloromethane (56-23-5) + ethanol (64-17-5) + 4-chloro-phenol (106-48-9) + KOH → 5-chloro-2-hydroxybenzoic acid (321-14-2)

Conditions	Yield
at 140℃;

5-chloro-2-hydroxybenzoic acid (321-14-2) + 3-Chloro-2-methylpropene (563-47-3) → 2-methylallyl 5-chloro-2-(2-methylallyloxy)benzoate

Conditions	Yield
Stage #1: 5-chloro-2-hydroxybenzoic acid With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 65℃; for 0.0833333h; Inert atmosphere; Stage #2: 3-Chloro-2-methylpropene In N,N-dimethyl-formamide at 65℃; for 21h;	100%
With potassium carbonate In N-methyl-acetamide

5-chloro-2-hydroxybenzoic acid (321-14-2) + 2-Methylphenylboronic acid (16419-60-6) → 4-hydroxy-2'-methylbiphenyl-3-carboxylic acid (25205-15-6)

Conditions	Yield
With sodium 2'‐(dicyclohexylphosphaneyl)‐2,6‐diisopropyl‐[1,1'‐biphenyl]‐3‐sulfonate; palladium diacetate; potassium carbonate In water at 20℃; for 12h; Suzuki-Miyaura coupling;	99%

5-chloro-2-hydroxybenzoic acid (321-14-2) → 4-chloro-2-hydroxymethylphenol (5330-38-1)

Conditions	Yield
With lithium aluminium tetrahydride In diethyl ether for 0.75h; Heating;	97%
With sodium tetrahydroborate; Trimethyl borate; dimethyl sulfate In tetrahydrofuran at 20℃; for 4.5h;	96%
With borane-THF; boron trifluoride diethyl etherate In tetrahydrofuran at 20℃; for 18h;	85%

5-chloro-2-hydroxybenzoic acid (321-14-2) + acetic anhydride (108-24-7) → 2-acetoxy-5-chloro-benzoic acid (1734-62-9)

Conditions	Yield
With sulfuric acid for 3h; Heating / reflux;	97%
With sulfuric acid	93%
With sulfuric acid	93%

5-chloro-2-hydroxybenzoic acid (321-14-2) + tributyltin chloride (1461-22-9) → C19H31ClO3Sn

Conditions	Yield
Stage #1: 5-chloro-2-hydroxybenzoic acid With potassium hydroxide In methanol at 20℃; for 1h; Stage #2: tributyltin chloride In methanol for 5h;	97%

zirconocene dichloride (1291-32-3) + 5-chloro-2-hydroxybenzoic acid (321-14-2) → [Cp2Zr(μ2-O',O''C-C6H3(OH)Cl)2] (1192558-54-5)

Conditions	Yield
In hydrogenchloride; dichloromethane mixt. of zirconocene dichloride in 1 M aq. HCl and dichlorobenzoic acidin CH2Cl2 was stirred for 30 min at room temp.; organic layer was separated, dried over MgSO4, filtered, concd. in vac.,crystd. form CH2Cl2/Et2O/hexane, elem. anal.;	96.3%

5-chloro-2-hydroxybenzoic acid (321-14-2) → 5-chloro-2-hydroxy-3-nitrobenzoic acid (7195-78-0)

Conditions	Yield
With sulfuric acid; nitric acid at 20℃;	96%
With sulfuric acid; nitric acid at 0 - 20℃; for 5.66667h;	95%
With sulfuric acid; nitric acid for 6h; Ambient temperature;	90.5%

5-chloro-2-hydroxybenzoic acid (321-14-2) → 3-bromo-5-chloro-2-hydroxy benzoic acid (4068-58-0)

Conditions	Yield
With bromine In chloroform	96%
With N-Bromosuccinimide In carbon disulfide at 25℃; for 14h;
With bromine; acetic acid at 80℃; for 8h;	204.6 g
With bromine; acetic acid at 80℃; for 8h;	204.6 g

dichloromethane (75-09-2) + 5-chloro-2-hydroxybenzoic acid (321-14-2) → 6-chloro-4H-benzo[d][1,3]dioxin-4-one (342411-03-4)

Conditions	Yield
With potassium phosphate tribasic trihydrate In N,N-dimethyl-formamide at 100℃; under 760.051 Torr; for 6h; Green chemistry;	96%

