Hydroquinone monosulfate

Hydroquinone monosulfate (CAS 17438-29-8), also referred to as quinol sulfate, is a sulfate ester derivative of hydroquinone used as a stabilizing intermediate and antioxidant precursor in specialty chemical synthesis.

Where is Hydroquinone monosulfate used?

• Pharmaceutical manufacturing: synthetic intermediate in the preparation of hydroquinone-based active ingredients where controlled oxidation potential is required
• Cosmetic formulators: skin-tone-modulating preparations where a stabilized hydroquinone source is preferred over the free diol form
• Biotechnology and life sciences: biochemical assay development and enzyme substrate research where precise redox behavior must be maintained
• It also supports pH-buffering roles in specialty formulations requiring antioxidant activity alongside acid-base regulation.

Good to know: Functions primarily as a controlled-release or masked form of hydroquinone, enabling formulators to work with reduced reactivity while retaining the core functional activity of the parent compound.

Commercial specifications

• Pharmaceutical-grade and research-grade specifications with high purity levels
• Packaging ranges from small quantities for R&D use to bulk quantities for industrial-scale synthesis