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Ethacrynic acid

CAS No.
58-54-8
Chemical Name:
Ethacrynic acid
Synonyms
ETACRYNIC ACID;edecrin;mingit;mk-595;reomax;uregit;edecril;otacril;endecril;edecrina
CBNumber:
CB8215310
Molecular Formula:
C13H12Cl2O4
Molecular Weight:
303.14
MDL Number:
MFCD00056693
MOL File:
58-54-8.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 03:52:49
Product description Number Pack Size Price
Etacrynic acid for system suitability European Pharmacopoeia (EP) Reference Standard Y0001263 10 mg $254
Ethacrynic acid ≥97% (HPLC) SML1083 10mg $48
Ethacrynic acid European Pharmacopoeia (EP) Reference Standard E1800000 100 mg $254
Ethacrynic acid United States Pharmacopeia (USP) Reference Standard 1256004 200mg $463
Ethacrynic Acid ≥98% 26299 10mg $49
More product size

Ethacrynic acid Properties

Melting point 125 °C
Boiling point 480.0±45.0 °C(Predicted)
Density 1.3562 (estimate)
storage temp. 2-8°C
solubility DMSO: soluble20mg/mL, clear
form powder
pka 3.50(at 25℃)
color white to beige
Water Solubility Soluble in ethanol, chloroform, ether, ammonia, carbonates, and methanol. Insoluble in water.
Merck 3717
InChI 1S/C13H12Cl2O4/c1-3-7(2)13(18)8-4-5-9(12(15)11(8)14)19-6-10(16)17/h4-5H,2-3,6H2,1H3,(H,16,17)
InChIKey AVOLMBLBETYQHX-UHFFFAOYSA-N
SMILES ClC1=C(Cl)C(C(C(CC)=C)=O)=CC=C1OCC(O)=O
CAS DataBase Reference 58-54-8(CAS DataBase Reference)
FDA UNII M5DP350VZV
NCI Drug Dictionary Edecrin
ATC code C03CC01
EPA Substance Registry System Ethacrynic acid (58-54-8)
UNSPSC Code 41116107
NACRES NA.77

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332-H315-H319-H335
Precautionary statements  P261-P280-P301+P312+P330-P305+P351+P338
Hazard Codes  Xn
Risk Statements  20/21/22-36/37/38
Safety Statements  26-36
WGK Germany  3
RTECS  AG6600000
HS Code  2918992090
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Hazardous Substances Data 58-54-8(Hazardous Substances Data)
Toxicity LD50 in mice (mg/kg): 176 i.v.; 627 orally (Peck)
NFPA 704
0
3 0

Ethacrynic acid price More Price(52)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich Y0001263 Etacrynic acid for system suitability European Pharmacopoeia (EP) Reference Standard 58-54-8 10 mg $254 2026-04-30 Buy
Sigma-Aldrich SML1083 Ethacrynic acid ≥97% (HPLC) 58-54-8 10mg $48 2026-04-30 Buy
Sigma-Aldrich E1800000 Ethacrynic acid European Pharmacopoeia (EP) Reference Standard 58-54-8 100 mg $254 2026-04-30 Buy
Sigma-Aldrich 1256004 Ethacrynic acid United States Pharmacopeia (USP) Reference Standard 58-54-8 200mg $463 2026-04-30 Buy
Cayman Chemical 26299 Ethacrynic Acid ≥98% 58-54-8 10mg $49 2026-04-30 Buy
Product number Packaging Price Buy
Y0001263 10 mg $254 Buy
SML1083 10mg $48 Buy
E1800000 100 mg $254 Buy
1256004 200mg $463 Buy
26299 10mg $49 Buy

Ethacrynic acid Chemical Properties,Uses,Production

Description

Ethacrynic acid is a loop diuretic with anticancer activity., It inhibits the Na-K-2Cl (NKCC) cotransporter in duck erythrocytes (IC50 = 0.18 mM) and ATP-dependent chloride uptake in rat renal plasma membrane vesicles when used at a concentration of 0.3 mM., Ethacrynic acid also inhibits glutathione S-transferase P1-1 (GSTP1-1) and GSTA3-3 (IC50s = 4.9 and ~0.4 μM, respectively), and inhibits Wnt/β-catenin signaling in a cell-based reporter assay. It is cytotoxic to primary chronic lymphocytic leukemia cells (IC50 = 8.56 μM), as well as MCF-7, MDA-MB-231, and 4T1 cancer cells (IC50s = 45.53, 39.64, and 25.23 μM, respectively). Ethacrynic acid (250 μg per day) increases tumor growth reduction induced by the EGFR family inhibitors afatinib (Item Nos. 11492 | 21567) or neratinib in a 4T1 murine breast cancer model. Formulations containing ethacrynic acid have been used in the treatment of edema.

