Description

3-Mercapto-1,2-Propanediol CAS NO 96-27-5 is a versatile sulfur-containing diol, also known as thioglycerol, valued for its dual functional groups that enable its use as a reducing agent, stabilizer, and chemical intermediate. Its unique structure makes it a critical component in formulations requiring precise control of oxidation states and polymer cross-linking. This compound is essential for manufacturers in the pharmaceutical, cosmetic, and polymer industries seeking reliable performance in sensitive applications.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and as a stabilizing agent in injectable formulations.
• Cosmetic & Personal Care: Acts as a reducing agent in permanent wave solutions (hair perms) and a stabilizer in depilatory creams.
• Polymer & Resin Modification: Serves as a chain transfer agent (CTA) in radical polymerizations and a cross-linking agent for epoxy resins.
• Biochemical Research: Utilized as a thiol-protecting group reagent in peptide synthesis and protein studies.
• Adhesive & Sealant Formulations: Functions as an antioxidant and viscosity modifier to enhance product shelf-life and performance.
• Electroplating Solutions: Employed as an additive in electroplating baths to improve brightness and uniformity of metal deposits.

Basic Information

Product Name	3-Mercapto-1,2-Propanediol
CAS No.	96-27-5
Molecular Formula	C3H8O2S
Molecular Weight	108.16 g/mol
Synonyms	Thioglycerol; 1-Thioglycerol; 3-Mercaptopropane-1,2-diol; α-Monothioglycerol; 3-Thio-1,2-propanediol; 3-Sulfanylpropane-1,2-diol; Glycerol 3-mercaptoethyl ether (related); Mercaptopropanediol
EINECS	202-495-0

Quality Control

Our 3-Mercapto-1,2-Propanediol is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation, to ensure it meets exacting standards for purity and consistency. Certificates of Analysis (COA) documenting full specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. This product is hygroscopic (moisture-sensitive) and easily oxidized; for long-term storage, consider using under an inert atmosphere such as nitrogen. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.520 - 1.525
Specific Gravity (20°C)	1.240 - 1.260

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.