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Thioglycerol

CAS Number
96-27-5
EC Number
202-495-0
Chemical Formula
C3H8O2S
Molecular Weight
108.16 g/mol

Description

Thioglycerol (CAS 96-27-5 ), also known as MTG, is a sulfur-containing diol used across pharmaceutical, cosmetic, and specialty chemical manufacturing. It functions primarily as a reducing agent and stabilizer. This chemical protects sensitive compounds from oxidative degradation during formulation and processing. In pharmaceutical manufacturing, it stabilizes active ingredients prone to oxidation, extending shelf life in injectable and topical formulations. Personal care formulators incorporate it into hair treatment products, where its thiol group participates in breaking and reforming disulfide bonds to reshape hair structure. It also acts as a humectant in cosmetic preparations. This helps finished products retain moisture and maintain texture over time. In specialty chemical synthesis, MTG serves as a cross-linking agent and intermediate for producing thioether compounds used in polymer and resin systems. Thioglycerol is supplied as a clear to pale yellow viscous liquid. Pharmaceutical-grade material is available to meet USP and BP specifications, while technical-grade material serves industrial synthesis applications. Packaging typically ranges from small laboratory quantities up to bulk drum supply for commercial-scale production. This ensures that manufacturers can source the exact volume required for their specific industrial or laboratory needs. Contact us for supply of Thioglycerol Request Quote

Other Names (Synonyms)

1-mercapto-2,3-propanediol | 3-mercaptopropane-1,2-diol | alpha-thiolglycerol | 3-mercapto-1,2-propanediol | 2,3-dihydroxypropanethiol | 1-thioglycerol | 1-thio-2,3-propanediol | 1-monothioglycerol | MTG

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point<25 °C
Boiling Point118 °C @ Press: 5 Torr
Density1.295 g/cm³
Flash Point>230 °F
Appearanceclear colorless to yellowish viscous solution
ColorClear colorless to yellow
OdorStench odour
Formliquid
Water Solubilityslightly soluble
Vapor Pressure<1 hPa (20 °C)
Refractive Indexn 20/D 1.527(lit.)
pH3.5-7.0
Log P-0.84 at 20℃

Safety & Handling

Danger
GHS06· ToxicGHS07· Irritant

Hazard Statements

H302Harmful if swallowed
H311Toxic in contact with skin
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H331Toxic if inhaled
H335May cause respiratory irritation

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P262Do not get in eyes, on skin, or on clothing.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P316Get emergency medical help immediately.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off immediately all contaminated clothing and wash it before reuse.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29309070
UN Number2810
ADR Class6.1
Packing GroupIII
Storage Class6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany)3