4265-58-1

4265-58-1 - Names and Identifiers

Name	2,2'-[propane-2,2-diylbis(thio)]diacetic acid
Synonyms	TK-COOH 2,2'-[propane-2,2-diylbis(thio)]diacetic acid Acetic acid, 2,2'-[(1-methylethylidene)bis(thio)]bis- 2-[2-(carboxymethylsulfanyl)propan-2-ylsulfanyl]acetic acid
CAS	4265-58-1

4265-58-1 - Physico-chemical Properties

Molecular Formula	C7H12O4S2
Molar Mass	224.3
Density	1.390±0.06 g/cm3(Predicted)
Melting Point	130-132 °C
Boling Point	130-131 °C(Press: 0.1 Torr)
pKa	3.39±0.10(Predicted)
Storage Condition	2-8°C

4265-58-1 - Introduction

2,2 '-[propane-2,2-diylbis(thio)]diacetic acid is an organic compound with the chemical formula C10H16O4S2. It is sometimes referred to as PDTDA.

The following is the nature, use, formulation and safety information of 2,2 '-[propane-2,2-diylbis(thio)]diacetic acid:

Nature:
-Appearance: 2,2 '-[propane-2,2-diylbis(thio)]diacetic acid is a white crystalline solid.
-Solubility: It is soluble in water and some organic solvents, such as ethanol and chloroform.
-Melting point: The melting point of 2,2 '-[propane-2,2-diylbis(thio)]diacetic acid is about 142-148°C.

Use:
2,2 '-[propane-2,2-diylbis(thio)]diacetic acid is mainly used as dye and dye intermediate. It is often used in pigments and inks as a metal ion complexing agent, which can improve the stability and oxidation resistance of pigments. In addition, it can also be used to synthesize other organic compounds.

Method:
The preparation of 2,2 '-[propane-2,2-diylbis(thio)]diacetic acid is usually carried out by carbon disulfide and 1 under mild reaction conditions, substitution reactions of 3-dihalopropanes (e. G., 1,3-dibromopropane). In this process, carbon disulfide reacts with 1,3-dihalopropane to form an active intermediate, which then reacts with sodium acetate to form 2,2 '-[propane-2,2-diylbis(thio)]diacetic acid.

Safety Information:
- 2,2 '-[propane-2,2-diylbis(thio)]diacetic acid is relatively stable, but it will produce sulfur smoke under high temperature, spark or open flame. Therefore, care should be taken to avoid contact with heat sources during use or storage.
-It is a corrosive substance that may cause irritation to the eyes, skin and respiratory system. During operation, appropriate protective measures should be taken, such as wearing safety glasses, protective gloves and protective masks, so that they do not touch the skin and mucous membranes. In case of accidental contact, rinse immediately with plenty of water and seek medical assistance.

Last Update：2024-04-10 22:29:15