Chemical Properties

White Solid

Originator

Hydromedin,MSD,W. Germany,1966

Uses

A diuretic used to treat high blood pressure and swelling caused by congestive heart failure, liver failure and kidney failure.

Uses

Ethacrynic acid is a powerful diuretic prescribed for edema associated with cardiac insufficiency, renal edema that does not respond to other diuretics, and edema of the brain and lungs.

Uses

Ethacrynic acid is used to inhibits symport of sodium, potassium, and chloride primarily in the ascending limb of Henle, but also in the proximal and distal tubules. This pharmacological action results in excretion of these ions, increased urinary output, and reduction in extracellular fluid. This compound has been classified as a loop or high ceiling diuretic.

Definition

ChEBI: An aromatic ether that is phenoxyacetic acid in which the phenyl ring is substituted by chlorines at positions 2 and 3, and by a 2-methylidenebutanoyl group at position 4. It is a loop diuretic used to treat high blood pressure resulting from diseases such as congestive heart failure, liver failure, and kidney failure. It is also a glutathione S-transferase (EC 2.5.1.18) inhibitor.

Manufacturing Process

Step A: Preparation of 2,3-Dichloro-4-Butyrylphenoxy Acid - The product is prepared using the following ingredients: 22.1 grams (0.1 mol) 2,3- dichlorophenoxyacetic acid; 21.3 grams (0.2 mol) n-butyryl chloride; and 53.3 grams (0.4 mol) powdered aluminum chloride.
The 2,3-dichlorophenoxyacetic acid and n-butyryl chloride are placed in the reaction vessel and stirred while the aluminum chloride is added portionwise over a 45-minute period. The mixture then is heated on the steam bath for 3 hours and allowed to cool to room temperature. The gummy product obtained is added to a mixture of 300 ml of crushed ice and 30 ml concentrated hydrochloric acid. The resulting mixture is extracted with ether and the extract evaporated at reduced pressure. The residue is suspended in boiling water and dissolved by addition of a minimum quantity of 40% sodium hydroxide. After treatment with decolorizing charcoal and filtering, the hot filtrate is made acid to Congo red paper and chilled in ice.
The oil that separates is extracted with ether, the extract dried over anhydrous sodium sulfate and then evaporated at reduced pressure. The residue is dissolved in boiling benzene (75 ml) treated with decolorizing charcoal, filtered, treated with boiling cyclohexane (275 milliliters) and cooled to give 22.3 grams of 2,3-dichloro-4-butyrylphenoxyacetic acid. After several recrystallizations from a mixture of benzene and cyclohexane, then from methyl cyclohexane, next from a mixture of acetic acid and water, and finally from methylcyclohexane, the product melts at 110° to 111°C (corr).
Step B: Preparation of 2,3-Dichloro-4-[2-(Dimethylaminomethyl) Butyryl]Phenoxyacetic Acid Hydrochloride - In a 100 ml round flask equipped with an outlet tube suitable for application of intermittent suction, an intimate mixture of 5.20 grams (0.0179 mol) 2,3-dichloro-4-butyrylphenoxyacetic acid; 0.63 gram (0.0209 mol) paraformaldehyde; 1.59 grams (0.0195 mol) dry dimethylamine hydrochloride; and 4 drops acetic acid is heated on the steam bath for about 1.5 hours during which period suction is applied for about 1 minute intervals five or six times. Upon cooling, a solid is obtained, The crude reaction product is triturated with ether to give 5.8 grams (85%) of 2.3- dichloro-4-[2-dimethylaminomethyl)butyryl]phenoxyacetic acid hydrochloride in the form of a white solid. After two recrystallizations from a mixture of methanol and ether, the product melts at 165° to 167°C.
Step C: Preparation of 2,3-Dichloro-4-(2-Methylenebutyryl) Phenoxyacetic Acid - The Mannich compound obtained as described above is treated with aqueous sodium bicarbonate to form 2,3-dichloro-4-(2- methylenebutyryl)phenoxyacetic acid, MP 115° to 118°C. Two recrystallizations from a mixture of benzene and cyclohexane give white solid material melting at 118.5° to 120.5°C.

brand name

Edecrin (Merck).

