Title: Docusate Calcium
CAS Registry Number: 128-49-4
CAS Name: Sulfobutanedioic acid 1,4-bis(2-ethylhexyl)ester calcium salt
Additional Names: bis[2-ethylhexyl]calcium sulfosuccinate; calcium dioctyl sulfosuccinate; dioctyl calcium sulfosuccinate
Trademarks: Surfak (HMR)
Molecular Formula: C40H74CaO14S2
Molecular Weight: 883.22
Percent Composition: C 54.40%, H 8.44%, Ca 4.54%, O 25.36%, S 7.26%
Literature References: Prepd from dioctyl sodium sulfosuccinate dissolved in isopropanol and from calcium chloride dissolved in methanol: Klotz, US 3035973 (1962 to Lloyd Brothers).
Properties: White precipitate. Sol in mineral and vegetable oils, liq polyethylene glycol. Practically insol in glycerol. Claimed to have greater surface-active wetting properties than the sodium salt.
NOTE: Ingredient of Doxidan (HMR) which also contains phenolphthalein.
Therap-Cat: Stool softener.