88790-52-7

Usage

Common uses

Plasticizer in the production of polymers and resins
Flexible PVC products such as toys, vinyl flooring, and wire and cable insulation

Benefits

Improves flexibility of plastic materials
Enhances durability of plastic materials
Increases thermal stability of plastic materials

Health and environmental concerns

Linked to reproductive and developmental toxicity in animal studies
Proper handling and disposal are important to minimize potential negative effects

Chemical structure

Contains a propanediol backbone with a 2-hexyl group and two 4-methylbenzenesulfonate groups

Molecular weight

Approximately 414.59 g/mol

Physical state

Likely a liquid or viscous substance at room temperature

Solubility

Soluble in organic solvents, such as ethanol and acetone

Stability

Stable under normal temperature and pressure conditions, but may decompose upon exposure to heat, flame, or strong oxidizing agents

Regulatory status

May be subject to regulations and restrictions depending on the jurisdiction and intended use

Safety precautions

Use personal protective equipment (PPE) when handling
Store in a cool, dry, and well-ventilated area, away from incompatible substances
Dispose of according to local, national, and international regulations for hazardous materials

Upstream product

• 21398-43-6 2-hexyl-1,3-propanediol 
• 103057-51-8 hypochlorous acid 4-methylbenzene sulfonic anhydride 
• 98-59-9 p-toluenesulfonyl chloride 
• 111-25-1 1-bromo-hexane 
• 5398-10-7 diethyl 2-hexylmalonate 

Downstream Products

• 104660-74-4 C₂₆H₃₆O₆S₂ 

Relevant academic research and scientific papers

Synthesis and Liquid Crystal Properties of Dimethylene Linked Compounds Incorporating the Cyclobutane or Spiroheptane Rings

The preparation of sixteen dimethylene linked compounds is described heptane ring>, and a comparison is made between the transition temperatures of these compounds and those of the corresponding esters.This comparison once again highlights the fact that the cyclobutane ring should be regarded, in terms of its ability to promote nematic thermal stability, as a "chain stiffener rather than as a ring system.A comparison is also made of the nematic thermal stabilities of the trans-cyclobutane and the spiroheptane systems and of the trans-cyclohexane and the spiroundecane systems.

Synthesis and liquid crystal properties of compounds incorporating cyclobutane, spiroheptane and dispirodecane rings

A number of esters of structure (I) incorporating the cyclobutane, spiroheptane, or dispirodecane rings has been prepared using a diethyl malonate synthesis.Strict comparison of the liquid crystal behaviour amongst the three classes containing a terminal cyano-substituent was not possible because both the cyclobutanes and dispirodecanes are mixtures of cis- and trans-isomers; the spiroheptanes are racemic systems.Using preparative hplc, it was however possible to isolate the pure cis- and trans-isomers of two of the cyano-substituted cyclobutane esters (I; R = alkyl, -X- = --, Y = CN).From the physical data and the results for the corresponding spiroheptane esters, conclusions regarding the effects of these ring systems on liquid crystal behaviour were obtained.The pure cis- and trans-isomers of the cyclobutane ester (I, R = C3H7, -X- = --, Y = CN) have been assessed for the trends in both order parameter and viscosity with temperature; the results support the idea that idea that the trans-cyclobutane ring adopts a more planar conformation at higher temperatures.Keywords: cyclobutane- and related spiro-systems, cis-/trans-isomerism, order parameter, briefringence, viscosity, structure/property relations.

LONG-ACTING CONTRACEPTIVE AGENTS: CYCLOPROPYL AND CYCLOBUTYL ESTERS OF NORETHISTERONE

Several esters of norethisterone (17α-ethynyl-17β-hydroxyestr-4-en-3-one) with carboxylic acids containing a cyclopropyl or cyclobutyl ring have been synthesized and the stereochemistries of the side-chains determined.