Product Name

  • Name

    Indapamide

  • EINECS 248-012-7
  • CAS No. 26807-65-8
  • Article Data8
  • CAS DataBase
  • Density 1.51 g/cm3
  • Solubility Soluble in ethanol. Insoluble in water
  • Melting Point 160-162 °C
  • Formula C16H16ClN3O3S
  • Boiling Point 110.4°C (rough estimate)
  • Molecular Weight 365.84
  • Flash Point
  • Transport Information
  • Appearance Crystalline solid
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 26807-65-8 (Indapamide)
  • Hazard Symbols
  • Synonyms Lozol (TN);Natrix;Tertensif;4-chloro-N-(2-methyl-2,3-dihydro-1H-indol-3-yl)-3-sulfamoyl-benzamide;Indapamide[3-(aminosulfonyl)-4-chloro-N-(2.3-dihydro-2-methyl-1H-indol-1-yl)benzamide];4-chloro-N-(2-methyl-2,3-dihydroindol-1-yl)-3-sulfamoyl-benzamide;S 1520;Lozol;SE 1520;Indapamide (JAN/USP);Prestwick_606;Natrix (TN);Benzamide,3-(aminosulfonyl)-4-chloro-N-(2,- 3-dihydro-2-methyl-1H-indol-1-yl)-;Indapamid;Indapamide [GMP];
  • PSA 100.88000
  • LogP 4.32040

Synthetic route

Dehydroindapamide
63968-75-2

Dehydroindapamide

Indapamide
26807-65-8

Indapamide

Conditions
ConditionsYield
With sodium tetrahydroborate; hexachloroplatinic acid; hydrogen In ethanol at 10℃; for 1h;99.3%
N-amino-2-methylindoline hydrochloride

N-amino-2-methylindoline hydrochloride

C8H5Cl2NO5S

C8H5Cl2NO5S

Indapamide
26807-65-8

Indapamide

Conditions
ConditionsYield
With triethylamine In dichloromethane at 15℃; for 6h; Temperature; Solvent;96.89%
4-chloro-3-sulphamoylbenzoic acid
1205-30-7

4-chloro-3-sulphamoylbenzoic acid

2-methyl indoline
6872-06-6

2-methyl indoline

Indapamide
26807-65-8

Indapamide

Conditions
ConditionsYield
Stage #1: 2-methyl indoline With triethylamine; hydroxylamine-O-sulfonic acid at 10℃;
Stage #2: 4-chloro-3-sulphamoylbenzoic acid With dicyclohexyl-carbodiimide at 15℃; for 6h; Reagent/catalyst;
95.5%
1-amino-2,3-dihydro-2-methyl-1H-indole mesylate

1-amino-2,3-dihydro-2-methyl-1H-indole mesylate

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran80.5%
4-chloro-3-sulphamoylbenzoic acid
1205-30-7

4-chloro-3-sulphamoylbenzoic acid

1-amino-2,3-dihydro-2-methylindole
31529-46-1

1-amino-2,3-dihydro-2-methylindole

Indapamide
26807-65-8

Indapamide

Conditions
ConditionsYield
With dicyclohexyl-carbodiimide In ethanol at -12 - -4℃; for 2h;70%
N-amino-2-methylindoline hydrochloride

N-amino-2-methylindoline hydrochloride

3-(aminosulfonyl)-4-chlorobenzoyl chloride
70049-77-3

3-(aminosulfonyl)-4-chlorobenzoyl chloride

Indapamide
26807-65-8

Indapamide

Conditions
ConditionsYield
With triethylamine In tetrahydrofuranPurity (HPLC)
Indapamide
26807-65-8

Indapamide

butyl isothiocyanate
592-82-5

butyl isothiocyanate

4-chloro-3-({[(butylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-({[(butylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: butyl isothiocyanate In acetone for 10h; Reflux;
87%
Indapamide
26807-65-8