Therapeutic Function

Diuretic, Cardiotonic, Smooth muscle relaxant, Respiratory stimulant

General Description

White solid.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Ethacrynic acid may react vigorously with strong oxidizing agents. Can react exothermically with reducing agents (such as alkali metals and hydrides) to release gaseous hydrogen. May react exothermically with acids. Reacts exothermically with all bases both organic (for example, the amines) and inorganic.

Fire Hazard

Ethacrynic acid is probably combustible.

Biochem/physiol Actions

Ethacrynic acid is non sulfonamide loop diuretic that is used to treat high blood pressure and the swelling caused by diseases like congestive heart failure. Ethacrynic acid blocks sodium-potassium-chloride cotransport. Also, Ethacrynic acid potently inhibits glutathione S-transferase family members. Studies show that ethacrynic acid potently inhibits Tgase-2 (transglutaminase-2) dependent metastasis of cancer cells including lung and pancreatic cancers.

Mechanism of action

The mechanism of action of ethacrynic acid appears to be more complex than the simple addition of sulfhydryl groups of the enzyme to the drug molecule. When the double bond of ethacrynic acid is reduced, the resultant compound is still active, although the diuretic activity is diminished. The sulfhydryl groups of the enzyme would not be expected to add to the drug molecule in the absence of the α,β-unsaturated ketone.
These compounds are potent high-ceiling diuretics that resemble ethacrynic acid in their mechanism of action. The ethyl ester group represents a pro-drug that can be easily hydrolyzed to the free carboxyl group. As in ethacrynic acid, a 2,3-dichloro substitution is necessary. In addition, a para-hydroxyl group and an unsubstituted aminomethyl group on the benzene ring are highly beneficial. The carbonyl group can be replaced with an ether or sulfide group. These compounds have no ability to add the sulfhydryl groups of the kidney enzymes. The complete mechanism of action of these compounds remains in doubt.

Synthesis

Ethacrynic acida[2,3-dichloro-4-(2-methylenbutyryl)phenoxy]acetic acid (21.4.9), is synthesized from 2,3-dichlorophenoxyacetic acid. This is acylated with butyroyl chloride, forming 4-butyroyl-2,3-dichlorophenoxyacetic acid (21.4.7), which is further aminomethylated under Mannich reaction conditions using dimethylamine and formaldehyde. The resulting product (21.4.8) undergoes further thermal degredation, forming an unsaturated ketoneaethacrynic acid (21.4.9).

Synthesis_58-54-8

Veterinary Drugs and Treatments

Ethacrynic acid is a loop diuretic that shares the same indications as furosemide (congestive cardiomyopathy, pulmonary edema, hypercalcuric nephropathy, uremia, as adjunctive therapy in hyperkalemia and, occasionally, as an antihypertensive agent). Its use has been largely supplanted in the armamentarium by furosemide for these indications.
Ethacrynic acid may be useful in the treatment of nephrogenic diabetes insipidus as it may cause a paradoxical decrease in urine volume. Other uses include the adjunctive treatment of hypercalcemia and to increase the excretion of bromide in the treatment of bromide toxicity.

