Diphenylmethanol

Diphenylmethanol[1]
Names
	IUPAC name Diphenylmethanol
	Other names Benzhydrol; Diphenylcarbinol; Hydroxydiphenylmethane
Identifiers
CAS Number	91-01-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	6770 ;
ECHA InfoCard	100.001.849
PubChem CID	7037;
UNII	S4HQ1H8OWD ;
CompTox Dashboard (EPA)	DTXSID2059015 ;
	InChI InChI=1S/C13H12O/c14-13(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10,13-14H Key: QILSFLSDHQAZET-UHFFFAOYSA-N ; InChI=1/C13H12O/c14-13(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10,13-14H Key: QILSFLSDHQAZET-UHFFFAOYAG;
	SMILES OC(c1ccccc1)c2ccccc2;
Properties
Chemical formula	C13H12O
Molar mass	184.238 g·mol−1
Appearance	White crystals
Density	1.103 g/cm3
Melting point	69 °C (156 °F; 342 K)
Boiling point	298 °C (568 °F; 571 K)
Solubility in water	0.5 g/L (20 °C)
Magnetic susceptibility (χ)	-119.1·10−6 cm3/mol
Hazards
R-phrases (outdated)	R36 R37 R38
S-phrases (outdated)	S26 S27 S28 S29 S30 S33 S35 S36
Related compounds
Related compounds	Benzophenone
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Diphenylmethanol is the organic compound with the formula (C₆H₅)₂CHOH. Also known as benzhydrol, it is a white solid and the parent member of a large class of diaryl alcohols.

It has uses in perfume and pharmaceutical manufacture. In perfumery it is used as a fixative. In pharmaceutical manufacture it is used in the synthesis of antihistamines / antiallergenic agents and antihypertensive agents . It is used in the synthesis of Modafinil[2] and the Benzhydryl group is present in the structure of many histamine H1 antagonists like diphenylhydramine. Benzhydrol is also used in the production of agrochemicals as well as other organic compounds and as a terminating group in polymerizations.

Diphenylmethanol is an irritant to the eyes, skin and respiratory system.

Preparation

Diphenylmethanol may be prepared by a Grignard reaction between phenylmagnesium bromide and benzaldehyde. An alternative method involves reducing benzophenone with sodium borohydride or with zinc dust or with sodium amalgam and water.[3]

References

MSDS
EP 1583739
Wiselogle, F. Y.; Sonneborn, III, H. (1928). "Benzohydrol". Organic Syntheses. 8: 23. doi:10.15227/orgsyn.008.0024.

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[1] MSDS

[2] EP 1583739

[3] Wiselogle, F. Y.; Sonneborn, III, H. (1928). "Benzohydrol". Organic Syntheses. 8: 23. doi:10.15227/orgsyn.008.0024.