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              20220326141712

              4-Chloro-4’-Hydroxy Benzophenone,CAS#42019-78-3

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              4-Chloro-4’-Hydroxy Benzophenone,CAS#42019-78-3

              CAS#: 42019-78-3
              Molecular Formula: C13H9O2Cl
              Structural Formula:?zd
              Uses: the intermediate of fenofibrate.


              Product Detail

              Product Tags

              Specification:
              Appearance: Orange to brick red crystal powder
              Loss on drying: ≤0.50%
              Residue on ignition: ≤0.5%
              Single impurity: ≤0.5%
              Total impurities: ≤1.5%
              Purity: ≥99.0%
              Packing: 250kg/bag and 25kg/fiber drum

              Physicochemical properties:
              Density: 1.307 g / cm3
              Melting point: 177-181 ° C
              Flash point: 100 ° C
              Refractive index: 1.623
              Storage condition: store in a tightly closed container Store in a cool, dry, well-ventilated area away from incompatible substances.
              Stable: Stable under normal temperatures and pressures

              Specific application
              It is generally used in organic synthesis and is an intermediate of the anti infertility drug radiomiphene

              Production method:
              1.?P-chlorobenzoyl chloride was prepared by the reaction of p-chlorobenzoyl chloride with anisole, followed by hydrolysis and demethylation.
              2. Reaction of p-chlorobenzoyl chloride with phenol: dissolve 9.4g (0.1mol) of phenol in 4ml of 10% sodium hydroxide solution, add 14ml (0.110mol) of p-chlorobenzoyl chloride dropwise at 40 ~ 45 ℃, add it within 30min, and react at the same temperature for 1H. Cool to room temperature, filter and dry to obtain 22.3g of phenyl p-Chlorobenzoate. The yield is 96%, and the melting point is 99 ~ 101 ℃.

              Production method:

              1. P-chlorobenzoyl chloride was prepared by the reaction of p-chlorobenzoyl chloride with anisole, followed by hydrolysis and demethylation.
              2. Reaction of p-chlorobenzoyl chloride with phenol: dissolve 9.4g (0.1mol) of phenol in 4ml of 10% sodium hydroxide solution, add 14ml (0.110mol) of p-chlorobenzoyl chloride dropwise at 40 ~ 45 , add it within 30min, and react at the same temperature for 1H. Cool to room temperature, filter and dry to obtain 22.3g of phenyl p-Chlorobenzoate. The yield is 96%, and the melting point is 99 ~ 101 .

              Health hazard:
              cause skin irritation. Cause serious eye irritation. May cause respiratory tract irritation.

              Precautions:
              Clean thoroughly after operation.
              Wear protective gloves / protective clothing / protective goggles / protective masks.
              Avoid inhalation of dust / smoke / gas / smoke / vapour / spray.
              Use only outdoors or with good ventilation.

              Accident response:
              In case of skin contamination: wash thoroughly with water.
              In case of skin irritation: seek medical attention.
              Take off the contaminated clothes and wash them before reuse
              If in eyes: Rinse carefully with water for a few minutes. If you wear contact lenses and can easily take them out, take them out. Continue flushing.
              If you still feel eye irritation: see a doctor / doctor.
              In case of accidental inhalation: transfer the person to a place with fresh air and maintain a comfortable breathing position.
              If you feel unwell, call the detoxification center / doctor

               

              Safe storage:
              Store in a well ventilated place. Keep the container closed.
              The storage area must be locked.

              Waste disposal:
              Dispose of contents / containers in accordance with local regulations.

              First aid measures:
              Inhalation: if inhaled, move the patient to fresh air.
              Skin contact: take off contaminated clothes and wash skin thoroughly with soapy water and clear water. If you feel unwell, see a doctor.
              Eye contact: separate eyelids and rinse with flowing water or normal saline. Seek medical attention immediately.
              Ingestion: gargle and do not induce vomiting. Seek medical attention immediately.
              Advice to protect the rescuer: transfer the patient to a safe place. Consult a doctor. Show this chemical safety technical manual to the doctor on site.


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