Indapamide

4-Chlorophenyl isothiocyanate
2131-55-7

4-Chlorophenyl isothiocyanate

4-chloro-3-[({[(4-chlorophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-[({[(4-chlorophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: 4-Chlorophenyl isothiocyanate In acetone for 10h; Reflux;
87%
Indapamide
26807-65-8

Indapamide

4-fluorophenyl isothiocyanate
1544-68-9

4-fluorophenyl isothiocyanate

4-chloro-3-[({[(4-fluorophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-[({[(4-fluorophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: 4-fluorophenyl isothiocyanate In acetone for 10h; Reflux;
85%
Indapamide
26807-65-8

Indapamide

4-Methoxyphenyl isothiocyanate
2284-20-0

4-Methoxyphenyl isothiocyanate

4-chloro-3-[({[(4-methoxyphenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-[({[(4-methoxyphenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: 4-Methoxyphenyl isothiocyanate In acetone for 10h; Reflux;
78%
Indapamide
26807-65-8

Indapamide

isothiocyanatocyclohexane
1122-82-3

isothiocyanatocyclohexane

4-chloro-3-({[(cyclohexylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-({[(cyclohexylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: isothiocyanatocyclohexane In acetone for 10h; Reflux;
75%
Indapamide
26807-65-8

Indapamide

Ethyl isothiocyanate
542-85-8

Ethyl isothiocyanate

4-chloro-3-({[(ethylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-({[(ethylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: Ethyl isothiocyanate In acetone for 10h; Reflux;
74%
Indapamide
26807-65-8

Indapamide

methyl thioisocyanate
556-61-6

methyl thioisocyanate

4-chloro-3-({[(methylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-({[(methylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: methyl thioisocyanate In acetone for 10h; Reflux;
72%
Indapamide
26807-65-8

Indapamide

isopropyl isothiocyanate
2253-73-8

isopropyl isothiocyanate

4-chloro-3-({[(isopropylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-({[(isopropylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: isopropyl isothiocyanate In acetone for 10h; Reflux;
72%
Indapamide
26807-65-8

Indapamide

cyclohexylmethyl isothiocyanate
52395-66-1

cyclohexylmethyl isothiocyanate

4-chloro-3-[({[(cyclohexylmethyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-[({[(cyclohexylmethyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: cyclohexylmethyl isothiocyanate In acetone for 10h; Reflux;
72%
Indapamide
26807-65-8

Indapamide

1-isothiocyanato-2-methoxybenzene
3288-04-8

1-isothiocyanato-2-methoxybenzene

4-chloro-3-[({[(2-methoxyphenyl)amino]carbonothioyl}amino)-sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-[({[(2-methoxyphenyl)amino]carbonothioyl}amino)-sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: 1-isothiocyanato-2-methoxybenzene In acetone for 10h; Reflux;
71%
Indapamide
26807-65-8

Indapamide

Benzyl isothiocyanate
622-78-6

Benzyl isothiocyanate

3-({[(benzylamino)carbonothioyl]amino}sulfonyl)-4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

3-({[(benzylamino)carbonothioyl]amino}sulfonyl)-4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: Benzyl isothiocyanate In acetone for 10h; Reflux;
70%
Indapamide
26807-65-8

Indapamide

phenyl isothiocyanate
103-72-0

phenyl isothiocyanate

3-{[(anilinocarbonothioyl)amino]sulfonyl}-4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

3-{[(anilinocarbonothioyl)amino]sulfonyl}-4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: phenyl isothiocyanate In acetone for 10h; Reflux;
67%
Indapamide
26807-65-8

Indapamide

n-Propyl isothiocyanate
628-30-8

n-Propyl isothiocyanate

4-chloro-3-({[(propylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-({[(propylamino)carbonothioyl]amino}sulfonyl)-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: n-Propyl isothiocyanate In acetone for 10h; Reflux;
63%
Indapamide
26807-65-8

Indapamide

2-chlorophenylisothiocyanate
2740-81-0

2-chlorophenylisothiocyanate

4-chloro-3-[({[(2-chlorophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-[({[(2-chlorophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: 2-chlorophenylisothiocyanate In acetone for 10h; Reflux;
63%
Indapamide
26807-65-8

