Quinine sulfate

Quinine sulfate (CAS 804-63-7) is the sulfate salt form of quinine, used primarily in pharmaceutical manufacturing and analytical research. Also marketed as quinine sulphate.

Where is Quinine sulfate used?

• Pharmaceutical manufacturing: active ingredient in oral dosage forms targeting nocturnal leg cramps and malaria treatment in regulated markets
• Analytical and QC laboratories: fluorescence standard for calibrating spectrophotometers
• Validation of UV detection systems, given its well-characterized emission profile
• Food and beverage: bittering agent in tonic waters and carbonated drinks under FEMA 2977
• Biotechnology research: cell biology assays and reference compound in pharmacokinetic studies for drug development
• It is available as a white to off-white crystalline powder in both anhydrous and dihydrate forms.

Good to know: Precise dosing is required to meet regulatory bitterness thresholds in commercial beverage production. Standard grades include USP, BP, and Ph. Eur., supporting use in GMP-regulated pharmaceutical production; research and reagent-grade material is also available for laboratory and analytical applications.