Ethanearsonic Acid

Title: Ethanearsonic Acid
CAS Registry Number: 507-32-4
CAS Name: Ethylarsonic acid
Additional Names: ethylarsinic acid
Molecular Formula: C2H7AsO3
Molecular Weight: 154.00
Percent Composition: C 15.60%, H 4.58%, As 48.65%, O 31.17%
Line Formula: C2H5AsO(OH)2
Literature References: Prepd from potassium arsenite and ethyl iodide: Dehn, Am. Chem. J. 33, 131 (1905); from sodium arsenite and ethyl bromide: Quick, Adams, J. Am. Chem. Soc. 44, 810 (1922).
Properties: Needles from alc, mp 99.5°. 70 g dissolve in 100 g water at 27°; 112 g dissolve in 100 g water at 40°; 39.4 g dissolve in 100 g of 95% alcohol at 25°.
Melting point: mp 99.5°
Derivative Type: Disodium salt
CAS Registry Number: 5982-55-8
Trademarks: Mon-Arsone
Molecular Formula: C2H5AsNa2O3
Molecular Weight: 197.96
Percent Composition: C 12.13%, H 2.55%, As 37.85%, Na 23.23%, O 24.25%
Properties: Minute hygroscopic crystals, very sol in water.
Therap-Cat: Formerly as antisyphilitic.
Keywords: Antisyphilitic.
Status: This monograph has been retired and is no longer subject to revision or update.
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