Indapamide

Benzoyl isothiocyanate
532-55-8

Benzoyl isothiocyanate

3-({[(benzoylamino)carbonothioyl]amino}sulfonyl)-4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

3-({[(benzoylamino)carbonothioyl]amino}sulfonyl)-4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: Benzoyl isothiocyanate In acetone for 10h; Reflux;
63%
Indapamide
26807-65-8

Indapamide

2, 4-dichlorophenyl isothiocyanate
6590-96-1

2, 4-dichlorophenyl isothiocyanate

4-chloro-3-[({[(2,4-dichlorophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-[({[(2,4-dichlorophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: 2, 4-dichlorophenyl isothiocyanate In acetone for 10h; Reflux;
61%
Indapamide
26807-65-8

Indapamide

2-Chloroethyl isothiocyanate
6099-88-3

2-Chloroethyl isothiocyanate

4-chloro-3-[({[(2-chloroethyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-[({[(2-chloroethyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: 2-Chloroethyl isothiocyanate In acetone for 10h; Reflux;
60%
tert-butyl isothiocyanate
590-42-1

tert-butyl isothiocyanate

Indapamide
26807-65-8

Indapamide

3-({[(tert-butylamino)carbonothioyl]amino}sulfonyl)-4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

3-({[(tert-butylamino)carbonothioyl]amino}sulfonyl)-4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: tert-butyl isothiocyanate In acetone for 10h; Reflux;
58%
Indapamide
26807-65-8

Indapamide

Dehydroindapamide
63968-75-2

Dehydroindapamide

Conditions
ConditionsYield
With manganese(IV) oxide In dichloromethane Ambient temperature; overnight;50%
With dihydrogen peroxide In water for 1h; Mechanism; Heating;
With oxygen; sodium hydroxide In water at 90℃; for 8h; pH=9; Temperature; pH-value; Reagent/catalyst; Solvent;
Indapamide
26807-65-8

Indapamide

Phenethyl isothiocyanate
2257-09-2

Phenethyl isothiocyanate

4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)-3-[({[(2-phenylethyl)amino] carbonothioyl}amino)sulfonyl]benzamide

4-chloro-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)-3-[({[(2-phenylethyl)amino] carbonothioyl}amino)sulfonyl]benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: Phenethyl isothiocyanate In acetone for 10h; Reflux;
48%
Indapamide
26807-65-8

Indapamide

4-isothiocyanatobenzonitrile
2719-32-6

4-isothiocyanatobenzonitrile

4-chloro-3-[({[(4-cyanophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

4-chloro-3-[({[(4-cyanophenyl)amino]carbonothioyl}amino)sulfonyl]-N-(2-methyl-2,3-dihydro-1H-indole-1-yl)benzamide

Conditions
ConditionsYield
Stage #1: Indapamide With potassium carbonate In acetone for 0.5h; Reflux;
Stage #2: 4-isothiocyanatobenzonitrile In acetone for 10h; Reflux;
38%
Indapamide
26807-65-8

Indapamide

A

(R)-indapamide

(R)-indapamide

B

(S)-indapamide

(S)-indapamide

Indapamide
26807-65-8

Indapamide

6-((bis-(tert-butyl))phosphono-difluoromethyl)-2-naphthoic acid
219316-47-9

6-((bis-(tert-butyl))phosphono-difluoromethyl)-2-naphthoic acid

({6-[2-chloro-5-(2-methyl-2,3-dihydro-indol-1-ylcarbamoyl)-benzenesulfonylaminocarbonyl]-naphthalen-2-yl}-difluoro-methyl)-phosphonic acid di-tert-butyl ester

({6-[2-chloro-5-(2-methyl-2,3-dihydro-indol-1-ylcarbamoyl)-benzenesulfonylaminocarbonyl]-naphthalen-2-yl}-difluoro-methyl)-phosphonic acid di-tert-butyl ester

