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Catechol120-80-9

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CAS No.:

120-80-9

Grade:

Pharmaceutical Grade

Content:

99.5%

Port:

上海

Brand:

OORENT

Packaging:

Vial/Bottle/Bag/Carton

Price valid (until):

2026-07-16

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Qingdao Orient Chemical Co.,LTD

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Trader

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China

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Product Description
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Inquiry History

Description

Product Detail

Catechol Basic information

Product Name:	Catechol
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;Aromatics;Organic Building Blocks;Oxygen Compounds;Polyols;Intermediates;Aromatic Phenols;Miscellaneous Reagents;A
Mol File:	120-80-9.mol

Catechol Chemical Properties

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
Henry's Law Constant	8.2×10³ mol/(m³Pa) at 25℃, Duchowicz et al. (2020)
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.
Cosmetics Ingredients Functions	HAIR DYEING
InChI	1S/C6H6O2/c7-5-3-1-2-4-6(5)8/h1-4,7-8H
InChIKey	YCIMNLLNPGFGHC-UHFFFAOYSA-N
SMILES	Oc1ccccc1O
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

Hazard Codes	Xn
Risk Statements	21/22-36/38-68-43
Safety Statements	22-26-37-39
RIDADR	UN 2811 6.1/PG 3
OEB	A
OEL	TWA: 5 ppm (20 mg/m3) [skin]
WGK Germany	2
RTECS	UX1050000
TSCA	TSCA listed
HS Code	2907 29 00
HazardClass	6.1
PackingGroup	III
Storage Class	6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
Hazard Classifications	Acute Tox. 3 Dermal Acute Tox. 3 Oral Carc. 1B Eye Dam. 1 Muta. 2 Skin Irrit. 2 Skin Sens. 1
Hazardous Substances Data	120-80-9(Hazardous Substances Data)
Toxicity	LD50 in mice (mg/kg): 260 orally; 190 i.p. (Lehman)

