Hydroxyphenoxy propionic acid

Hydroxyphenoxy propionic acid (CAS 94050-90-5), commercially identified by the abbreviation D-HPPA, is a chiral phenoxypropionic acid derivative used as a building block in pharmaceutical synthesis and specialty formulation.

Where is Hydroxyphenoxy propionic acid used?

• Pharmaceutical manufacturing: key intermediate in synthesis
• Synthesis of optically active APIs requiring a resolved chiral center from the outset
• Personal care: incorporated into stabilizer systems
• Topical and cosmetic preparations: UV-stabilizing properties for shelf stability under light exposure
• Research pipelines target biocidal or preservative actives derived from hydroxyphenoxy scaffolds.

Good to know: Its defined stereochemistry makes it a controlled starting material where enantiomeric purity directly affects downstream product performance. Pharmaceutical-grade specifications with documented enantiomeric excess are the critical quality parameter for procurement in regulated synthesis workflows.

Commercial specifications

• Packaging ranges from laboratory-scale to kilogram lots