1. GPCR/G Protein
    Neuronal Signaling
  2. Adrenergic Receptor
  3. (S)-Terazosin

(S)-Terazosin 

Cat. No.: HY-B0371D Purity: 99.77% ee.: 99.16%
Handling Instructions

(S)-Terazosin is an active S-enantiomer of Terazosin. (S)-Terazosin is a potent and high-affinity α-adrenoceptor antagonist with Ki values of 3.91 nM, 0.79 nM and 1.16 nM for α1a, α1b and α1d-adrenoceptor, respectively. (S)-Terazosin also has high-affinity for α2a, α2B and α2c-adrenoceptor with Ki values of 729 nM, 3.5 nM and 46.4 nM, respectively.

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(S)-Terazosin Chemical Structure

(S)-Terazosin Chemical Structure

CAS No. : 109351-33-9

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10 mM * 1 mL in DMSO USD 275 In-stock
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Customer Review

Based on 1 publication(s) in Google Scholar

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Description

(S)-Terazosin is an active S-enantiomer of Terazosin. (S)-Terazosin is a potent and high-affinity α-adrenoceptor antagonist with Ki values of 3.91 nM, 0.79 nM and 1.16 nM for α1a, α1b and α1d-adrenoceptor, respectively. (S)-Terazosin also has high-affinity for α2a, α2B and α2c-adrenoceptor with Ki values of 729 nM, 3.5 nM and 46.4 nM, respectively[1].

IC50 & Target

Ki: 3.91 nM (α1a-adrenoceptor), 0.79 nM (α1b-adrenoceptor) and 1.16 nM (α1d-adrenoceptor); 729 nM (α2a-adrenoceptor), 3.5 nM (α2Ba-adrenoceptor) and 46.4 nM (α2c-adrenoceptor)[1]

In Vitro

The racemic compound and its enantiomers show high and apparently equal affinity for subtypes of α1-adrenoceptors with Ki values in the low nanomolar range, and showed potent antagonism of α1-adrenoceptors in isolated tissues, with the enantiomers approximately equipotent to the racemate at each α1-adrenoceptor subtype. At α2b sites, (R)-Terazosin binds less potently than either the (S)-Terazosin or racemate[1].

In Vivo

(S)-Terazosin shows antagonism of at rat atrial α2B receptor with a pEC30 of 6.93. (s)-Terazosin shows antagonism of at rat vas deferens α1A and α2A receptor with pA2 values of 8.3 and 6.12, respectively[1].

Molecular Weight

387.43

Formula

C₁₉H₂₅N₅O₄

CAS No.

109351-33-9

SMILES

O=C(N1CCN(C2=NC(N)=C3C=C(OC)C(OC)=CC3=N2)CC1)[[email protected]]4OCCC4

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 150 mg/mL (387.17 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.5811 mL 12.9056 mL 25.8111 mL
5 mM 0.5162 mL 2.5811 mL 5.1622 mL
10 mM 0.2581 mL 1.2906 mL 2.5811 mL
*Please refer to the solubility information to select the appropriate solvent.
References
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Keywords:

(S)-TerazosinAdrenergic ReceptorBeta Receptorα2-adrenoceptorα1-adrenoceptorS-enantiomerTerazosinhigh-affinityInhibitorinhibitorinhibit

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(S)-Terazosin
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