Title: Propylparaben
CAS Registry Number: 94-13-3
CAS Name: 4-Hydroxybenzoic acid propyl ester
Additional Names: propyl p-hydroxybenzoate
Trademarks: Nipasol M (Nipa); Solbrol P (Bayer); Propyl Parasept (Tenneco)
Molecular Formula: C10H12O3
Molecular Weight: 180.20
Percent Composition: C 66.65%, H 6.71%, O 26.64%
Literature References: Prepn: Stohmann, J. Prakt. Chem. 36, 368 (1887); L. Nobli, Giorn. Farm. Chim. 84, 168 (1935), C.A. 30, 34239 (1936). Review of safety assessment: M. G. Soni et al., Food Chem. Toxicol. 39, 513-532 (2002).
Properties: White crystals, mp 96-97°. Sol in 2000 parts water; freely sol in alcohol, ether; slightly sol in boiling water.
Melting point: mp 96-97°
Use: Pharmaceutic aid (antifungal). Antimicrobial preservative in foods and cosmetics. |