9332. 3,3′-Thiodipropionic Acid

Nomenclature

CAS number: 111-17-1
3,3′-Thiobis[propanoic acid]; β,β-thiodipropionic acid; thiodihydracrylic acid; diethyl sulfide 2,2′-dicarboxylic acid.
C6H10O4S; mol wt 178.21.
C 40.44%, H 5.66%, O 35.91%, S 17.99%.

Description and references

Prepn: GB 571628 (1945 to Am. Cyanamid); Gresham, Shaver, US 2449992 (1948 to B. F. Goodrich).

Chemical structure

Properties

Nacreous leaflets from hot water, mp 134°. pK (25°) 4.11. One gram dissolves in 26.9 ml water at 26°. Freely sol in hot water, alcohol, acetone.

Use

Antioxidant for soap products and polymers of ethylene. In plasticizers and lubricants. Proposed for edible fats, oils, other foods.