83791-04-2

Basic information

• Product Name: Pentanoic acid, 4-hydroxyphenyl ester
• CAS NO: 83791-04-2
• Molecular Formula: C11H14O3
• Molecular Weight: 194.23
• Mol File: 83791-04-2.mol

Chemical Properties

• CAS DataBase Reference: Pentanoic acid, 4-hydroxyphenyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Pentanoic acid, 4-hydroxyphenyl ester(83791-04-2)
• EPA Substance Registry System: Pentanoic acid, 4-hydroxyphenyl ester(83791-04-2)

Safety Data

• Hazardous Substances Data: 83791-04-2(Hazardous Substances Data)

Upstream product

• 638-29-9 n-valeryl chloride 
• 103-16-2 4-Benzyloxyphenol 
• 111131-16-9 Pentanoic acid 4-benzyloxy-phenyl ester 

Downstream Products

• 111131-27-2 4-n-pentanoyloxyphenyl 4-n-decyloxybenzoate 
• 111131-01-2 4-n-pentanoyloxyphenyl 4-n-dodecyloxybenzoate 

Relevant articles and documents

THE EFFECT OF CARBONYL CONTAINING SUBSTITUENTS IN THE TERMINAL CHAINS ON MESOMORPHIC PROPERTIES IN AROMATIC ESTERS AND THIOESTERS, 2. ACYLOXY GROUPS ON THE PHENOLIC END

The effect of replacing an alkoxy (Y=OR') with acyloxy (Y=OCOR') group on the phenolic end of the esters: on their mesomorphic properties has been studied.These esters were prepared by esterification of 4-acyloxyphenols with the appropriate acid chloride.The phenols were synthesized by acylation of 4-benzyloxyphenol with either an aliphatic acid or acid chloride followed by catalytic hydrogenolysis of the benzyl group.A comparison of the melting and clearing temperatures of these acyloxy esters with the corresponding known alkoxy ones showed small increases in both these temperatures for the acyloxy esters.The same types of mesophases (N, SA, SC, SB) were observed in both series, but the SB was more favored when Y=OCOR'.The SC phase was found to occur in the acyloxy series at chain lengths beyond which it disappeared in the alkoxy series.Comparisons were also made with the mesomorphic properties previously reported for the correponding alkyl and α-keto esters.Some correlation was observed between increasing dipole moments of these substituents and increasing transition temperatures but not in the types of mesophases observed.Fewer mesophases were found when the alkyl chain was attached to the benzene ring through a carbon atom than through an oxygen atom.

Topical skin depigmenting composition

A stable topical skin depigmenting composition having no irritant action to the skin which comprises an active ingredient a fatty acid ester of hydroquinone of the formula: STR1 wherein R1 and R2 are the same or different, each being hydrogen or a straight or branched, saturated or unsaturated aliphatic hydrocarbon radical having 1 to 20 carbon atoms, provided that at least one of R1 and R2 is the hydrocarbon radical and one or more conventional ingredients suitable for a topical preparation. A method of depigmentation of the skin using the ester of the formula [I] is also disclosed.