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Pyrogallol

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Unit Price:

$22.68/KG FOB

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CAS No.:

87-66-1

Port:

ShangHai

Packaging:

25kg

Price valid (until):

2026-08-08

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Anstar

Company Type:

Distributor

Location:

United Kingdom

Qualification:

Main Products:

Photoinitiators

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Pyrogallol (PYG) is a versatile phenolic compound widely used as a reducing agent, analytical reagent, chemical intermediate, oxygen absorber, and specialty formulation material. Also known as 1,2,3-trihydroxybenzene or pyrogallic acid, Pyrogallol is valued for its strong reducing properties, high reactivity, and usefulness in chemical synthesis, laboratory analysis, photographic development, dye intermediates, and industrial processing applications. Pyrogallol has CAS number 87-66-1, EC number 201-762-9, molecular formula C₆H₆O₃ / C₆H₃(OH)₃, and molecular weight 126.11 g/mol.

Key Product Information

Attribute	Description
Product Name	Pyrogallol
Abbreviation	PYG
Chemical Name	1,2,3-Trihydroxybenzene
Synonyms	Pyrogallic acid, 1,2,3-Benzenetriol
CAS Number	87-66-1
EC Number	201-762-9
Molecular Formula	C₆H₆O₃ / C₆H₃(OH)₃
Molecular Weight	126.11 g/mol
Appearance	Solid crystalline powder, typically white to light yellow
Solubility	Soluble in water
Main Function	Reducing agent, analytical reagent, chemical intermediate

Pyrogallol is available commercially in high-purity grades, including ACS reagent and synthesis grades; for example, supplier specifications commonly list assay values such as ≥99% depending on grade and application requirement.

Key Features

Feature	Benefit
Strong reducing ability	Useful in analytical, photographic, and synthesis applications
Phenolic chemical structure	Supports high reactivity in specialty chemical processes
Water solubility	Easy to incorporate into suitable aqueous systems
Effective oxygen absorption in alkaline systems	Suitable for gas-analysis and oxygen-removal applications
Versatile intermediate	Used in dyes, fine chemicals, and specialty formulations

Typical Applications

Chemical Synthesis and Intermediates

Pyrogallol is used as a reactive phenolic intermediate in the production of specialty chemicals, dye intermediates, and other value-added chemical derivatives. It is suitable for customers requiring a high-reactivity aromatic compound for controlled synthesis and formulation work.

Analytical and Laboratory Reagent

Pyrogallol is widely used in laboratory and analytical applications, including HPLC-related sample preparation and research testing. Its reducing behavior and phenolic functionality make it useful in selected analytical methods and reagent systems.

Photographic and Developer Applications

Due to its reducing properties, Pyrogallol has been used as a photographic developing agent, particularly in specialized black-and-white photographic processes and related developer systems.

Oxygen Absorption and Gas Analysis

In alkaline solution, Pyrogallol can absorb oxygen, making it useful in oxygen-removal and gas-analysis applications. This property is especially valuable in controlled analytical systems where oxygen content needs to be reduced or measured.

Dye, Coating, and Specialty Formulations

Pyrogallol may be used in dye intermediates, color-related chemical systems, coatings, and specialty industrial formulations where strong reducing activity or phenolic functionality is required.

Packaging and Storage

Store Pyrogallol in a cool, dry, and well-ventilated area. Keep containers tightly closed and protect the product from moisture, heat, direct sunlight, and oxidizing materials. For best results, handle under appropriate industrial or laboratory safety procedures and follow the relevant Safety Data Sheet. Supplier safety data classify Pyrogallol with warnings including harmful effects by ingestion, skin contact, or inhalation, suspected genetic effects, and potential long-lasting aquatic harm.

Suggested Short Listing Copy

Pyrogallol (PYG) , also known as 1,2,3-trihydroxybenzene or pyrogallic acid, is a high-reactivity phenolic compound used as a reducing agent, analytical reagent, oxygen absorber, photographic developer, and chemical intermediate. With strong reducing performance, water solubility, and broad application flexibility, Pyrogallol is suitable for laboratory analysis, chemical synthesis, dye intermediates, gas-analysis systems, and specialty industrial formulations.

Conclusion

Pyrogallol is a dependable and multifunctional raw material for industries requiring strong reducing activity, reactive phenolic chemistry, and reliable performance in analytical or specialty chemical applications. Its usefulness in synthesis, laboratory testing, photographic development, oxygen absorption, and dye-related processes makes it a valuable product for both technical and research-focused customers.