5-chloro-2-hydroxybenzoic acid (321-14-2) + 5,5-dibenzyl-2,3,4,5-tetrahydropyridine (1416767-53-7) → 6,6-dibenzyl-2-chloro-6,7,8,9-tetrahydro-5aH,11H-pyrido[2,1-b][1,3]benzoxazin-11-one

Conditions	Yield
With 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide; N-ethyl-N,N-diisopropylamine In toluene at 90℃; for 20h;	96%

5-chloro-2-hydroxybenzoic acid (321-14-2) + acetyl chloride (75-36-5) → 2-acetoxy-5-chloro-benzoic acid (1734-62-9)

Conditions	Yield
With pyridine; sulfuric acid In toluene	95.6%
With triethylamine In tetrahydrofuran at 20℃;	46.7%

sebacoyl chloride (111-19-3) + 5-chloro-2-hydroxybenzoic acid (321-14-2) → 1,10-bis-4-chlorosalicyl-sebacate

Conditions	Yield
Stage #1: sebacoyl chloride; 5-chloro-2-hydroxybenzoic acid With pyridine In tetrahydrofuran for 2h; Stage #2: With hydrogenchloride In tetrahydrofuran; water pH=2;	95%

5-chloro-2-hydroxybenzoic acid (321-14-2) + dibutyltin chloride (683-18-1) → 2C7H4ClO3(1-)*Sn(4+)*2C4H9(1-)

Conditions	Yield
Stage #1: 5-chloro-2-hydroxybenzoic acid With potassium hydroxide In methanol at 20℃; for 1h; Stage #2: dibutyltin chloride In methanol for 5h;	95%

5-chloro-2-hydroxybenzoic acid (321-14-2) + 2,4-difluorophenylboronic acid (144025-03-6) → 2',4'-difluoro-4-hydroxybiphenyl-3-carboxylic acid (22494-42-4)

Conditions	Yield
With bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II); tetrabutylammomium bromide; potassium carbonate In ethanol; water for 8h; Concentration; Reagent/catalyst; Suzuki Coupling; Inert atmosphere; Reflux;	95%

5-chloro-2-hydroxybenzoic acid (321-14-2) + 2-[(N,N-dimethylamino)methyl]ferrocenylmethylamine → C21H23ClFeN2O2

Conditions	Yield
With pyridine; dicyclohexyl-carbodiimide at 80℃; for 2h; Microwave irradiation;	95%

5-chloro-2-hydroxybenzoic acid (321-14-2) → methyl 5-chloro-2-hydroxybenzoate (4068-78-4)

Conditions	Yield
With sulfuric acid In methanol	94.8%
With thionyl chloride In methanol; ethyl acetate	74%
With thionyl chloride In methanol; ethyl acetate	74%

conc. H2 SO4 + 5-chloro-2-hydroxybenzoic acid (321-14-2) → methyl 5-chloro-2-hydroxybenzoate (4068-78-4)

Conditions	Yield
In methanol	94.8%

methanol (67-56-1) + 5-chloro-2-hydroxybenzoic acid (321-14-2) → methyl 5-chloro-2-hydroxybenzoate (4068-78-4)

Conditions	Yield
With thionyl chloride for 168h; Inert atmosphere; Reflux;	94%
With sulfuric acid for 120h; Inert atmosphere; Reflux;	91%
With sulfuric acid for 120h; Reflux;	91%

5-chloro-2-hydroxybenzoic acid (321-14-2) + triphenyltin chloride (639-58-7) → C25H19ClO3Sn

Conditions	Yield
Stage #1: 5-chloro-2-hydroxybenzoic acid With potassium hydroxide In methanol at 20℃; for 1h; Stage #2: triphenyltin chloride In methanol for 5h;	94%

2-fluoroethyl bromide (762-49-2) + 5-chloro-2-hydroxybenzoic acid (321-14-2) → 2-fluoroethyl 5-chloro-2-(2-fluoroethoxy)benzoate (334652-76-5)

Conditions	Yield
With sodium hydride In N,N-dimethyl-formamide at 80℃; for 48h;	93.4%
With sodium hydride

bis(3-bromopropyl) ether (58929-72-9) + 5-chloro-2-hydroxybenzoic acid (321-14-2) → 5-chloro-2-(2-methoxyethoxy)benzoic acid 2-methoxyethyl ester (521065-04-3)

Conditions	Yield
With potassium carbonate In ethyl acetate; acetonitrile	93%

5-chloro-2-hydroxybenzoic acid (321-14-2) + copper dichloride → 5-chloro-2-hydroxy benzoic acid copper (II) salt

