Synonyms:

1,2-Benzenediol (pyrocatechol);1,2-benzenediol[qr];1,2-dihydroxybenzene[qr];2-Hydroxyphenol;2-hydroxyphenol[qr];ai3-03995[qr];Benzene, o-dihydroxy-;benzene,1,2-dihydroxy-

CAS:

120-80-9

MF:

C6H6O2

MW:

110.11

EINECS:

204-427-5

Product Categories:

Building Blocks;Chemical Synthesis;Organic Building Blocks;Oxygen Compounds;Polyols;Aromatics;Miscellaneous Reagents;Intermediates;Aromatic Phenols

Mol File:

120-80-9.mol

Catechol Chemical Properties

Boiling point

245 °C (lit.)

density

1,371 g/cm3

vapor density

3.8 (vs air)

vapor pressure

1 mm Hg ( 75 °C)

refractive index

1.6120 (estimate)

Fp

279 °F

storage temp.

Store below +30°C.

solubility

430g/l

pka

9.85(at 20℃)

form

Crystalline Flakes

color

white to faintly beige

PH

6 (100g/l, H2O, 20℃)

explosive limit

1.97%(V)

biological source

synthetic (organic)

Water Solubility

430 g/L (20 ºC)

Sensitive

Air & Light Sensitive

Merck

14,7999

BRN

471401

Exposure limits

TLV-TWA 5 ppm (～22 mg/m3) (ACGIH). .

Stability:

Stable. Substances to be avoided include acid chlorides, acid anhydrides, bases, oxidizing agents, nitric acid. Light sensitive; may discolour on exposure to air. Combustible.

LogP

0.93

CAS DataBase Reference

120-80-9(CAS DataBase Reference)

NIST Chemistry Reference

1,2-Benzenediol(120-80-9)

IARC

2B (Vol. 15, Sup 7, 71) 1999

EPA Substance Registry System

Catechol (120-80-9)