IUPAC Name: 2,5-Dihydroxybenzenesulfonic acid; N-ethylethanamine 
Molecular Formula: C₁₀H₁₇NO₅S
Molecular Weight: 263.34g/mol
EINECS: 220-090-7
Melting Point: 127°C-131°C
Boiling Point: 496.4 °C at 760 mmHg
Flash Point: 254 °C
Solubility: easily soluble in water, soluble in ethanol, slightly soluble in acetone, insoluble in chloroform and ether
Appearance: white crystals or crystalline powder
Freely Rotating Bonds: 3 
Polar Surface Area: 70.21 Å² 
Polarizability: 10^-24 cm³ 
Vapour Pressure: 1.13E-10 mmHg at 25°C  
Classification Code: Coagulants; Drug / Therapeutic Agent; Hematologic Agents; Hemostatic; Hemostatics; Mutation data
   The chemical synonyms of Ethamsylate (CAS NO.2624-44-4)  are 1-Hydroxy-4-oxo-2,5-cyclohexadiene-1-sulfonicacidcompd.withdiethylamine ; 2,5-Dihydroxy-benzenesulfonicacicompd.withdiethylamine ; 2,5-Dihydroxy-benzenesulfonicacicompd.withn-ethylethanamine(1:1) ; 2,5-Dihydroxybenzenesulfonicacidcompd.withn-ethylethanamine ; 2,5-DihydroxybenzenesulfonicacidcompdwithN-ethylethanamine ; Aglumin ; Altodor ; Ciclonamina .The molecular structure of Ethamsylate (2624-44-4) is .

 Ethamsylate (CAS NO.2624-44-4) is used as the prevention and for the treatment of pre-operative bleeding.

Reported in EPA TSCA Inventory.

Moderately toxic by intravenous route. Mutation data reported. When heated to decomposition it emits very toxic fumes of SO_x, NH₃, and NO_x. See also SULFONATES and AMINES.

A simple and sensitive kinetic method has been developed for the determination of ethamsylate (ESL) in its pharmaceutical preparations. The method is based upon oxidation of ESL with 3-methyl-2-benzothiazolinone hydrazone hydrochloride in presence of cerium (IV) ammonium sulfate at room temperature for 20 min. The absorbance of the reaction product is measured at 514 nm. The absorbance-concentration plot was rectilinear over the range of 4-30 microg/mL (r = 0.9999). The lower detection limit was 0.267 microl/mL (9.110 x 10(-6) M) and the lower quantitation limit was 0.808 microg/mL. The different experimental parameters affecting the development and stability of the reaction product were studied and optimized. The proposed method was applied to the determination of ESL in formulations, and the results obtained were in good agreement with those obtained using a reference method. The proposed method was also used for the in vitro detection of ESL in spiked human plasma at its therapeutic concentration level.