Nomenclature
CAS number: 87-18-3
2-Hydroxybenzoic acid 4-(1,1-dimethylethyl)phenyl ester; salicylic acid
p-tert-butylphenyl ester; TBS.
C
17H
18O
3; mol wt 270.32.
C 75.53%, H 6.71%, O 17.76%.
Description and references
Prepd from salicylic acid and p-tert-butylphenol in the presence of POCl3: Stoesser, Sommerfield, US 2606920 (1952 to Dow).
Properties
Crystals, slight odor resembling that of salol, mp 62-64°. Maximum light
absorption at 290-330 nm. Soly (w/w): in water <0.1%; abs ethanol
79%; ethyl acetate 153%; methyl ethyl ketone 197%; toluene 158%; Stoddard
solvent 39%.Use
Light absorber in plastic food wrappings.