ChemicalBook--->CAS DataBase List--->742-20-1

742-20-1

742-20-1 Structure

742-20-1 Structure
IdentificationMore
[Name]

Cyclopenthiazide
[CAS]

742-20-1
[Synonyms]

CYCLOPENTHIAZIDE
NAVIDREX
2h-1,2,4-benzothiadiazine-7-sulfonamide,6-chloro-3-(cyclopentylmethyl)-3,4-dih
3-cyclopentylmethylhydrochlorothiazidederiv
cyclomethiazide
navidrix
salimed
salimid
su8341
tsiklometiazid
ydro-,1,1-dioxide
6-chloro-3-cyclopentylmethyl-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulphonamide 1,1-dioxide
6-Chloro-3-[cyclopentylmethyl]-3,4-dihydro-[2H]-1,2,4-benzothiadiazine-7-sulfonamide-1,1-dioxide
Cyclopentiazide
2H-1,2,4-Benzothiadiazine-7-sulfonamide, 6-chloro-3-(cyclopentylmethyl)-3,4-dihydro-, 1,1-dioxide
2H-1,2,4-Benzothiadiazine-7-sulfonamide, 6-chloro-3-(cyclopentylmethyl)-3,4-dihydro-, 1,1-dioxide (6CI, 8CI, 9CI)
6-Chloro-3-(cyclopentylmethyl)-3,4-dihydro-7-sulfamyl-2H-1,2,4-benzothiadiazine 1,1-dioxide
6-Chloro-3-cyclopentylmethyl-7-sulfamoyl-3,4-dihydro-1,2,4-benzothiadiazine 1,1-dioxide
Ciba 8341-Su
Cyclometiazid
[EINECS(EC#)]

212-012-5
[Molecular Formula]

C13H18ClN3O4S2
[MDL Number]

MFCD00865825
[Molecular Weight]

379.88
[MOL File]

742-20-1.mol
Chemical PropertiesBack Directory
[Melting point ]

230°
[Boiling point ]

605.6±65.0 °C(Predicted)
[density ]

1.3650 (rough estimate)
[refractive index ]

1.6100 (estimate)
[storage temp. ]

Refrigerator
[solubility ]

Acetonitrile (Slightly), DMSO (Slightly), Methanol (Sparingly)
[form ]

Solid
[pka]

9.00±0.40(Predicted)
[color ]

White to Off-White
[Water Solubility ]

50mg/L(room temperature)
[CAS DataBase Reference]

742-20-1(CAS DataBase Reference)
[EPA Substance Registry System]

2H-1,2,4-Benzothiadiazine-7-sulfonamide, 6-chloro-3-(cyclopentylmethyl)-3,4-dihydro-, 1,1-dioxide (742-20-1)
Hazard InformationBack Directory
[Uses]

Antihypertensive;Sodium Chloride Symporter Inhibitor
[Uses]

Cyclopenthiazide is a thiazide diuretic. Cyclopenthiazide is used in the treatment of oedema caused by conditions such as kidney disease, liver cirrhosis and pre-menstrual syndrome as well as in the treatment of hypertension.
[Definition]

ChEBI: 6-chloro-3-(cyclopentylmethyl)-1,1-dioxo-3,4-dihydro-2H-1$l^{6},2,4-benzothiadiazine-7-sulfonamide is a benzothiadiazine.
[World Health Organization (WHO)]

Cyclopenthiazide, a thiazide diuretic, was introduced in 1968. It continues to be used mainly in combination drugs.
[Clinical Use]

Thiazide diuretic:
Hypertension

Heart failure

Oedema
[Drug interactions]

Potentially hazardous interactions with other drugs
Analgesics: increased risk of nephrotoxicity with NSAIDs; antagonism of diuretic effect. Anti-arrhythmics: hypokalaemia leads to increased cardiac toxicity; effects of lidocaine and mexiletine antagonised.
Antibacterials: avoid administration with lymecycline.
Antidepressants: increased risk of hypokalaemia with reboxetine; enhanced hypotensive effect with MAOIs; increased risk of postural hypotension with tricyclics.
Antiepileptics: increased risk of hyponatraemia with carbamazepine.
Antifungals: increased risk of hypokalaemia with amphotericin.
Antihypertensives: enhanced hypotensive effect; increased risk of first dose hypotension with postsynaptic alpha-blockers like prazosin; hypokalaemia increases risk of ventricular arrhythmias with sotalol.
Antipsychotics: hypokalaemia increases risk of ventricular arrhythmias with amisulpride; enhanced hypotensive effect with phenothiazines; hypokalaemia increases risk of ventricular arrhythmias with pimozide - avoid.
Atomoxetine: hypokalaemia increases risk of ventricular arrhythmias.
Cardiac glycosides: increased toxicity if hypokalaemia occurs.
Ciclosporin: increased risk of nephrotoxicity and possibly hypomagnesaemia.
Cytotoxics: increased risk of ventricular arrhythmias due to hypokalaemia with arsenic trioxide; increased risk of nephrotoxicity and ototoxicity with platinum compounds.
Lithium: excretion reduced, increased toxicity
[Metabolism]

Cyclopenthiazide appears to be entirely excreted unchanged in the urine.
Safety DataBack Directory
[Toxicity]

LD50 in rats, mice (mg/kg): 141.8 ±24, 232.4 ±25 i.v. (Barrett)
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