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19728-88-2

19728-88-2 structure
19728-88-2 structure
  • Name: Methiothepin Maleate
  • Chemical Name: methiothepin maleate
  • CAS Number: 19728-88-2
  • Molecular Formula: C24H28N2O4S2
  • Molecular Weight: 472.62
  • Catalog: Signaling Pathways GPCR/G Protein 5-HT Receptor
  • Create Date: 2017-02-01 08:26:18
  • Modify Date: 2024-01-02 21:07:28
  • Methiothepin maleate is a potent and non-selective 5-HT2 receptor antagonist, with pKds of 7.10 (5-HT1A), 7.28 (5HT1B), 7.56 (5HT1C), 6.99 (5HT1D), 7.0 (5-HT5A), 7.8 (5-HT5B), 8.74 (5-HT6), and 8.99 (5-HT7), and pKis of 8.50 (5HT2A), 8.68 (5HT2B), and 8.35 (5HT2C).

Name methiothepin maleate
Synonyms methiothepin hydrogen maleate
N6-Cyclopentyladenosine
Metitepine maleate
metitepinmaleate
METHIOTHEPIN MALEATE
Description Methiothepin maleate is a potent and non-selective 5-HT2 receptor antagonist, with pKds of 7.10 (5-HT1A), 7.28 (5HT1B), 7.56 (5HT1C), 6.99 (5HT1D), 7.0 (5-HT5A), 7.8 (5-HT5B), 8.74 (5-HT6), and 8.99 (5-HT7), and pKis of 8.50 (5HT2A), 8.68 (5HT2B), and 8.35 (5HT2C).
Related Catalog
Target

pKd: 7.10 (5-HT1A), 7.28 (5HT1B), 7.56 (5HT1C), 6.99 (5HT1D)[1], 7.0 (5-HT5A), 7.8 (5-HT5B), 8.74 (5-HT6), 8.99 (5-HT7)[3] pKi: 8.50 (5-HT2A), 8.68 (5-HT2B), 8.35 (5-HT2C)[2]

In Vitro Methiothepin maleate is a 5-HT receptor antagonist, with pKds of 7.10, 7.28, 7.56, and 6.99 for 5-HT1A, 5HT1B, 5HT1C, 5HT1D[1]. Methiothepin mesylate also shows pKds of 7.0, 7.8, 8.74, and 8.99 for 5-HT5A, 5-HT5B, 5-HT6, and 5-HT7, respectively[2]. Methiothepin exhibits high affinity at 5-HT2A, 5HT2B, and 5HT2C with pKis of 8.50, 8.68, and 8.35, respectively[3].
References

[1]. Schoeffter P, et al. 5-Hydroxytryptamine (5-HT)-induced endothelium-dependent relaxation of pig coronary arteries is mediated by 5-HT receptors similar to the 5-HT1D receptor subtype. J Pharmacol Exp Ther. 1990 Jan;252(1):387-95.  

[2]. Knight AR, et al. Pharmacological characterisation of the agonist radioligand binding site of 5-HT(2A), 5-HT(2B) and 5-HT(2C) receptors. Naunyn Schmiedebergs Arch Pharmacol. 2004 Aug;370(2):114-23. Epub 2004 Jul 30.  

[3]. Hoyer D, et al. International Union of Pharmacology classification of receptors for 5-hydroxytryptamine (Serotonin). Pharmacol Rev. 1994 Jun;46(2):157-203.  

Boiling Point 462.9ºC at 760mmHg
Molecular Formula C24H28N2O4S2
Molecular Weight 472.62
Flash Point 233.8ºC
Exact Mass 472.14900
PSA 131.68000
LogP 3.99190
Vapour Pressure 3.61E-08mmHg at 25°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TL4325000
CAS REGISTRY NUMBER :
19728-88-2
LAST UPDATED :
198706
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C20-H24-N2-S2.C4-H4-O4
MOLECULAR WEIGHT :
472.66
WISWESSER LINE NOTATION :
T C676 BS&T&J FS1 I- AT6N DNTJ D1 &QV1U1VQ -C

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
125 mg/kg
TOXIC EFFECTS :
Behavioral - ataxia
REFERENCE :
CCCCAK Collection of Czechoslovak Chemical Communications. (Academic Press Inc. Ltd., 24-28 Oval Rd., London NW1 7DX, UK) V.1- 1929- Volume(issue)/page/year: 39,3338,1974
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
67600 ug/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
REFERENCE :
CCCCAK Collection of Czechoslovak Chemical Communications. (Academic Press Inc. Ltd., 24-28 Oval Rd., London NW1 7DX, UK) V.1- 1929- Volume(issue)/page/year: 39,3153,1974