1-Butanethiol

Product Overview

1‑Butanethiol CAS 109‑79‑5 Butyl Mercaptan FEMA 3478 Savory Food Flavor Raw Material

Basic Chemical Info

• Molecular Weight: 90.19
• SMILES: CCCCS
• LogP: 2.28
• HS Code: 2930909090

Appearance & Color

• Color: Colorless clear liquid; may turn pale yellow upon long‑term air exposure due to oxidation
• Odor: Very powerful pungent sulfur‑like odor; skunk‑like raw smell. At extreme dilution, it presents beef, onion, garlic, egg and cheesy savory notes
• Odor Threshold: Extremely low, ppb level
• Physical state: Liquid at 25℃

Chemical‑Physical Properties

• Boiling Point: 98℃ (760 mmHg)
• Melting Point: −116℃
• Density: 0.842 g/mL @25℃
• Refractive Index: 1.443 @20℃
• Flash Point: 2℃ (CC), highly flammable
• Solubility: Slightly soluble in water; miscible with ethanol, propylene glycol and oils
• Stability: Air‑sensitive, thiol group easy to be oxidized. Incompatible with strong oxidants, strong bases and alkali metals. Keep away from heat and open flame
• Commercial Purity: 98% min (flavor grade)
• Storage Condition: Sealed, cool & dark environment, inert gas sealing recommended. Storage temperature below 30℃
• Shelf‑life: 12 months under proper sealed storage

Applications

1. Food flavoring: Savory flavor compound for beef, cheese, boiled egg, onion, garlic, meat soup base and snack seasonings
2. Function: Provides typical sulfur‑rich savory, meaty and onion‑garlic character for savory systems, used in trace amount
3. Recommended Dosage: 0.002‑0.05 ppm in final finished food; 10‑100 ppm in flavor compound

Product Specifications

Why Choose Taima Bio

Taima Bio supplies specialty ingredients with defined chemical specifications, full documentation (COA, TDS, MSDS), and reliable international supply. Our products serve food, beverage, confectionery, and flavor formulation customers worldwide, with flexible quantities from laboratory evaluation to commercial-scale packaging.