3837. Ethylparaben

Nomenclature

CAS number: 120-47-8
4-Hydroxybenzoic acid ethyl ester; ethyl p-hydroxybenzoate; Nipagin A; Ethyl Parasept (Tenneco); Solbrol A.
C9H10O3; mol wt 166.17.
C 65.05%, H 6.07%, O 28.88%.

Description and references

Prepd by esterification of p-hydroxybenzoic acid: Cavill, Vincent, J. Soc. Chem. Ind. London 66, 175 (1947).

Chemical structure

Properties

Crystals, mp 116°. bp 297-298° (decompn). Freely sol in alcohol, ether. Soly in water at 20°: 0.070% w/w; at 25°: 0.075% w/w.

Use

Preservative for pharmaceuticals.