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HomeProduct name list2,2'-Biphenol

2,2'-Biphenol

Synonym(s):2,2′-Biphenyldiol;2,2′-Dihydroxybiphenyl;2,2′-Diphenol;Biphenyl-2,2′-diol;o,o′-Biphenol, 2,2′-Dihydroxydiphenyl

  • CAS NO.:1806-29-7
  • Empirical Formula: C12H10O2
  • Molecular Weight: 186.21
  • MDL number: MFCD00002210
  • EINECS: 217-303-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-14 18:20:50
2,2'-Biphenol Structural

What is 2,2'-Biphenol?

Chemical properties

Beige to greyish-beige powder

The Uses of 2,2'-Biphenol

2,2'-Dihydroxybiphenyl, is an important raw material and intermediate used in organic Synthesis, pharmaceuticals, agrochemicals and dyestuff.

Definition

ChEBI: A member of the class of hydroxybiphenyls carrying hydroxy groups at positions 2 and 2'.

Production Methods

2,2'-Dihydroxybiphenyl is obtained by alkaline fusion of biphenylene oxide at ca. 300 ℃ (sometimes catalyzed by fluorene or carbazole) or by debutylation of 3,3',5,5'-tetra-tert-butyl-2,2'-dihydroxybiphenyl, which itself is produced by the oxidative coupling of 2,4-di-tert-butylphenol. 2,2'-Dihydroxy-5,5'-dimethylbiphenyl can be synthesized accordingly.

Safety Profile

Poison by intraperitoneal andintravenous routes. Human mutation data reported. Whenheated to decomposition it emits acrid smoke andirritating fumes.

Purification Methods

Crystallise the biphenyl repeatedly from toluene, then sublime it at 60o/10-4mm. [Beilstein 6 IV 6645.]

Properties of 2,2'-Biphenol

Melting point: 108-110 °C
Boiling point: 315 °C(lit.)
Density  0.83
refractive index  1.6086 (estimate)
Flash point: 154 °C
storage temp.  Store below +30°C.
form  Powder
pka 7.32±0.10(Predicted)
color  Beige to grayish-beige
Water Solubility  insoluble
BRN  1638363
CAS DataBase Reference 1806-29-7(CAS DataBase Reference)
NIST Chemistry Reference [1,1'-Biphenyl]-2,2'-diol(1806-29-7)
EPA Substance Registry System 2,2'-Biphenol (1806-29-7)

Safety information for 2,2'-Biphenol

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Skull and Crossbones
Acute Toxicity
GHS06
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H301:Acute toxicity,oral
H302:Acute toxicity,oral
H315:Skin corrosion/irritation
H318:Serious eye damage/eye irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P270:Do not eat, drink or smoke when using this product.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P321:Specific treatment (see … on this label).
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.
P501:Dispose of contents/container to..…

Computed Descriptors for 2,2'-Biphenol

InChIKey IMHDGJOMLMDPJN-UHFFFAOYSA-N

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