4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol

C20H18O2

CAS1571-75-1
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
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Identification

CAS Number
1571-75-1
EC Number
433-130-5
UN Number
3077
Index Number
604-081-00-9
PubChem CID
623849

Physical-chemical properties

Molecular Formula
C20H18O2
Molar Mass
290.40 g/mol
IUPAC Name
4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol

Chemical Identifiers

InChI
InChI=1S/C20H18O2/c1-20(15-5-3-2-4-6-15,16-7-11-18(21)12-8-16)17-9-13-19(22)14-10-17/h2-14,21-22H,1H3
InChI Key
VOWWYDCFAISREI-UHFFFAOYSA-N

Overview

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol (CAS 1571-75-1) is an organic bisphenol compound with two hydroxyphenyl groups connected through a central ethyl bridge. This synthetic organic compound, also known by its EC number 433-130-5, belongs to the bisphenol family and features a molecular structure consisting of two para-hydroxyphenyl groups linked to a central carbon atom that also bears a phenyl substituent. With a molecular formula of C20H18O2 and a molecular weight of 290.4 g/mol, this compound exhibits characteristic properties typical of bisphenolic structures, including moderate solubility in organic solvents and the ability to participate in various chemical reactions through its phenolic hydroxyl groups. From a safety perspective, 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol is classified under ADR Class 9 (miscellaneous dangerous substances) and carries GHS09 pictogram indicating environmental hazards. The compound presents Aquatic Acute 1 and Aquatic Chronic 1 classifications, requiring careful handling to prevent environmental release and contamination of water systems. The "Warning" signal word indicates moderate hazard potential during industrial handling and processing. Industrial applications of this bisphenol compound include use as an intermediate in polymer synthesis, particularly in the production of specialty resins and engineering plastics. It also finds application in the manufacture of flame retardants and as a chemical building block for advanced materials requiring specific thermal and mechanical properties. Unlike simpler compounds such as copper(1+) thiocyanate, this bisphenol offers unique structural features that enable specialized polymer chemistry applications. OYSI maintains reliable supply chains for 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol to support European industrial customers requiring consistent quality and regulatory compliance.

Safety & Classification

Warning
Classification:

Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Transport (ADR)

UN Number3077
ADR Class9
Packing GroupIII
Tunnel Code-
Proper Shipping Name1,1-Bis(4-hydroxyphenyl)-1-phenylethan
Marine PollutantNo

Frequently Asked Questions

What is 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol?

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol is an organic chemical compound with the molecular formula C20H18O2 and CAS number 1571-75-1. This substance belongs to the phenol family and features a complex aromatic structure with multiple benzene rings and hydroxyl groups. With a molecular weight of 290.4 g/mol, it is classified as hazardous to the aquatic environment under GHS regulations, requiring careful handling and disposal procedures in industrial applications.

What are the physicochemical properties of 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol?

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol is a solid organic compound at room temperature with a molecular weight of 290.4 g/mol. The substance contains multiple aromatic rings with hydroxyl functional groups, which influence its solubility characteristics. As a phenolic compound, it typically exhibits limited water solubility but better solubility in organic solvents. The presence of hydroxyl groups contributes to its chemical reactivity and potential for hydrogen bonding interactions.

What is 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol used for?

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol is primarily used in industrial chemical synthesis and research applications. Its phenolic structure makes it valuable as an intermediate in the production of specialized polymers, resins, and pharmaceutical compounds. The compound may also serve as a building block in the manufacture of antioxidants, stabilizers, or other chemical additives. Its specific aromatic configuration provides unique properties that are exploited in various technical and research applications requiring phenolic chemistry.

How to handle 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol safely?

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol requires careful handling due to its aquatic toxicity classification. Workers should wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing to prevent skin and eye contact. Ensure adequate ventilation in work areas and avoid release to the environment. Handle the substance in controlled conditions away from heat sources and incompatible materials. Always follow good industrial hygiene practices and consult the safety data sheet for specific handling requirements.

How to store 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol correctly?

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol should be stored in tightly sealed containers in a cool, dry, and well-ventilated area away from direct sunlight and heat sources. Keep the substance away from oxidizing agents and strong bases that may react with phenolic compounds. Storage areas must be equipped with appropriate containment measures to prevent environmental release, given its aquatic toxicity classification. Ensure storage facilities comply with local chemical storage regulations and maintain proper inventory management systems.

What to do in case of contact with 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol?

In case of skin contact with 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for at least 15 minutes and seek medical attention. If inhaled, move the person to fresh air and monitor breathing. In case of ingestion, do not induce vomiting and seek immediate medical attention. Always consult the safety data sheet and contact emergency services if serious exposure occurs.

How to dispose of 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol properly?

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol must be disposed of as hazardous waste due to its aquatic toxicity classification (Aquatic Acute 1; Aquatic Chronic 1). The substance cannot be released into sewers, soil, or water bodies and requires professional hazardous waste treatment. Contact licensed waste management companies specialized in chemical disposal for proper treatment through approved methods such as high-temperature incineration. Always comply with local and European waste regulations including the Waste Framework Directive when disposing of this substance.

How to transport 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol?

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol is classified as ADR Class 9 (Miscellaneous Dangerous Substances), Packing Group III for transport purposes. The substance requires appropriate packaging according to ADR regulations and proper shipping documentation including transport emergency cards. Vehicles must display appropriate hazard placards and drivers need ADR certification for dangerous goods transport. Ensure packages are properly labeled, secured against damage, and comply with quantity limitations for different transport categories under European transport regulations.

Is 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol subject to specific regulations?

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol is subject to REACH regulation requiring registration for import/manufacture above one tonne per year in the EU. The substance is classified under CLP regulation with GHS09 pictogram and "Warning" signal word due to its aquatic toxicity. While not currently listed as a SVHC (Substance of Very High Concern), users must comply with classification, labeling, and packaging requirements. Companies must maintain safety data sheets and ensure downstream user communication about safe use conditions.

Where to buy 4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol in Europe?

4-[1-(4-hydroxyphenyl)-1-phenylethyl]phenol is available through OYSI, a specialized European distributor of technical chemicals and industrial raw materials. OYSI provides this substance to qualified industrial customers across Europe with proper documentation including certificates of analysis and safety data sheets. As a professional chemical distributor, OYSI ensures compliance with European regulations including REACH registration requirements and provides technical support for safe handling and application guidance to industrial users.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.