24362-98-9 Usage
Description
4,4'-Hexylidenebisphenol, also known as Bisphenol S, is a chemical compound extensively utilized in the manufacturing of polycarbonate plastics and epoxy resins. It is frequently encountered in everyday items such as food and beverage containers, dental sealants, and thermal paper receipts. Despite its widespread use, 4,4'-hexylidenebisphenol has been identified as an endocrine disruptor, which may have adverse effects on hormone function and has been associated with a range of health issues, including reproductive and developmental problems, cancer, and metabolic disorders. This has led to ongoing discussions and regulatory measures concerning its safety and appropriateness in consumer products.
Uses
Used in Plastics and Epoxy Resin Industry:
4,4'-Hexylidenebisphenol is used as a key component in the production of polycarbonate plastics and epoxy resins for its ability to enhance the durability and heat resistance of these materials. This makes it suitable for use in a variety of applications, including food and beverage containers, which require materials that can withstand high temperatures and resist breakage.
Used in Dental Sealants:
In the dental industry, 4,4'-hexylidenebisphenol is used as a component in dental sealants due to its adhesive properties and resistance to degradation, which helps protect teeth from decay and other oral health issues.
Used in Thermal Paper Receipts:
4,4'-Hexylidenebisphenol is utilized in the production of thermal paper receipts because of its role in the color development process when the paper is exposed to heat. This makes it an essential component in the creation of receipts for transactions at point-of-sale systems.
However, due to the potential health risks associated with 4,4'-hexylidenebisphenol, there is a growing interest in finding safer alternatives and implementing stricter regulations on its use in consumer products. This has led to increased research into the development of alternative materials and a heightened awareness of the need for caution when using chemicals that may have endocrine-disrupting properties.
Check Digit Verification of cas no
The CAS Registry Mumber 24362-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,3,6 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 24362-98:
(7*2)+(6*4)+(5*3)+(4*6)+(3*2)+(2*9)+(1*8)=109
109 % 10 = 9
So 24362-98-9 is a valid CAS Registry Number.
24362-98-9Relevant articles and documents
Metal cation-exchanged montmorillonite (Mn+-mont)-catalysed aromatic alkylation with aldehydes and ketones
Tateiwa, Jun-Ichi,Hayama, Ei,Nishimura, Takahiro,Uemura, Sakae
, p. 1923 - 1928 (2007/10/03)
The alkylation of aromatic compounds with aldehydes and ketones in the presence of a variety of metal cation-exchanged montmorillonites (Mn+-mont; Mn+ = Zr4+, Al3+, Fe3+, Zn2+, H+, Na+) has been investigated. Al3+- and Zr4+-Monts are revealed to be effective as catalysts, while no reaction takes place with Na+-mont. Al3+-Mont-catalysed alkylation of phenol with several aldehydes produces mainly or almost solely the corresponding gem-bis(hydroxyphenyl)alkanes (bisphenols) in good yields, while that with several ketones affords selectively the corresponding alkylphenols in moderate to good yields. The alkylation always occurs at the carbonyl carbon without any skeletal rearrangement and the kind of products depends much on the steric hindrance of an electrophilic intermediary carbocation. The alkylation of anisole, veratrole and p-cresol proceeds well, while that of toluene, benzene, chlorobenzene and nitrobenzene scarcely occurs.
