3-Mercapto-1,2-propanediol (CAS 96-27-5), also named 1-Thioglycerol or α-Monothioglycerol, is a colourless to pale yellow viscous hygroscopic liquid with slight sulfide odour. It contains one thiol group and two hydroxyl groups, featuring excellent water solubility and strong reducing property. It is widely applied in biochemistry, cosmetic raw materials, chemical synthesis and metal surface treatment. TNJ Chemical is the leading manufacturer and exporter since from 2001. We guarantee high quality, competitive price, stable supply, fast delivery and tech support etc. To find more, please contact sales@tnjchem.com

Chemical Name: 3-Mercapto-1,2-propanediol

Alias: 1-Thioglycerol, Monothioglycerol, α-Monothioglycerol

EINECS No.: 202-495-0

Molecular Formula: C₃H₈O₂S

MDL No.: MFCD00004879

Appearance Colourless to pale yellow viscous hygroscopic liquid

Odor Faint sulfurous smell

Density (25℃) 1.240–1.250 g/cm³

Refractive Index (25℃) 1.521–1.526

Flash Point 113℃

Solubility Miscible freely with water, alcohols; insoluble in aromatic hydrocarbons

pH (10% aqueous solution) 3.5–7.0

Used as reducing agent and antioxidant in biochemistry and cell culture medium; 

Key raw material for cosmetic formulations to stabilize active ingredients; 

Thiol functional monomer for organic synthesis; 

Metal rust inhibitor and surface treatment agent; 

Crosslinking agent for polymer and resin production.

Packing

25kg plastic drum / 200kg HDPE drum, or customized packaging as customer’s requirement.

Delivery & Storage

Store in tightly sealed container in cool, dry, well-ventilated warehouse. 

Keep away from air, oxidizing agents, heat and direct sunlight. Transport as hazardous goods UN2810 Class 6.1, avoid violent collision and leakage. 

Shelf life: 12 months under proper storage.