Catechol Usage And Synthesis

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	Off-white powder
Chemical Properties	Catechol also called Pyrocatechol is a white crystalline solid. Turns brown on contact with light and air.
Uses	Catechol is used in photography, in dyeing fur, and as a topical antiseptic.
Uses	In photography; dyeing fur; as reagent.
Uses	In the manufacture of rubber antioxidants and monomer inhibitors to stop radical polymerization; in dyes, as a photographic developer; in formulations for pharmaceuticals, perfumes, inks, and insecticides
Production Methods	Catechol may be obtained by the fusion of o-phenolsulfonic acid with alkali, by heating chorophenol with a solution of sodium hydroxide at 200°C in an autoclave, or by cleavage of the methyl ether group of guaiacol (obtained from beechwood tar) with hydriodic acid.
Definition	A colourless crystalline PHENOL containing two hydroxyl groups. It is used in photographic developing.
Synthesis Reference(s)	The Journal of Organic Chemistry, 45, p. 4275, 1980 DOI: 10.1021/jo01310a003
General Description	Solid; white; odorless. Sinks and mixes with water.
Air & Water Reactions	Turns brown on exposure to air and light, especially when moist. Water soluble. Aqueous solutions soon turn brown on exposure to air and light.
Reactivity Profile	POISONOUS GASES MAY BE PRODUCED WHEN HEATED. Pyrocatechol may form toxic fumes at high temperatures. [USCG, 1999]. Pyrocatechol can react with acid chlorides, acid anhydrides, bases and oxidizing agents. Pyrocatechol reacts violently on contact with concentrated nitric acid. Pyrocatechol acts as a reducing agent .
Hazard	Strong irritant. Toxic by skin absorption. Eye and upper respiratory tract irritant, and der- matitis. Possible carcinogen.
Health Hazard	DUST: Irritating to eyes, nose and throat. If inhaled will cause coughing or difficult breathing. SOLID: Will burn skin and eyes. Harmful if swallowed.
Health Hazard	Acute oral and percutaneous toxicity of pyrocatechol is greater than that of phenol; inhalation toxicity is less than that of phenol. The toxic symptoms include weakness, muscular pain, dark urine, tremor, dyspnea, and convulsions. Large amounts can produce degenerative changes in renal tubules. Large doses can cause death due to respiratory failure. Skin contact can cause eczematous dermatitis. LD50 value, oral (rats): 260 mg/kg LD50 value, skin (rabbits): 800 mg/kg.
Fire Hazard	Combustible. POISONOUS GASES MAY BE PRODUCED WHEN HEATED. May form toxic fumes at high temperatures.
Flammability and Explosibility	Non flammable
Safety Profile	Poison by ingestion, subcutaneous, intraperitoneal, intravenous, and parenteral routes. Moderately toxic by skin contact. Experimental reproductive effects. Can cause dermatitis on skin contact. An allergen. Human mutation data reported. Questionable carcinogen. Systemic effects sirmlar to those of phenol. Combustible when exposed to heat or flame; can react vigorously with oxidizing materials. Hypergolic reaction with concentrated nitric acid. To fight fire, use water, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also PHENOL.
Potential Exposure	Used as a chemical intermediate; pharmaceutical and veterinary drug; as an antiseptic; in photography; in dyestuff manufacture and application. It is also used in electroplating, in the formulation of specialty inks; in antioxidants; and light stabilizers.
First aid	If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit. Note to physician: Treat for methemoglobinemia.Spectrophotometry may be required for precise determination of levels of methemoglobinemia in urine.
Carcinogenicity	Catechol has been extensively studied for its role in carcinogenesis of the rat glandular stomach; it was concluded that pyrocatechol is carcinogenic. When rats and mice were administered 0.8% pyrocatechol in their feed for life, there was an increase in glandular stomach adenocarcinoma in both male and female rats. Pyrocatechol also caused hyperplasia of the glandular stomach in both rats and mice, a mechanism that could cause promotion of carcinogen-initiated cells; no effects on the esophagus or urinary bladder were reported. There were no cutaneous neoplasms when pyrocatechol was applied in dermal studies. Catechol may be classified as a cocarcinogen because it enhanced the number and/or incidence of lesions in the stomach induced by several carcinogenic nitrosamines and cutaneous neoplasms when administered dermally together with several carcinogens.
storage	Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with catecholyou should be trained on its proper handling and storage.Before entering confined space where this chemical may bepresent, check to make sure that an explosive concentrationdoes not exist. Store in tightly closed containers in a cool,well-ventilated area away from strong oxidizers and acids.Use only nonsparking tools and equipment, especially whenopening and closing containers of this chemical. Sources ofignition, such as smoking and open flames, are prohibitedwhere this chemical is used, handled, or stored in a mannerthat could create a potential fire or explosion hazard.
Shipping	UN 2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Purification Methods	Crystallise catechol from *benzene or toluene and sublime it in vacuo. [Rozo et al. Anal Chem 58 2988 1986, Beilstein 6 IV 5557.]
Incompatibilities	Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.

Catechol Preparation Products And Raw materials

Raw materials

Hydrogen peroxide-->Phenol-->Chlorosulfonic acid-->2-Butanone-->Cyclohexanone-->Hydroquinone-->4-Methyl-2-pentanone-->Guaiacol-->Montmorillonite K10-->2-Chlorophenol-->CREOSOTE-->Protocatechuic acid-->2-Methoxy-4-methylphenol

