Pyrogallol
- CAS Number
- 87-66-1
- HSN Code
- 29072990
- Molecular Formula
- C6H6O3
- Catalogue Number
- AL01281
- Purity
- 98.5% min
- Molecular Weight
- 126.11 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
PYROGALLOL 98.5% AR is a high-purity analytical reagent known for its precise control over purity levels, making it suitable for sensitive analytical applications. This compound, with the CAS number 87-66-1, is a trihydroxybenzene derivative, specifically a dihydroxy derivative of phenol. Its notable properties include its ability to act as a reducing agent and its application in various chemical analyses. Pyrogallol is particularly valued in laboratories for its role in oxygen absorption and as a reagent in gas analysis, contributing to its importance in research and industrial settings.
Also known as 1,2,3-Benzenetriol; Pyrogallic acid.
- Catalogue No.
- AL01281
- CAS Number
- 87-66-1
- Molecular Formula
- C6H6O3
- Molecular Weight
- 126.11 g/mol
- HSN Code
- 29072990
- Grade
- AR (Analytical Reagent)
- Product Form
- Substance
Pyrogallol appears as a white to pale gray crystalline solid that is hygroscopic and darkens rapidly upon exposure to air due to oxidation. It has a melting point of approximately 132-135 °C and a boiling point of around 200 °C. The density of pyrogallol is about 1.3 g/cm³, and it is soluble in water, alcohol, and ether, which enhances its utility in various chemical applications. The compound has a characteristic phenolic odor, which can be detected at low concentrations.
- Appearance
- White to pale gray crystalline solid
- Shelf Life
- 2 years
- Packaging
- Available in 100 g and 500 g glass bottles
- Storage
- Store in a cool, dry place, away from light and moisture.
1.1 — Product identifier
- Chemical Name
- Pyrogallol
- Catalogue No.
- AL01281
- Product form
- Substance
- CAS Number
- 87-66-1
- EC Number
- 201-964-5
- Grade
- AR
- EC Index Number
- 604-003-00-2
- Chemical Formula
- C6H6O3
- HSN Code
- 29072990
- Synonyms
- 1,2,3-Benzenetriol; Pyrogallic acid
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, reducing agent, oxygen-absorbing reagent
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.3 — Other hazards
- Other hazards
- May cause respiratory irritation; harmful if swallowed or in contact with skin.
3.1 — Substance
- Name
- Pyrogallol
- CAS No.
- 87-66-1
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If symptoms persist, seek medical attention.
- First-aid measures after skin contact
- Wash with soap and water. If irritation occurs, seek medical attention.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and seek medical attention.
- First-aid measures after ingestion
- Rinse mouth. Do not induce vomiting. Seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Irritation of the respiratory tract, skin, and eyes; potential for systemic toxicity if ingested.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Water spray, carbon dioxide, dry chemical powder, foam.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Combustible material; may produce toxic fumes when burned.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Contain spill and collect using appropriate protective equipment. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate personal protective equipment. Absorb spill with inert material and place in a chemical waste container.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Avoid contact with skin and eyes. Use in a well-ventilated area and wear appropriate protective gloves and eyewear.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Store in a tightly closed container in a cool, dry place, away from incompatible materials.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if ventilation is inadequate.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White to pale gray
- Odour
- Characteristic phenolic
- Odour threshold
- No data available
- pH value
- No data available
- Relative evaporation rate (butylacetate=1)
- No data available
- Melting point
- 132-135 °C
- Freezing point
- No data available
- Boiling point
- 200 °C
- Flash point
- No data available
- Auto-ignition temperature
- No data available
- Decomposition temperature
- No data available
- Flammability (solid, gas)
- Combustible
- Vapour pressure
- No data available
- Relative vapour density at 20°C
- No data available
- Density
- 1.3 g/cm³
- Solubility
- Soluble in water, alcohol, and ether
- Log Pow
- No data available
- Viscosity, kinematic
- No data available
- Viscosity, dynamic
- No data available
- Explosive properties
- No data available
- Oxidising properties
- No data available
- Explosive limits
- No data available
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; may react with strong oxidizing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- No dangerous reactions known under normal conditions of use.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizers, strong acids, and bases.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if swallowed; may cause skin and eye irritation.
- Skin corrosion/irritation
- Causes skin irritation.
- Serious eye damage/irritation
- Causes serious eye irritation.
- Respiratory or skin sensitisation
- May cause an allergic skin reaction.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- May cause respiratory irritation.
- Specific target organ toxicity (repeated exposure)
- Not classified
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- Not classified as dangerous goods.
- UN-No. (IMDG)
- Not classified as dangerous goods.
- UN-No. (IATA)
- Not classified as dangerous goods.
- UN-No. (ADN)
- Not classified as dangerous goods.
- UN-No. (RID)
- Not classified as dangerous goods.
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Not applicable
- Proper Shipping Name (IMDG)
- Not applicable
- Proper Shipping Name (IATA)
- Not applicable
- Proper Shipping Name (ADN)
- Not applicable
- Proper Shipping Name (RID)
- Not applicable
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- Not applicable
14.4 — Packing group
- Packing group (ADR)
- Not applicable
- Packing group (IMDG)
- Not applicable
- Packing group (IATA)
- Not applicable
- Packing group (ADN)
- Not applicable
- Packing group (RID)
- Not applicable
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Pyrogallol is widely used in analytical chemistry as a reagent for oxygen absorption in anaerobic culture studies and gas analysis research. It serves as a reducing agent in various chemical reactions and is utilized in the preparation of pyrogallol-based dyes and pharmaceuticals. Additionally, it finds applications in the production of photographic developers and in the synthesis of other organic compounds. Its role in the determination of phenolic compounds and as an antioxidant in food chemistry further underscores its versatility across different industries.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01281
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 126.11 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 98.5% min | 98.7% |
| Moisture Content | 0.5% max | 0.3% |
| Residue on Ignition | 0.1% max | 0.05% |
| Related Substances | None detected | None detected |
The above product is expected to comply with AR grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR | 98.5% min | 132-135 °C | 0.5% max | 0.1% max | None detected | Soluble in water, alcohol, and ether |
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