References

[1] YUKIKO KUNUGI . Ethacrynic Acid-Sensitive and ATP-Dependent Cl- Transport in the Rat Kidney[J]. Japanese journal of pharmacology, 1991, 57 2: Pages 167-174. DOI: 10.1254/jjp.57.167
[2] V MORRA. Fast gas chromatographic/mass spectrometric determination of diuretics and masking agents in human urine: Development and validation of a productive screening protocol for antidoping analysis.[J]. Journal of Chromatography A, 2006, 1135 2: 219-229. DOI: 10.1016/j.chroma.2006.09.034
[3] H W HAGEDORN  R S. Detection of diuretics in horse urine by GC/MS.[J]. Journal of analytical toxicology, 1992, 16 3: 194-198. DOI: 10.1093/jat/16.3.194
[4] H C PALFREY  S L. Inhibition of Na-K-2Cl cotransport and bumetanide binding by ethacrynic acid, its analogues, and adducts.[J]. American Journal of Physiology, 1993, 264 5 Pt 1: C1270-7. DOI: 10.1152/ajpcell.1993.264.5.c1270
[5] DESHENG LU. Ethacrynic acid exhibits selective toxicity to chronic lymphocytic leukemia cells by inhibition of the Wnt/beta-catenin pathway.[J]. PLoS ONE, 2009, 4 12: e8294. DOI: 10.1371/journal.pone.0008294
[6] BING LIU. Ethacrynic acid improves the antitumor effects of irreversible epidermal growth factor receptor tyrosine kinase inhibitors in breast cancer.[J]. Oncotarget, 2016: 58038-58050. DOI: 10.18632/oncotarget.10846
[7] YAMAN MUSDAL . FDA-approved drugs and other compounds tested as inhibitors of human glutathione transferase P1-1[J]. Chemico-Biological Interactions, 2013, 205 1: Pages 53-62. DOI: 10.1016/j.cbi.2013.06.003

50-00-0
1217-67-0
58-54-8
Synthesis of Ethacrynic acid from Formaldehyde and 4-BUTYRYL-2,3-DICHLOROPHENOXYACETICACID
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View Lastest Price from Ethacrynic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Ethacrynic acid pictures 2021-11-02 Ethacrynic acid
58-54-8
$127.00 2g 99% 50kg Baoji Guokang Healthchem co.,ltd

Ethacrynic acid Spectrum

crinuryl edecril edecrin edecrina endecril etacrinicacid etakrinicacid hidromedin hydromedin kyselina4-(2-(1-butenyl)karbonyl)-2,3-dichlorfenoxyoctova kyselinaethakrynova methylenebutyrylphenoxyaceticacid mingit mk-595 ETHACRYNIC ACID 98+% Ethacrynoc ACETICACID,(2,3-DICHLORO-4-(2-METHYLENEBUTYRYL)PHENOXY)- 2-[2,3-Dichloro-4-(2-methylidenebutanoyl)phenoxy]acetic acid 2,3-Dichloro-4-(2-ethyl-1-oxo-2-propenyl)-phenoxyacetic acid Ethacrynic Acid (200 mg) (2,3-dichloro-4-(2-methylene-1-oxobutyl)phenoxy)-aceticaci (2,3-dichloro-4-(2-methylene-1-oxobutyl)phenoxy)aceticacid (2,3-dichloro-4-(2-methylenebutyryl)phenoxy)-aceticaci (4-(2-methylenebutyryl)-2,3-dichlorophenoxy)aceticacid [2,3-Dichloro-4-(2-methylene-1-oxobutyl)phe-noxy]aceticacid 2-[2,3-Dichloro-4-(2-Methylene-1-oxobutyl)phenoxy]acetic Acid Crinuril NSC 624008 NSC 85791 2-[2,3-Dichloro-4-(2-Methylenebutanoyl)phenoxy]acetic acid Acetic acid,2-[2,3-dichloro-4-(2-Methylene-1-oxobutyl)phenoxy]- Etacrynic acid for system suitability [2,3-Dichloro-4-(2-ethylacryloyl)phenoxy]acetic acid Etacrynic acid (Edecrin) otacril reomax taladren uregit ETHACRYNIC ACID [2,3-DICHLORO-4-(2-METHYLENEBUTYRYL)PHENOXY]ACETIC ACID ETHACRYNIC ACID; ETACRINIC ACID; HYDROMEDIN; CRINURYL; MINGIT;MK-595; NSC 624008; NSC 85791; OTACRIL REOMAX; TALADREN Otacril Reomax Etacrynic acid for system suitability CRS Etacrynic acid CRS 2,3-Dichloro-4-(2-methylenebutanoyl)phenoxy]acetic acid Ethacrynic acid USP/EP/BP Ethacrynic Acid (1256004) Ethacrynic Acid 2-[2,3-Dichloro-4-(2-methylene-1-oxobutyl)phenoxy]acetic Acid Good for uric acid Ethacrynic acid, Glutathione S-transferase (GST) inhibitor Ethacrynic acid, 10 mM in DMSO ETHACRYNIC ACID USP ETACRYNIC ACID 58-54-8 C13H12Cl2O4 30314 EQ - EZ Analytical Standards