Agent Name

Catechol

Alternative Name

Pyrocatechol

CAS Number

120-80-9

Formula

C6-H6-O2

Major Category

Other Classes

Synonyms

Pyrocatechol; 1,2-Benzenediol; 1,2-Dihydroxybenzene; 2-Hydroxyphenol; Benzene, o-dihydroxy-; C.I. 76500; C.I. Oxidation Base 26; CI 76500; CI Oxidation Base 26; Catechin (phenol); Catechol (phenol); Durafur developer C; Fouramine PCH; Fourrine 68; Katechol [Czech]; Oxyphenic acid; PYROCATECHOL; Pelagol Grey C; Phthalhydroquinone; Pyrocatechin; Pyrocatechine; Pyrocatechinic acid; Pyrocatechuic acid; Pyrokatechin [Czech]; Pyrokatechol [Czech]; o-Benzenediol; o-Dihydroxybenzene; o-Dioxybenzene; o-Diphenol; o-Hydroquinone; o-Hydroxyphenol; o-Phenylenediol; ortho-Benzenediol; ortho-Dihydroxybenzene; ortho-Dioxybenzene; ortho-Hydroquinone; ortho-Hydroxyphenol; ortho-Phenylenediol; [ChemIDplus] UN2811

Category

Phenols

Description

Colorless, crystalline solid with a faint odor; Note: Discolors to brown in air & light; [NIOSH]

Sources/Uses

Used in the photography, rubber, dye, and oil industries as an antioxidant; also used to produce cosmetics and pharmaceuticals; [ACGIH]

Comments

Repeated doses of catechol may induce methemoglobinemia in experimental animals. [HSDB] Potential skin sensitizer; Inhalation of high concentrations can cause CNS depression; [ICSC] The solid form will burn skin. [CHRIS]

Exposure Assessment
Skin Designation (ACGIH)

Yes

TLV (ACGIH)

5 ppm

Vapor Pressure

0.03 mm Hg

Explanatory Notes

Flash point = 127 deg C;

Flammability (NFPA)

1: Must be preheated

Adverse Effects
Skin Sensitizer

Yes

Neurotoxin

Other CNS Neurotoxin

Methemoglobinemia

Methemoglobinemia, Secondary

Dermatotoxin

Skin Burns

IARC Carcinogen

Possible Carcinogen

ACGIH Carcinogen

Confirmed Animal

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure:

Activities

Activities with risk of exposure: