Ruilong Li et al. published their research in Polymer Science, Series A: Polymer Physics in 2021 | CAS: 6683-19-8

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Application of 6683-19-8

Preparation and Characterization of Polyoxymethlene/Thermoplastic Polyamide Elastomer Blends Compatibilized by Maleic Anhydride Grafted ABS Copolymer was written by Ruilong Li;Fang, Wei;Fan, Xiaodong;Jin, Zhengwei;Zhou, Tao. And the article was included in Polymer Science, Series A: Polymer Physics in 2021.Application of 6683-19-8 This article mentions the following:

Polyoxymethylene/thermoplastic polyamide elastomer composites were prepared by using maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer as interfacial compatibilizer via melt extrusion. The compatibility and the properties of blends were studied by the mech. testing and various phys. chem. methods. The notched impact strength and elongation at break of blends were increased significantly after adding of compatibilizer. Simultaneously, the phase structure and crystal shape of the blends were changed. Finally, the elastomer particles were more uniform, and more amorphous regions were produced in the blends. In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Application of 6683-19-8).

2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Application of 6683-19-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics