2-Mercaptoethanol

2-Mercaptoethanol

Chemical Name: 2-Mercaptoethanol

Also Known As: β-Mercaptoethanol, BME

Formula: C2H6OS | CAS No.: 60-24-2

Description

2-Mercaptoethanol is a clear to pale-yellow liquid with a strong, pungent sulfur odor. It is a thiol-based reducing agent widely used in biochemical, pharmaceutical, and industrial processes. Known for its strong nucleophilic and antioxidant properties, it is commonly used to prevent oxidation, break disulfide bonds, and maintain reducing conditions in chemical and biological systems.

Applications

• Protein denaturation and reduction in biochemical research

• Preventing disulfide bond formation in molecular biology

• Intermediate in pharmaceutical synthesis

• Reducing agent in polymer and resin modification

• Used in agricultural chemicals and fine chemical processing

• Antioxidant and stabilizer in chemical formulations

Technical Details

Appearance

Colorless to pale-yellow liquid

Molecular Weight

78.13 g/mol

Boiling Point

157 °C

Flash Point

68 °C

Density

1.115 g/cm3 at 20 °C

Solubility

Miscible with water, alcohols, and many organic solvents

Odor

Strong thiol (sulfur) odor

Stability

Stable under recommended storage conditions; oxidizes on air exposure

Packaging

• 1 L and 5 L plastic bottles

• 25 L HDPE drums

• 200 L HDPE drums

• Custom bulk packaging on request

Storage & Handling

• Store in cool, dry, well-ventilated area away from heat and ignition sources

• Keep container tightly sealed to prevent oxidation

• Avoid inhalation; strong odor and toxic vapors

• Use gloves, goggles, and proper lab ventilation

• Store away from oxidizing agents and acids

Note: 2-Mercaptoethanol is toxic and corrosive; handle with proper PPE and ventilation. Avoid skin contact and inhalation.