Preparation Products

Hydroquinone-->Carbofuran-->Ethyl vanillin-->Piperonyl aldehyde-->Propoxur-->2,3-Dihydro-2,2-dimethyl-7-benzofuranol-->4'-FORMYLBENZO-15-CROWN 5-ETHER-->1,3-Benzodioxole-->DIETHOFENCARB-->2-(5-BROMO-2-PYRIDYLAZO)-5-(DIETHYLAMINO)PHENOL-->1,2-Dimethoxybenzene-->2,3-DIHYDRO-1,4-BENZODIOXINE-2-CARBONYL CHLORIDE-->4-tert-Butylcatechol-->1-Bromo-1-cyclopentene-->O-BROMANIL-->3,4-(Methylenedioxy)phenylacetonitrile-->Benzo-15-crown-5-->1,2-Diethoxybenzene-->2-Isopropoxyphenol-->[[o-(allyloxy)phenoxy]methyl]oxirane-->2-[(2-METHYL-2-PROPENYL)OXY]-PHENOL-->PIPERONYL FORMALDEHYDE-->BENZO[1,3]DIOXOLE-5-SULFONYL CHLORIDE-->2,3-DIHYDRO-1,4-BENZODIOXIN-2-METHANOL 4-METHYLBENZENESULFONATE-->2-Chloro-3',4'-dihydroxyacetophenone-->CATECHOLBORANE-->Piperonyl chloride-->2-(Allyloxy)phenol-->2-HYDROXYMETHYL-1,4-BENZODIOXANE-->1-Iodoheptane-->Pyrocatechol Violet-->Adrenalone-->1-(3,4-dihydroxyphenyl)-2-[(1-methylethyl)amino]ethan-1-one-->4-BROMOCATECHOL-->Isoproterenol

Shop o-Phenylenediamine95-54-5-Detailed Image 5

Basic Info

Product Name:

Catechol

Other Name:

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

CAS No.:

120-80-9

Molecular Formula:

C6H6O2

InChIKeys:

InChIKey=YCIMNLLNPGFGHC-UHFFFAOYSA-N

Molecular Weight:

110.11

Exact Mass:

110.11

BRN:

471401

EC Number:

204-427-5

HScode:

2907291000

Categories:

Alcohols, Phenols, Phenol Alcohols

Characteristics

PSA:

40.5

XLogP3:

0.88

Appearance:

white to faintly beige Crystalline Flakes

Density:

1.344 g/cm³

Melting Point:

105 °C

Boiling Point:

245.5 °C @ Press: 760 Torr

Flash Point:

279 °F

Refractive Index:

1.612

Water Solubility:

H2O: 430 g/L (20 ºC)

Storage Conditions:

Store at RT.

Vapor Pressure:

1 mm Hg ( 75 °C)

Vapor Density:

3.8 (vs air)

Toxicity:

Oral-rat LD50: 260 mg/kg; Oral-Mouse LD50: 260 mg/kg

Flammability characteristics:

In case of heat, open flame is combustible; burning produces irritating smoke

Explosive limit:

1.97%(V)

Odor:

Faint characteristic odor

Taste:

Sweet and bitter taste

PKA:

9.45(at 25 °C)

See More Catechol Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 3, Oral

Acute toxicity - Category 3, Dermal

Skin irritation, Category 2

Eye irritation, Category 2

Germ cell mutagenicity, Category 2

Carcinogenicity, Category 1B

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H301 Toxic if swallowed H311 Toxic in contact with skin H315 Causes skin irritation H319 Causes serious eye irritation H341 Suspected of causing genetic defects H350 May cause cancer
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P203 Obtain, read and follow all safety instructions before use.
Response	P301+P316 IF SWALLOWED: Get emergency medical help immediately. P321 Specific treatment (see ... on this label). P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P316 Get emergency medical help immediately. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P318 IF exposed or concerned, get medical advice.
Storage	P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO open flames. NO contact with oxidizing agents. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Well closed. Separated from oxidants and food and feedstuffs. Keep in the dark. Ventilation along the floor. Store in an area without drain or sewer access.Separated from strong oxidants, food and feedstuffs. Keep in the dark. Ventilation along the floor.

See More Catechol Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
pharmaceutical intermediates,peptides,electronic chemicals

Location:
Room 102, 1st Floor, East Office Building, No. 45 Pengwan Road, Qianwan Bonded Port Area, Qingdao Zone, China (Shandong) Pilot Free Trade Zone

Payment Terms:
100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2024

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Website: orientchem.cc
Email: scarlett@orientchem.cc
WhatsApp: +86 17753254221

Inquiry History

2 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	Catechol	100 KG	Nov 19, 2024
Latvia	catechol	100 G	Aug 12, 2023

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