Catechol

Name: Catechol
SKU: 0

CAS No.: 120-80-9
Molecular Formula: C6H6O2
Molecular weight: 110.11

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product description

Catechol is a white crystalline solid. Turnsbrown on contact with light and air. Molecularweight=110.12; Specific gravity (H2O:1)=1.3; Boilingpoint=245.5℃; Freezing/Melting point=104℃. It sublimes readily; Vapor pressure=10 mmHg at 117℃; Flashpoint=127℃; Autoignition temperature=512℃. Explosive Limits in air: LEL=1.4%; UEL-Unknown. Hazard Identification (based on NFPA 704 M RatingSystem): Health 3, Flammability 1, Reactivity 2. Solubilityin water=44%.

Chemical Properties

Property	Value
Melting point	100-103 °C (lit.)
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)

Safety Information

Property	Value
Hazard symbol	Xn
Hazard class codes	21/22-36/38-68-43
Safety descriptions	22-26-37-39
UN dangerous goods number	UN 2811 6.1/PG 3
Occupational exposure class	A
Occupational exposure limit	TWA: 5 ppm (20 mg/m³) [skin]
WGK Germany	2
RTECS number	UX1050000
TSCA	TSCA listed
HS code	2907 29 00
Hazard class	6.1
Packing group	III
Storage class	6.1C - Combustible, acute toxicity Category 3 Toxic compounds or compounds causing chronic effects
Hazard class (category)	Acute toxicity, Category 3, Dermal Acute toxicity, Category 3, Oral Carcinogenicity, Category 1B Serious eye damage, Category 1 Germ cell mutagenicity, Category 2 Skin irritation, Category 2 Skin sensitization, Category 1
Hazardous substances data	120-80-9 (Hazardous Substances Data)
Toxicity	LD50 in mice (mg/kg): 260 orally; 190 i.p. (Lehman)

Product Usage

Catechol is a critical organic compound and a versatile building block extensively used in the fine chemical and pharmaceutical industries. Its most prominent application is as a key intermediate in the synthesis of life-saving drugs, including catecholamines like adrenaline, dopamine, and L-dopa, which are essential for treating neurological and cardiovascular conditions. In the agrochemical sector, it serves as a fundamental precursor for manufacturing high-efficiency insecticides and carbamate pesticides. Beyond life sciences, Catechol is vital in the flavor and fragrance industry for producing vanillin and ethylvanillin. Furthermore, its unique antioxidant and metal-chelating properties make it an indispensable additive in industrial applications, such as rubber vulcanization accelerators, polymerization inhibitors, and specialized photographic developing agents.

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Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
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