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride

Indapamide Chemical Properties

Molecular Structure of Indapamide (CAS NO.26807-65-8):

IUPAC Name: 4-Chloro-N-(2-methyl-2,3-dihydroindol-1-yl)-3-sulfamoylbenzamide 
 Molecular Formula: C16H16ClN3O3S
Molecular Weight: 365.83
EINECS: 248-012-7  
Melting Point: 160-162 °C
Index of Refraction: 1.693
Molar Refractivity: 92.82 cm3
Molar Volume: 241.8 cm3
Surface Tension: 73.7 dyne/cm
Density: 1.51 g/cm3
Appearance: Crystalline Solid
Canonical SMILES: CC1CC2=CC=CC=C2N1NC(=O)C3=CC(=C(C=C3)Cl)S(=O)(=O)N
InChI: InChI=1S/C16H16ClN3O3S/c1-10-8-11-4-2-3-5-14(11)20(10)19-16(21)12-6-7-13(17)15(9-12)24(18,22)23/h2-7,9-10H,8H2,1H3,(H,19,21)(H2,18,22,23)
InChIKey: NDDAHWYSQHTHNT-UHFFFAOYSA-N
Classification Code: Antihypertensive; Antihypertensive agents; Cardiovascular Agents; Diuretic; Diuretics; Drug / Therapeutic Agent;; Natriuretic Agents; Reproductive Effect

Indapamide Uses

 Indapamide (CAS NO.26807-65-8) is a non-thiazide sulphonamide diuretic drug marketed by Servier, generally used in the treatment of hypertension, as well as decompensated cardiac failure.

Indapamide Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 intraperitoneal 347mg/kg (347mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 25, Pg. 1491, 1975.
guinea pig LD50 intravenous 272mg/kg (272mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 25, Pg. 1491, 1975.
guinea pig LD50 oral > 3gm/kg (3000mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 25, Pg. 1491, 1975.
mouse LD50 intraperitoneal 410mg/kg (410mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 25, Pg. 1491, 1975.
mouse LD50 intravenous 577mg/kg (577mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 25, Pg. 1491, 1975.
mouse LD50 oral > 3gm/kg (3000mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 25, Pg. 1491, 1975.
mouse LD50 subcutaneous > 10gm/kg (10000mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 12, Pg. 1110, 1981.
rabbit LD50 intravenous 337mg/kg (337mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: ATAXIA

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 12, Pg. 1110, 1981.
rat LD50 intraperitoneal 393mg/kg (393mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 25, Pg. 1491, 1975.
rat LD50 intravenous 394mg/kg (394mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 25, Pg. 1491, 1975.
rat LD50 oral > 3gm/kg (3000mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 25, Pg. 1491, 1975.
rat LD50 subcutaneous > 5gm/kg (5000mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 12, Pg. 1110, 1981.

Indapamide Safety Profile

Poison by intravenous and intraperitoneal routes. Experimental teratogenic and reproductive effects. When heated to decomposition it emits toxic fumes of Cl, SOx, and NOx.

Indapamide Specification

 Indapamide (CAS NO.26807-65-8), its Synonyms are 3-(Aminosulfonyl)-4-chloro-N-(2,3-dihydro-2-methyl-1H-indol-1-yl)benzamide ; 4-Chloro-N-(2-methyl-1-indolinyl)-3-sulfamoylbenzamide ; Arifon ; Bajaten ; Cormil ; Damide ; Fludex ; Indaflex ; Indamol ; Indapamida ; Ipamix ; Lozol ; Natrilix ; Noranat ; Pressurai ; Benzamide, 3-(aminosulfonyl)-4-chloro-N-(2,3-dihydro-2-methyl-1H-indol-1-yl)- (9CI) ; Benzamide, 3-(aminosulfonyl)-4-chloro-N-(2,3-dihydro-2-methyl-1H-indol-l-yl)- ; Benzamide, 4-chloro-N-(2-methyl-1-indolinyl)-3-sulfamoyl- .

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