4731-97-9 Usage
Molecular structure
A molecule consisting of two phenol groups connected by a carbon-carbon bond
Appearance
Colorless to white crystalline solid
Solubility
Soluble in organic solvents such as ethanol, acetone, and diethyl ether
Melting point
155-156°C
Boiling point
Decomposes before reaching a boiling point
Density
1.164 g/cm3
Production
Synthetically produced through the reaction of phenol and acetone
Applications
Widely used in the production of plastic products (e.g., polycarbonate plastics) and epoxy resins, which are utilized in various industries, including food packaging, dental sealants, and thermal paper receipts
Leaching
Potential to leach into food and beverages from containers and packaging
Health risks
Linked to adverse effects on the reproductive and developmental systems, as well as an increased risk of certain cancers
Regulatory actions
Many manufacturers and governments have taken steps to limit or ban the use of bisphenol A in various applications
Alternatives
Ongoing research and development to find safer alternatives for its widespread use
Check Digit Verification of cas no
The CAS Registry Mumber 4731-97-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,3 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4731-97:
(6*4)+(5*7)+(4*3)+(3*1)+(2*9)+(1*7)=99
99 % 10 = 9
So 4731-97-9 is a valid CAS Registry Number.
4731-97-9Relevant articles and documents
A new cascade radical reaction for the synthesis of biaryls and triaryls from benzyl iodoaryl ethers
Harrowven, David C.,Nunn, Michael I.T.,Newman, Nicola A.,Fenwick, David R.
, p. 961 - 964 (2007/10/03)
The paper describes a new method of synthesizing biaryls and triaryls through an intramolecular ipso-substitution reaction initiated by the addition of an aryl radical to a benzyl ether. A tandem variant of the reaction has also been demonstrated. A short synthesis of isoaucuparin 27, a natural product found in the sapwood tissue of Sorbus aucuparia, is also described.