CAS 452-35-7|Ethoxzolamide
| Common Name | Ethoxzolamide | ||
|---|---|---|---|
| CAS Number | 452-35-7 | Molecular Weight | 258.31700 |
| Density | 1.47g/cm3 | Boiling Point | 464.9ºC at 760mmHg |
| Molecular Formula | C9H10N2O3S2 | Melting Point | 190-193ºC(lit.) |
| MSDS | ChineseUSA | Flash Point | 235ºC |
| Symbol | GHS07 | Signal Word | Warning |
Names
| Name | ethoxzolamide |
|---|---|
| Synonym | More Synonyms |
Ethoxzolamide BiologicalActivity
| Description | Ethoxzolamide is a carbonic anhydrase inhibitor with Ki of 1 nM. |
|---|---|
| Related Catalog | Signaling Pathways >>Metabolic Enzyme/Protease >>Carbonic AnhydraseResearch Areas >>Inflammation/ImmunologyResearch Areas >>Infection |
| Target | Ki: 1 nM (carbonic anhydrase)[1] |
| In Vitro | Ethoxzolamide (ETZ) treatment causes >90% inhibition of reporter GFP fluorescence in infected macrophages. Moreover, in a 9-day macrophage survival assay, Ethoxzolamide (ETZ) treatment significantly inhibits the ability of M. tuberculosis to grow intracellularly[2]. |
| In Vivo | It is discovered that the lipid-soluble ethoxzolamide is converted in vivo to a water-soluble metabolite, while retaining high activity againstt the enzyme. At the minimal dose for maximal effect (4 mg/kg i.v. at 45 min) the IOP lowering is 4.2 mmHg, the concentration in anterior uvea is 2.5 pmol/kg, and the fractional inhibition of the enzyme (i) is 0.9995. The effect declines rapidly, attributable to the very short half-life of drug in plasma, leading to depletion of free drug in the anterior uvea and other tissues[1]. Ethoxzolamide (ETZ) strongly downregulates GFP reporter fluorescence in mouse lungs, with 3-fold inhibition of GFP signal compare to that in the mock-treating control. There is a significant reduction of bacterial survival in the lungs of ETZ-treating mice compare to the mock-treating control[2]. |
| Cell Assay | BMDMs are treated with 80 μM Ethoxzolamide (ETZ) or an equivalent volume of DMSO every 2 days for 9 days total. At days 3, 6, and 9, intracellular bacteria are quantified by lysing macrophage monolayers and performing serial dilution plating of lysates on 7H10 agar. For fluorescence microscopy experiments, macrophages are seeded on glass coverslips before infection with M. tuberculosis CDC1551. Samples are treated every 2 days with 100 μM Ethoxzolamide (ETZ) or an equal volume of DMSO for 9 days[2]. |
| Animal Admin | Rats (male, 300–325 g) are randomly selected into 2 groups (n=6 each group) and Ethoxzolamide (EZ) is administered at a dose of 0.18 mg/kg (in PEG 300: ethanol, 1:1) via i.v. injection through the tail vein. Blood samples (about 50-100 µL) are collected in heparinizing tubes at 0, 15, 30, 60, 120, 180, 240, 360, 540, and 1440 min post-injection, via tail snip with isoflurane as anesthetic. Plasma samples are prepared and stored at -80 °C until analysis. To study the distribution in brain, rats in group 1 are scarified at 6 hours and rats in group 2 are scarified at 24 hours to collect the brain tissues. Those blood samples from group 2 are analyzed to generated PK profile[3]. |
| References | [1]. Maren TH, et al. Relations among IOP reduction, ocular disposition and pharmacology of the carbonic anhydrase inhibitor ethoxzolamide. Exp Eye Res. 1992 Jul;55(1):73-9. [2]. Benjamin K. Johnson, et al. The Carbonic Anhydrase Inhibitor Ethoxzolamide Inhibits theMycobacterium tuberculosis PhoPR Regulon and Esx-1 Secretion and Attenuates Virulence. Antimicrob Agents Chemother. 2015 Aug; 59(8): 4436–4445. [3]. Song Gao, et al. Development and validation of an UPLC-MS/MS method for the quantification of ethoxzolamide in plasma and bioequivalent buffers: Applications to absorption, brain distribution, and pharmacokinetic studies. J Chromatogr B Analyt Technol Biomed Life Sci. 2015 Apr 1; 0: 54–59. |
Chemical & Physical Properties
| Density | 1.47g/cm3 |
|---|---|
| Boiling Point | 464.9ºC at 760mmHg |
| Melting Point | 190-193ºC(lit.) |
| Molecular Formula | C9H10N2O3S2 |
| Molecular Weight | 258.31700 |
| Flash Point | 235ºC |
| Exact Mass | 258.01300 |
| PSA | 118.90000 |
| LogP | 3.12350 |
| Vapour Pressure | 8.05E-09mmHg at 25°C |
| Index of Refraction | 1.644 |
| InChIKey | OUZWUKMCLIBBOG-UHFFFAOYSA-N |
| SMILES | CCOc1ccc2nc(S(N)(=O)=O)sc2c1 |
| Storage condition | 2-8℃ |
Toxicological Information
CHEMICAL IDENTIFICATION |
ACUTE TOXICITY DATA - TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- DOSE :
- 3300 mg/kg
- SEX/DURATION :
- female 1-22 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Effects on Embryo or Fetus - fetal death Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
- REFERENCE :
- TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 1,51,1968
Safety Information
| Symbol | GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H315-H319-H335 |
| Precautionary Statements | P261-P305 + P351 + P338 |
| Personal Protective Equipment | dust mask type N95 (US);Eyeshields;Gloves |
| Hazard Codes | Xi: Irritant; |
| Risk Phrases | R36/37/38 |
| Safety Phrases | 26 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| RTECS | DL6390000 |
| HS Code | 2935009090 |
Customs
| HS Code | 2935009090 |
|---|---|
| Summary | 2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0% |
Articles35
More Articles| Transport activity of the sodium bicarbonate cotransporter NBCe1 is enhanced by different isoforms of carbonic anhydrase. PLoS ONE 6(11) , e27167, (2011) Transport metabolons have been discussed between carbonic anhydrase II (CAII) and several membrane transporters. We have now studied different CA isoforms, expressed in Xenopus oocytes alone and toget... | |
| Reversed electrogenic sodium bicarbonate cotransporter 1 is the major acid loader during recovery from cytosolic alkalosis in mouse cortical astrocytes. J. Physiol. 593 , 3533-47, (2015) The regulation of H(+) i from cytosolic alkalosis has generally been attributed to the activity of Cl(-) -coupled acid loaders/base extruders in most cell types, including brain cells. The present stu... | |
| Functional interaction between bicarbonate transporters and carbonic anhydrase modulates lactate uptake into mouse cardiomyocytes. Pflugers Arch. 467 , 1469-80, (2015) Blood-derived lactate is a precious energy substrate for the heart muscle. Lactate is transported into cardiomyocytes via monocarboxylate transporters (MCTs) together with H(+), which couples lactate ... |
Synonyms
| Ethamide |
| 6-ethoxy-1,3-benzothiazole-2-sulfonamide |
| Glaucotensil |
| Ethoxyzolamide |
| Ethoxazolamide |
| 2-Benzothiazolesulfonamide,6-ethoxy |
| EINECS 207-199-5 |
| MFCD00057089 |
| Etoxzolamide |
| 6-Ethoxy-2-benzothiazolesulfonamide |
| Cardrase |
| Diuretic C |
| 6-ethoxybenzothiazole-2-sulphonamide |
