Catechol
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Catechol
structure -
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CAS No:
120-80-9
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Formula:
C6H6O2
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Chemical Name:
Catechol
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Synonyms:
1,2-Benzenediol;Pyrocatechol;C.I. 76500;o-Benzenediol;C.I. Oxidation Base 26;o-Dihydroxybenzene;1,2-Dihydroxybenzene;Durafur Developer C;Fouramine PCH;Fourrine 68;2-Hydroxyphenol;Oxyphenic acid;Pelagol Grey C;Pyrocatechin;Catechol;o-Dioxybenzene;o-Hydroxyphenol;Catechol (phenol);Pyrocatechine;o-Phenylenediol;Phthalhydroquinone;o-Hydroquinone;Phthalic alcohol;NSC 1573;Z 1;Z 1 (inhibitor);1,2-Hydroxybenzene;5,6-Dihydroxybenzene;16474-90-1;16474-89-8;37349-32-9
- Categories:
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CAS No:
Description
Colorless, crystalline solid with a faint odor. [Note: Discolors to brown in air & light.]
Characteristics
40.5
0.88
white to faintly beige Crystalline Flakes
1.344 g/cm3
105 °C
245.5 °C @ Press: 760 Torr
279 °F
1.612
H2O: 430 g/L (20 ºC)
Store at RT.
1 mm Hg ( 75 °C)
3.8 (vs air)
Oral-rat LD50: 260 mg/kg; Oral-Mouse LD50: 260 mg/kg
In case of heat, open flame is combustible; burning produces irritating smoke
1.97%(V)
Faint characteristic odor
Sweet and bitter taste
9.45(at 25 °C)
Safety Information
III
6.1
UN 2811 6.1/PG 3
2
21/22-36/38-68-43
22-26-37-39
UX1050000
Xn
Treasury is ventilated at low temperature and dry; stored separately from oxidants and food additives
Reacts violently with oxidants
Stable. Substances to be avoided include acid chlorides, acid anhydrides, bases, oxidizing agents, nitric acid. Light sensitive; may discolour on exposure to air. Combustible.
P280-P301 + P310-P305 + P351 + P338-P312
H301 + H311-H315-H317-H318-H332-H341
Catechol Use and Manufacturing
The preparation methods are as follows: 2, 4-disulfophenol alkali fusion hydrolysis method; o-chlorophenol hydrolysis method; phenol direct oxidation method; phenol oxidation method; o-hydroxycyclohexanone dehydroaromatization method. Among them, (1) and (2) are complicated in process, more polluted by three wastes, and are gradually replaced by new processes, while methods (4) and (5) are undergoing industrialization trials abroad. The direct phenol oxidation method uses hydrogen peroxide as the oxidant, and the hydroxylation reaction occurs directly in the ortho and para positions of the phenol in the presence of the catalyst. This method has achieved great success since the 1970s. In 1973, Rhône-Planck Company of France built an industrial plant with catechol 10800t/a and hydroquinone 7200t/a, and Japan’s Utsuko Industries also built a 600t/a catechol installation. The direct oxidation method has become the most convenient method for producing catechol, using methyl isobutyl ketone as the extractant to extract and separate o-, hydroquinone and unreacted phenol. The process is directly oxidized by phenol and hydrogen peroxide. This method has been industrialized abroad and domestically in recent years. Phenol and methyl ethyl ketone, 60% H2O2 and activated clay VH and 85% H3PO4 were added into the reactor, and the reaction was stirred at 100°C for 30 min, and the phenol was converted into catechol and hydroquinone.
In photography; dyeing fur; as reagent.
Computed Properties
Molecular Weight:110.11
XLogP3:0.9
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Exact Mass:110.036779430
Monoisotopic Mass:110.036779430
Topological Polar Surface Area:40.5
Heavy Atom Count:8
Complexity:62.9
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
Price Analysis
- Data: 2026-07-09
- Price: 12000.00Yuan/ton
- Change: 0
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