Items	Specifications

Basic Info

Product Name:

Pyrogallol

Other Name:

1,2,3-Benzenetriol;Pyrogallol;C.I. 76515;C.I. Oxidation Base 32;Fouramine Brown AP;Fourrine 85;Fourrine PG;Pyrogallic acid;1,2,3-Trihydroxybenzene;2,3-Dihydroxyphenol;NSC 5035;Benzene-1,2,3-triol;Pyrogallol acid;2,6-Dihydroxyphenol;Antioxidant PY;Gallol;1,2,3-Hydroxybenzene;1,2,3-Pyrogallol

CAS No.:

87-66-1

Molecular Formula:

C6H6O3

InChIKeys:

InChIKey=WQGWDDDVZFFDIG-UHFFFAOYSA-N

Molecular Weight:

126.11000

Exact Mass:

126.11

EC Number:

201-762-9

UNII:

01Y4A2QXY0

ICSC Number:

0770

NSC Number:

5035

UN Number:

2811

DSSTox ID:

DTXSID6025983

Color/Form:

White, lustrous crystals or plates|White crystals, becomes grayish on exposure to light and air|Leaflets or needles

HScode:

2907299090

Categories:

Food Antioxidants

Characteristics

PSA:

60.69000

XLogP3:

0.5

Appearance:

Pyrogallic acid is an odorless white to gray solid. Sinks and mixes with water. (USCG, 1999)

Density:

1.453 g/cm³ @ Temp: 4 °C

Melting Point:

133 °C

Boiling Point:

309 °C

Flash Point:

164.4ºC

Refractive Index:

n20/D 1.387

Water Solubility:

H2O: 400 g/L (25 ºC)

Storage Conditions:

IN GENERAL, MATERIALS WHICH ARE TOXIC AS STORED OR WHICH CAN DECOMP INTO TOXIC COMPONENTS SHOULD BE STORED IN A COOL, WELL-VENTILATED PLACE, BUT OUT OF DIRECT RAYS OF THE SUN, AWAY FROM AREAS OF HIGH FIRE HAZARD, & SHOULD BE PERIODICALLY INSPECTED INCOMPATIBLE MATERIALS SHOULD BE ISOLATED

Vapor Pressure:

10 mm Hg ( 167.7 °C)

Vapor Density:

4.4 (vs air)

Toxicity:

LD50 orally in rabbits: 1.6 g/kg (Dollahite)

Explosive limit:

Finely dispersed particles form explosive mixtures in air.

Odor:

Odorless

Henrys Law Constant:

Henry's law constant = 1.57X10-10 atm-cu m/mol at 25 °C (est)

Dissociation Constants:

pKa = 9.01

Experimental Properties:

Conversion factors: 1 mg/L is equivalent to 194 ppm; 1 ppm is equivalent to 0.00515 mg/L at 25 °C and 760 mm Hg|Sublimes slowly when heated; the aqueous solution darkens on exposure to air, quite rapidly when alkaline

Air and Water Reactions:

Turns gray on exposure to light or air. Water soluble.

Reactive Group:

Acids, Weak

Reactivity Alerts:

Strong Reducing Agent

Reactivity Profile:

PYROGALLIC ACID is a strong reducing agent. Reacts with alkalis, NH3, antipyrine, camphor, phenol, iron and lead salts, iodine, lime water, menthol and KMnO4. (NTP, 1992)

Heat of Combustion:

2.673 MJ/mol (638.9 kcal/mol)

See More Pyrogallol Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

Acute toxicity - Category 4, Dermal

Acute toxicity - Category 4, Inhalation

Germ cell mutagenicity, Category 2

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H302 Harmful if swallowed H312 Harmful in contact with skin H332 Harmful if inhaled H341 Suspected of causing genetic defects H412 Harmful to aquatic life with long lasting effects
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/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P203 Obtain, read and follow all safety instructions before use. P273 Avoid release to the environment.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P317 Get medical help. P321 Specific treatment (see ... on this label). P362+P364 Take off contaminated clothing and wash it before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. 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. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. 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

Separated from strong oxidants and strong bases./Store/ separated from strong oxidants, strong bases.

See More Pyrogallol Safety Data Sheet 

Seller Information

Business Type:
Distributor

Main Products:
Photoinitiators

Location:
Airedale house, 423 Kirkstall Road, Leeds, UK, LS4 2EW

Total Annual Revenue:
$5 million-$10 million

Total Employees:
11-50

Year of Establishment:
2018

Anstar is an industry-leading distributor of speciality chemicals, experiencing rapid growth within the EU and UK. We also maintain a global supply chain to serve international markets. Our core offerings encompass UV-Curable raw materials, including Photoinitiators, Monomers, and Oligomers. Additionally, we have expanded our portfolio to include bio-sourced raw materials, such as gallnut-derived antioxidants, for applications in the food, feed, and pharmaceutical sectors. Leveraging our technical acumen and robust supplier relationships, our UK-based sales team is committed to delivering unparalleled service quality. We are dedicated to meeting your raw material needs with reliability and precision.

Inquiry History

3 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	Pyrogallic Acid	475 KG	Jul 21, 2025
Malaysia	1,2,3-Benzenetriol (Pyrogallol) CIF Price Malaysia - 50Kg needed	50 KG	Jul 1, 2024
Malaysia	1,2,3-Benzenetriol	50 KG	Jul 1, 2024

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Pyrogallol

Product Description

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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