7-Ethoxyresorufin (Synonyms: 7ER, 7Ethoxyphenoxazone, Resorufin ethyl ether) |
| Katalog-Nr.GC13784 |
7-Ethoxyresorufin (Resorufinethylether) ist ein fluorometrisches Substrat und ein kompetitiver Inhibitor von Cytochrom P450, insbesondere CYP1A1.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 5725-91-7
Sample solution is provided at 25 µL, 10mM.
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Cytochrome P450, family 1, subfamily A, polypeptide 1 is a protein that is encoded by human CYP1A1 gene. The protein is a member of the cytochrome P450 superfamily of enzymes. CYP1A1 is involved in phase I xenobiotic and drug metabolism. CYP1A1 is inhibited by fluoroquinolones and macrolides and induced by aromatic hydrocarbons. 7-Ethoxyresorufin is a specific subtrate of CYP1A.
In vitro: 7-Ethoxyresorufin (2-10 microM), a substrate for cytochrome P450, which binds to the heme moiety of the enzyme, reduced responses to acetylcholine concentration-dependently but not the other agonists indicating an effect on nitric oxide synthesis although neither affected the conversion of L-arginine to L-citrulline [1].
In vivo: Activities of CYP1A (7-ethoxyresorufin) in the liver was determined for comparative purposes. In mice, LPS depressed CYP2A5 at low doses but not at doses that increased pro-inflammatory cytokines and NO serum levels, and depressed CYP1A activity. Blockade of proinflammatory cytokines extended down-regulation of CYP2A5 while not affecting LPS-induced depression of CYP1A [2].
Clinical trial: Cytochrome P-450 enzyme activities of 7-ethoxyresorufin O-deethylase (ERDE) was measured in human liver needle biopsy samples from smokers and non-smokers. ERDE activity was significantly elevated in the livers of cigarette smokers. No correlation was observed between plasma cotinine concentration and ERDE activity [3].
References:
[1] Oyekan AO, McGiff JC, Rosencrantz-Weiss P, Quilley J. Relaxant responses of rabbit aorta: influence of cytochrome P450 inhibitors. J Pharmacol Exp Ther. 1994 Jan;268(1):262-9.
[2] De-Oliveira AC, Poça KS, Totino PR, Paumgartten FJ. Modulation of cytochrome P450 2A5 activity by lipopolysaccharide: low-dose effects and non-monotonic dose-response relationship. PLoS One. 2015 Jan 30;10(1):e0117842.
[3] Pelkonen O, Pasanen M, Kuha H, Gachalyi B, Kairaluoma M, Sotaniemi EA, Park SS, Friedman FK, Gelboin HV. The effect of cigarette smoking on 7-ethoxyresorufin O-deethylase and other monooxygenase activities in human liver: analyses with monoclonal antibodies. Br J Clin Pharmacol. 1986 Aug;22(2):125-34.
| Cas No. | 5725-91-7 | SDF | |
| Überlieferungen | 7ER, 7Ethoxyphenoxazone, Resorufin ethyl ether | ||
| Chemical Name | 7-ethoxy-3H-phenoxazin-3-one | ||
| Canonical SMILES | CCOC1=CC2=C(N=C3C=CC(C=C3O2)=O)C=C1 | ||
| Formula | C14H11NO3 | M.Wt | 241.24 |
| Löslichkeit | DMF : 2 mg/mL (8.29 mM; ultrasonic and warming and heat to 60°C) | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 4.1452 mL | 20.7262 mL | 41.4525 mL |
| 5 mM | 0.829 mL | 4.1452 mL | 8.2905 mL |
| 10 mM | 0.4145 mL | 2.0726 mL | 4.1452 mL |
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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
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- Purity: >98.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 4 reference(s) in Google Scholar.)
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