Pyrogallol
- CAS Number
- 87-66-1
- HSN Code
- 29072990
- Molecular Formula
- C6H6O3
- Catalogue Number
- AL3874
- Purity
- ≥ 98%
- 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 is a benzenetriol carrying hydroxy groups at positions 1, 2 and 3. It has a role as a plant metabolite.
Also known as Pyrogallic acid, 1,2,3-Trihydroxybenzene.
- Catalogue No.
- AL3874
- CAS Number
- 87-66-1
- Molecular Formula
- C6H6O3
- Molecular Weight
- 126.11 g/mol
- HSN Code
- 29072990
- Grade
- 98%
- Product Form
- Substance
Melting point: 133 °C; Boiling point: 309 °C; Density: 1.453 g/cu cm at 4 °C; Solubility: Very soluble in ethanol, diethyl ether.
- Appearance
- White, lustrous crystals or plates
- Shelf Life
- 2 years
- Packaging
- Available in: 25 gm glass bottle, 100 gm glass bottle, 500 gm glass bottle
- Storage
- Separated from strong oxidants and strong bases.
1.1 — Product identifier
- Chemical Name
- Pyrogallol
- Catalogue No.
- AL3874
- Product form
- Substance
- CAS Number
- 87-66-1
- EC Number
- 201-762-9
- Grade
- 98%
- EC Index Number
- 604-007-00-8
- Chemical Formula
- C6H6O3
- HSN Code
- 29072990
- Synonyms
- Pyrogallic acid, 1,2,3-Trihydroxybenzene
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used in photography, as a reagent in chemical synthesis, and as an oxygen absorber.
- 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
2.1 — Classification of the substance or mixture
- Classification according to Regulation (EC) No 1272/2008
- Acute Tox. 4; Muta. 2; Aquatic Chronic 3
- Classification source
- ECHA C&L Inventory via PubChem CID 1057 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Irritant, Health Hazard
- Signal word
- Warning
- Hazard statements
- 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
2.3 — Other hazards
- Other hazards
- May cause skin and eye irritation; harmful if ingested or inhaled.
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
- IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water.
- First-aid measures after eye contact
- First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Symptoms of exposure may include irritation of the skin, eyes, and respiratory tract.
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
- Emits toxic vapors when heated.
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
- Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with gloves and avoid inhalation of dust. Use in a well-ventilated area.
- 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
- Separated from strong oxidants and strong bases.
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 dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White to pale gray
- Odour
- Odorless
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 133 °C
- Freezing point
- Not applicable
- Boiling point
- 309 °C
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Combustible
- Vapour pressure
- 4.79X10-4 mm Hg at 25 °C extrapolated
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.453 g/cu cm at 4 °C
- Solubility
- Very soluble in ethanol, diethyl ether
- Log Pow
- 0.970 (estimated)
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not applicable
- Oxidising properties
- Not applicable
- Explosive limits
- Not applicable
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
- The solution in water is a weak acid. Reacts with oxidants and bases.
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
- When heated to decomposition it emits acrid smoke and irritating fumes.
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Mouse oral 300 mg/kg; LD50 Mouse ip 400 mg/kg; LD50 Mouse sc 566 mg/kg
- Skin corrosion/irritation
- Not classified (based on available data)
- Serious eye damage/irritation
- Not classified (based on available data)
- Respiratory or skin sensitisation
- Not classified (based on available data)
- Germ cell mutagenicity
- H341: Suspected of causing genetic defects
- Carcinogenicity
- Not classified (based on available data)
- Specific target organ toxicity (single exposure)
- Not classified (based on available data)
- Specific target organ toxicity (repeated exposure)
- Not classified (based on available data)
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 assigned
- UN-No. (IMDG)
- Not assigned
- UN-No. (IATA)
- Not assigned
- UN-No. (ADN)
- Not assigned
- UN-No. (RID)
- Not assigned
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Not classified as dangerous goods
- Proper Shipping Name (IMDG)
- Not classified as dangerous goods
- Proper Shipping Name (IATA)
- Not classified as dangerous goods
- Proper Shipping Name (ADN)
- Not classified as dangerous goods
- Proper Shipping Name (RID)
- Not classified as dangerous goods
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 various applications, including as an oxygen-absorbing reagent in anaerobic culture systems, which are essential in microbiology for studying anaerobic organisms. It has historical significance as a photographic developer, particularly in black and white photography, where it was used to develop film and prints. Additionally, pyrogallol is utilized in chemical synthesis and as a reducing agent in various organic reactions, making it valuable in both academic and industrial laboratories.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1280B
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 126.11 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 98% | 99.5% |
| Melting Point | 132-135 °C | 133 °C |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.1% | 0.05% |
| Related Substances | None detected | None detected |
| Solubility | Soluble in water | Fully soluble in water at 20 °C |
The above product is expected to comply with 98% grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% | ≥ 98% | m.p. 133 °C; b.p. 309 °C | ≤ 0.5% | ≤ 0.1% | None detected | Very soluble in ethanol, diethyl ether |
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