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Fungicides

4-Hydroxybiphenyl

Also known as 4-Phenylphenol, [1,1'-Biphenyl]-4-ol, Biphenyl-4-ol

CAS 92-69-3Formula C12H10OMolar mass 170.21 g/molEC 202-179-2
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 36 suppliers listed
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4-Hydroxybiphenyl chemical structure, C12H10O, CAS 92-69-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Nearly white crystals
Melting point
164 to 165
Boiling point
305 to 308
Density
1.27 kg/l @ 25 °C
Flash point
165.6 °C
HS code
290719
Category
Fungicides
Illustrative photo, colourless crystals in small glass vials on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is 4-Hydroxybiphenyl?

Plain description, key identifiers and synonyms

Biphenyl-4-ol is a member of the class of hydroxybiphenyls that is biphenyl carrying a hydroxy group at position 4.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-phenylphenol
CAS number
92-69-3 CAS number cross-checkedOther or deprecated CAS: 1322-20-9, 446276-69-3
EC numbers
202-179-2, 215-333-9
Molecular formula
C12H10O
UNII
50LH4BZ6MD
MDL number
MFCD00002347
InChIKey
YXVFYQXJAXKLAK-UHFFFAOYSA-N
InChI
InChI=1S/C12H10O/c13-12-8-6-11(7-9-12)10-4-2-1-3-5-10/h1-9,13H
SMILES (canonical and isomeric)
C1=CC=C(C=C1)C2=CC=C(C=C2)O

Synonyms

  • 4-Phenylphenol
  • [1,1'-Biphenyl]-4-ol
  • Biphenyl-4-ol
  • p-Phenylphenol
  • 4-Biphenylol
  • p-Hydroxybiphenyl
  • p-Hydroxydiphenyl
  • 4-Hydroxydiphenyl
  • Paraxenol
  • p-Biphenylol
  • 4-Diphenylol
  • para-Phenylphenol
  • para-Hydroxydiphenyl
  • Tetrasin P 300
  • Tetrosin P 300
  • Biphenyl, 4-hydroxy-
  • (1,1'-Biphenyl)-4-ol
  • Daicarrier dk-cn
  • Phenol p-phenyl
  • 1-Hydroxy-4-phenylbenzene
  • 4-Hydroxy-biphenyl
  • 4-Hydroxy-1,1'-biphenyl
  • 4-phenyl phenol
  • 4-Phenylphenol-13C6
  • (1,1'-Biphenyl)ol
Show all 34 synonyms
  • [1,1/'-biphenyl]ol
  • 4-phenyl-phenol
  • p-Xenol
  • Phenol, p-phenyl
  • 4'-hydroxybiphenyl
  • 4-hydroxy biphenyl
  • 4-Phenylphenol, 97%
  • [1,1''-biphenyl]-4-ol
  • 4-Phenylphenol, analytical standard

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Nearly white crystalsexp.
Melting point
164 to 165exp.
Boiling point
305 to 308exp.
Density
1.27 kg/l @ 25 °Cexp.
Flash point
165.6 °Cexp.
Solubility
SOL IN ALCOHOL, ALSO IN ALKALIES & MOST ORGANIC SOLVENTS, INSOLUBLE IN WATERexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
170.21 g/molcalc.
Exact mass
170.0732 Dacalc.
LogP (octanol/water)
3.06calc.
Topological polar surface area
20.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
13calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc(-c2ccccc2)cc1

c1ccc(-c2ccccc2)cc1

2 rings, 12 atoms, the Biphenyl ring system.

32,228 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (18)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

4-Hydroxybiphenyl suppliers

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All 36 suppliers
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Where suppliers are based

36 suppliers in 7 countries

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4-Hydroxybiphenyl price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

As intermediate in manufacture of resins, also in rubber industry.

Intermediate for dyes and resins, rubber chemicals, laboratory reagent, fungicide.

Derivatives: bitertanol, phenolic resins, oil-soluble, non oil-reactive, phenolic resins, oil-soluble, oil-reactive.

4-Hydroxybiphenyl is an intermediate for the production of varnish resins and nonionogenic emulsifiers which are used in the plant protection, polyurethane, and dyeing sectors.

Industrial uses: Other, Intermediate.

Functional uses

  • Biocide

How it is made

From reaction of chlorobenzene & caustic soda solution @ elevated temp & pressure.

Biphenyl (sulphonation/alkali fusion, coproduced with o-phenylphenol)

Chlorobenzene (arylation/base-catalysed hydrolysis, coproduced with o-phenylphenol)

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 4-Hydroxybiphenyl is traded under.

HS 2907.19Indicative HS code

Monophenols, other

World exports in 2024
$671M
+2.2% vs 2023, imports $781M
2019 to 2024
Top exporters
  1. China20.1%
  2. Germany14.4%
  3. Switzerland * partner reported11.1%
Top importers
  1. China16.3%
  2. Germany10.1%
  3. South Korea8.0%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 4-Hydroxybiphenyl is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 4-Hydroxybiphenyl, based on the data on this page

What is 4-Hydroxybiphenyl?

Biphenyl-4-ol is a member of the class of hydroxybiphenyls that is biphenyl carrying a hydroxy group at position 4.

What is the CAS number of 4-Hydroxybiphenyl?

The CAS registry number of 4-Hydroxybiphenyl is 92-69-3. Other or deprecated CAS numbers: 1322-20-9, 446276-69-3.

What is the molecular formula and weight of 4-Hydroxybiphenyl?

The molecular formula of 4-Hydroxybiphenyl is C12H10O and its molar mass is 170.21 g/mol.

What is 4-Hydroxybiphenyl used for?

As intermediate in manufacture of resins, also in rubber industry. Intermediate for dyes and resins, rubber chemicals, laboratory reagent, fungicide. Derivatives: bitertanol, phenolic resins, oil-soluble, non oil-reactive, phenolic resins, oil-soluble, oil-reactive.

Is 4-Hydroxybiphenyl hazardous?

4-Hydroxybiphenyl carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 4-Hydroxybiphenyl?

4-Hydroxybiphenyl is usually classified under HS code 290719 (Monophenols, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 4-Hydroxybiphenyl?

CompoundList lists 36 suppliers of 4-Hydroxybiphenyl in China, United States, Canada, United Kingdom and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 4-Hydroxybiphenyl?

Suppliers quote 4-Hydroxybiphenyl on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 4-Hydroxybiphenyl

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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