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742-20-1

742-20-1 structure
742-20-1 structure
  • Name: cyclopenthiazide
  • Chemical Name: Cyclopenthiazide
  • CAS Number: 742-20-1
  • Molecular Formula: C13H18ClN3O4S2
  • Molecular Weight: 379.883
  • Catalog: API Urinary system medication Diuretic
  • Create Date: 2018-09-20 14:36:42
  • Modify Date: 2025-08-25 17:49:55
  • Cyclopenthiazide is a benzothiadiazine diuretic with antihypertensive properties. Cyclopenthiazide exerts a diuretic effect by inhibiting the reabsorption of sodium chloride and water at the distal renal tubules. Cyclopenthiazide increases the excretory capacity of the rat kidney[1].
Name Cyclopenthiazide
Synonyms UNII:VX4S2N85F5
UNII:T7817XC41U
EINECS 212-012-5
cyclopenthiazide
6-Chloro-3-cyclopentylmethyl-3,4-dihydro-7-sulfamoyl-2H-1,2,4-benzothiadiazine 1,1-Dioxide
UNII:866GEV195O
6-chloro-3-(cyclopentylmethyl)-1,1-dioxo-3,4-dihydro-2H-1λ<sup>6</sup>,2,4-benzothiadiazine-7-sulfonamide
3-Cyclopentylmethyl-6-chloro-7-sulfamyl-3,4-dihydro-1,2,4-benzothiadiazine 1,1-Dioxide
6-Chloro-3-(cyclopentylmethyl)-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide
Benesal (VAN)
2H-1,2,4-Benzothiadiazine-7-sulfonamide, 6-chloro-3-(cyclopentylmethyl)-3,4-dihydro-, 1,1-dioxide
MFCD00865825
Tsiklometiazid
Description Cyclopenthiazide is a benzothiadiazine diuretic with antihypertensive properties. Cyclopenthiazide exerts a diuretic effect by inhibiting the reabsorption of sodium chloride and water at the distal renal tubules. Cyclopenthiazide increases the excretory capacity of the rat kidney[1].
Related Catalog
In Vivo Cyclopenthiazide (0.5 mg/kg; i.p.; daily, for 3 days; female Wistar rats) increases the excretion of p-aminohippurate (PAH) [1]. Animal Model: Female Wistar rats[1] Dosage: 0.5 mg/kg Administration: Intraperitoneal injection; daily, for 3 days Result: Stimulated p-aminohippurate (PAH) excretion.
References

[1]. Bräunlich H. Postnatal development of kidney function in rats receiving thyroid hormones. Exp Clin Endocrinol. 1984 May;83(3):243-50.
Density 1.5±0.1 g/cm3
Boiling Point 605.6±65.0 °C at 760 mmHg
Melting Point 238-242ºC
Molecular Formula C13H18ClN3O4S2
Molecular Weight 379.883
Flash Point 320.1±34.3 °C
Exact Mass 379.042725
PSA 135.12000
LogP 1.58
Vapour Pressure 0.0±1.7 mmHg at 25°C
Index of Refraction 1.601

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DK8750000
CHEMICAL NAME :
2H-1,2,4-Benzothiadiazine-7-sulfonamide, 6-chloro-3-(cyclopentylmethyl)-3,4-dihydro-, 1,1-dioxide
CAS REGISTRY NUMBER :
742-20-1
LAST UPDATED :
199612
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C13-H18-Cl-N3-O4-S2
MOLECULAR WEIGHT :
379.91
WISWESSER LINE NOTATION :
T66 BSWM EM DHJ HG ISZW D1- AL5TJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
YAKUD5 Gekkan Yakuji. Pharmaceuticals Monthly. (Yakugyo Jihosha, Inaoka Bldg., 2-36 Jinbo-cho, Kanda, Chiyoda-ku, Tokyo 101, Japan) V.1- 1959- Volume(issue)/page/year: 21,775,1979
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
142 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 131,325,1961
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>1 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,314,1982
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
232 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 131,325,1961
Hazard Codes Xi
Precursor  2

DownStream  0

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