Conditions	Yield
Stage #1: 5-chloro-2-hydroxybenzoic acid With sodium hydroxide In water Stage #2: copper dichloride In water for 24h;	93%

5-chloro-2-hydroxybenzoic acid (321-14-2) + 4-cyanophenylboronic acid (126747-14-6) → 4'-cyano-4-hydroxybiphenyl-3-carboxylic acid

Conditions	Yield
With sodium 2'‐(dicyclohexylphosphaneyl)‐2,6‐diisopropyl‐[1,1'‐biphenyl]‐3‐sulfonate; palladium diacetate; potassium carbonate In water at 80℃; for 12h; Suzuki-Miyaura coupling;	92%

5-chloro-2-hydroxybenzoic acid (321-14-2) + dibutyltin chloride (683-18-1) → C15H22Cl2O3Sn

Conditions	Yield
Stage #1: 5-chloro-2-hydroxybenzoic acid With potassium hydroxide In methanol at 20℃; for 1h; Stage #2: dibutyltin chloride In methanol for 5h;	92%

bis(cyclopentadienyl)titanium dichloride (1271-19-8) + 5-chloro-2-hydroxybenzoic acid (321-14-2) → Ti(η5-C5H5)2(C6H3Cl(O)(CO2)) (233600-03-8)

Conditions	Yield
With NaOH; catalyst: C2H5OH In ethanol; chloroform; water-d2 Kinetics; NaOH and C2H5OH added to mixt. of (C5H5)2TiCl2 and acid dissolved in CHCl3, stirred for 30 min at room temp.; dried (anhydrous MgSO4), filtered, filtrate concd. in vac., ppt. recrystd. from CH2Cl2/hexane; elem. anal.;	91.1%

5-chloro-2-hydroxybenzoic acid (321-14-2) + trimethyltin(IV)chloride (1066-45-1) → C10H13ClO3Sn

Conditions	Yield
Stage #1: 5-chloro-2-hydroxybenzoic acid With potassium hydroxide In methanol at 20℃; for 1h; Stage #2: trimethyltin(IV)chloride In methanol for 5h;	91%

Upstream product

• 106-48-9 4-chloro-phenol 
• 635-21-2 5-chloroanthranilic acid 
• 473-34-7 N,N-dichloro-p-toluenesulfonamide 
• 69-72-7 salicylic acid 
• 118-61-6 2-hydroxy-benzoic acid ethyl ester 
• 7732-18-5 water 
• 7782-77-6 cis-nitrous acid 
• 7782-50-5 chlorine 
• 98-95-3 nitrobenzene 
• 635-93-8 5-chlorosalicyclaldehyde 
• 56-23-5 tetrachloromethane 
• 64-17-5 ethanol 
• 7647-18-9 antimonypentachloride 
• 7647-01-0 hydrogenchloride 

Downstream Products

• 718612-48-7 5-chloro-2-hydroxy-benzoic acid-(4-nitro-phenyl ester) 
• 1734-62-9 2-acetoxy-5-chloro-benzoic acid 
• 6626-92-2 5-chloro-N-(2-chlorophenyl)-2-hydroxybenzamide 
• 3438-16-2 5-chloro-2-methoxybenzoic acid 
• 33924-48-0 methyl 5-chloro-2-methoxybenzoate 
• 2627-75-0 N-(4-bromophenyl)-5-chloro-2-hydroxyl benzamide 
• 6137-37-7 5-chloro-2-hydroxy-benzoic acid-(2-bromo-anilide) 
• 40165-53-5 5-Chloro-2-hydroxy-benzoic acid [(2-bromo-acetyl)-(2-tert-butyl-6-methyl-phenyl)-amino]-methyl ester 
• 26276-85-7 6-chloro-2-(2-hydroxyphenyl)-4H-benzo[e][1,3]oxazin-4-one 
• 90426-01-0 5-chloro-2-hydroxy-N-(2-methyl-4-nitrophenyl)benzamide 
• 41433-12-9 2-(2'-Hydroxy-5'-chlorophenyl)benzimidazole 
• 51589-62-9 2-(2'-Hydroxy-5'-chlorophenyl)benzoxazole 
• 182617-71-6 5-Chloro-N-(2-diethylamino-ethyl)-2-hydroxy-benzamide 
• 7195-78-0 5-chloro-2-hydroxy-3-nitrobenzoic acid 

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