Description

Thiodiglycolic Acid is a versatile sulfur-containing dicarboxylic acid with the CAS number 505-73-7. It serves as a critical intermediate and building block in the synthesis of various high-value chemicals, offering unique reactivity due to its thioether and carboxyl functional groups. This compound is essential for manufacturers in the pharmaceutical, polymer, and specialty chemical sectors seeking to develop products with specific performance characteristics.

Application

• Pharmaceutical Intermediate: Key starting material for the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a thioether linkage.
• Polymer Modifier: Used in the production of specialty polymers and resins to introduce sulfur atoms, which can enhance properties like metal chelation or thermal stability.
• Chemical Synthesis: Acts as a bifunctional building block for creating complex molecules in agrochemicals, dyes, and other fine chemicals.
• Chelating Agent Precursor: Serves as a precursor in the manufacture of sulfur-based chelating agents used in water treatment and industrial cleaning formulations.
• Crosslinking Agent: Employed in the formulation of crosslinkers for specific adhesive and coating systems.
• Research & Development: A valuable reagent in organic chemistry research for exploring new synthetic pathways and material science applications.

Basic Information

Product Name	Thiodiglycolic Acid
CAS No.	505-73-7
Molecular Formula	C4H6O4S
Molecular Weight	150.15 g/mol
Synonyms	2,2'-Thiodiacetic Acid; Bis(carboxymethyl) Sulfide; Thiodiacetic Acid; Mercaptodiacetic Acid; TDGA; Diglycolic Acid Sulfide; Sulfanediyldiacetic Acid; (Carboxymethylthio)acetic Acid
EINECS	208-010-8

Quality Control

Our Thiodiglycolic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed-upon standards. We support our global clients with documentation relevant to their regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture, which may affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	128°C - 132°C
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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