Temocapril

Alias: CS-622;CS622;CS 622;Temocaprilum
Cat No.:V1780 Purity: ≥98%
Temocapril (CS-622;CS622;temocaprilum; Aceco) is a potent and long-acting angiotensin-converting enzyme (ACE) inhibitor, approved for use (not in the USA) in the treatment of hypertension.
Temocapril Chemical Structure CAS No.: 111902-57-9
Product category: RAAS
This product is for research use only, not for human use. We do not sell to patients.
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Other Forms of Temocapril:

  • Temocapril HCl
  • Temocapril-d5 (Temocapril-d5)
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Temocapril (CS-622; CS622; temocaprilum; Aceco) is a potent and long-acting angiotensin-converting enzyme (ACE) inhibitor, approved for use (not in the USA) in the treatment of hypertension. Temocapril is a prodrug-type of ACE inhibitor not approved for use in the United States, but was approved in Japan and South Korea. Temocapril can also be used in hemodialysis patients without risk of serious accumulation.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
The prodrug of Temocaprilat, an ACE inhibitor, is Temocapril hydrochloride. Temoprilat hydrochloride is easily absorbed by the small intestine and then processed by CES1 (human carboxylesterase 1) in the liver to produce its active metabolite, temoprilat [1]. In spontaneously hypertensive rats (SHR), temocapril hydrochloride (500 nM) lessens the inhibitory effects of RS (N-acetyltetradecane renin substrate) and AngI (angiotensin) on neurogenic vasodilation [2]. The redox protein thioredoxin (TRX) is stimulated by temocapril hydrochloride (0.1–10 μM; 24 h), although the expression of the antioxidant enzymes Cu/ZnSOD and Mn-SOD is unaffected [3].
ln Vivo
In addition to improving autoimmune myocarditis, temocapril (10 mg/kg; oral; 21 days) increases the expression of thioredoxin in cardiomyocytes [3]. Temocapril (30 mg/kg; oral; once daily; for 4 weeks) did not lower renal Ang II levels but does suppress angiotensin I-induced hypertension, plasma, and renal ACE activity [4].
Cell Assay
Western Blot analysis [3]
Cell Types: Cultured neonatal rat cardiomyocytes
Tested Concentrations: 0.1 μM, 1 μM, 10 μM
Incubation Duration: 24 hrs (hours)
Experimental Results: The expression of redox protein thioredoxin (TRX) was enhanced by 1.9 times at 10 μM , and does not affect TRX2, Cu/Zn-SOD or Mn-SOD protein expression.
Animal Protocol
Animal/Disease Models: Experimental autoimmune myocarditis (EAM) rat model [3]
Doses: 10 mg/kg
Route of Administration: po (oral gavage); water management; 21-day
Experimental Results: Improve EAM and prevent cellular protein oxidation. The expression of redox regulatory protein TRX in cardiomyocytes is enhanced.

Animal/Disease Models: Male Sprague Dawley rat [4]
Doses: 30 mg/kg
Route of Administration: po (oral gavage), one time/day for 4 weeks.
Experimental Results: Inhibited the increase in blood pressure caused by Ang I.
References
[1]. Fukami T, et al. In vitro evaluation of inhibitory effects of antidiabetic and antihyperlipidemic drugs on human carboxylesterase activities. Drug Metab Dispos. 2010 Dec;38(12):2173-8.
[2]. Kawasaki H, et al. Angiotensin inhibits neurotransmission of calcitonin gene-related peptide-containing vasodilator nerves in mesenteric artery of spontaneously hypertensive rats. J Pharmacol Exp Ther. 1998 Feb;284(2):508-15.
[3]. Yuan Z, et al. Temocapril treatment ameliorates autoimmune myocarditis associated with enhanced cardiomyocyte thioredoxin expression. Cardiovasc Res. 2002 Aug 1;55(2):320-8.
[4]. Ohnishi K, et al. Angiotensin-converting enzyme inhibitor does not suppress renal angiotensin II levels in angiotensin I-infused rats. J Pharmacol Sci. 2013;122(2):103-8.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C23H28N2O5S2
Molecular Weight
476.61
CAS #
111902-57-9
Related CAS #
Temocapril hydrochloride;110221-44-8;Temocapril-d5;1356840-03-3
SMILES
C(OC(=O)C(NC1CSC(C2=CC=CS2)CN(CC(O)=O)C1=O)CCC1C=CC=CC=1)C
Synonyms
CS-622;CS622;CS 622;Temocaprilum
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO:N/A
Water:<1 mg/mL
Ethanol: N/A
Solubility (In Vivo)

Chemical Name:1,4-Thiazepine-4(5H)-acetic acid, 6-((1-(ethoxycarbonyl)-3-phenylpropyl)amino)tetrahydro-5-oxo-2-(2-thienyl)-, (2S-(2alpha,6beta(R*)))-

InChi Key:FIQOFIRCTOWDOW-WSTRIDTPSA-N

InChi Code:InChI=1S/C23H28N2O5S2/c1-2-30-23(29)17(11-10-16-7-4-3-5-8-16)24-18-15-32-20(19-9-6-12-31-19)13-25(22(18)28)14-21(26)27/h3-9,12,17-18,20,24H,2,10-11,13-15H2,1H3,(H,26,27)/t17?,18-,20-/m0/s1

SMILES Code:O=C(O)CN1C[C@@H](C2=CC=CS2)SC[C@H](NC(C(OCC)=O)CCC3=CC=CC=C3)C1=O

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.0982 mL 10.4908 mL 20.9815 mL
5 mM 0.4196 mL 2.0982 mL 4.1963 mL
10 mM 0.2098 mL 1.0491 mL 2.0982 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
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