Pyrocatechol
- CAS Number
- 120-80-9
- HSN Code
- 29072990
- Molecular Formula
- C6H4(OH)2
- Catalogue Number
- AL3873
- Purity
- 99% min
- Molecular Weight
- 110.11 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Catechol is a benzenediol comprising of a benzene core carrying two hydroxy substituents ortho to each other. It has a role as a genotoxin, an allelochemical and a plant metabolite.
Also known as 1,2-Dihydroxybenzene, Catechol.
- Catalogue No.
- AL3873
- CAS Number
- 120-80-9
- Molecular Formula
- C6H4(OH)2
- Molecular Weight
- 110.11 g/mol
- HSN Code
- 29072990
- Grade
- AR (Analytical Reagent)
- Product Form
- Substance
Melting point: 105 °C; Boiling point: 245.5 °C at 760 mm Hg; sublimes; Flash point: 260 °F (127 °C) (Closed cup); Density: 1.344; Solubility: In water, 4.61X10+5 mg/L at 25 °C.
- Appearance
- Monoclinic tablets, prisms from toluene its aqueous solutions soon turn brown
- Shelf Life
- 2 years
- Packaging
- Available in: 100 gm glass bottle, 500 gm glass bottle
- Storage
- 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.
1.1 — Product identifier
- Chemical Name
- Pyrocatechol
- Catalogue No.
- AL3873
- Product form
- Substance
- CAS Number
- 120-80-9
- EC Number
- 204-427-5
- Grade
- AR
- EC Index Number
- 604-007-00-8
- Chemical Formula
- C6H4(OH)2
- HSN Code
- 29072990
- Synonyms
- 1,2-Dihydroxybenzene, Catechol
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, chemical intermediate
- 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; Skin Irrit. 2; Eye Irrit. 2
- Classification source
- ECHA C&L Inventory via PubChem CID 289 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Irritant
- Signal word
- Warning
- Hazard statements
- H302: Harmful if swallowed; H312: Harmful in contact with skin; H315: Causes skin irritation; H319: Causes serious eye irritation
2.3 — Other hazards
- Other hazards
- May cause respiratory irritation; harmful if swallowed or in contact with skin.
3.1 — Substance
- Name
- Pyrocatechol
- CAS No.
- 120-80-9
4.1 — Description of first aid measures
- First-aid measures after inhalation
- If this chemical has been inhaled, remove the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the person warm and at rest.
- First-aid measures after skin contact
- If this chemical contacts the skin, immediately wash the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and wash the skin with water. If symptoms occur after washing, get medical attention immediately.
- First-aid measures after eye contact
- If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
- First-aid measures after ingestion
- If this chemical has been swallowed, get medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Symptoms of exposure may include headache, dizziness, and skin irritation.
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
- Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- On combustion, forms irritating fumes.
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
- Evacuate area and ventilate. Wear appropriate protective equipment.
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 in a fume hood. Avoid contact with skin and eyes.
- 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
- 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.
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
- Odour
- Faint characteristic odor
- Odour threshold
- Not established
- pH value
- 5-6
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 105 °C
- Freezing point
- Not applicable
- Boiling point
- 245.5 °C at 760 mm Hg; sublimes
- Flash point
- 260 °F (127 °C) (Closed cup)
- Auto-ignition temperature
- 510 °C
- Decomposition temperature
- Not established
- Flammability (solid, gas)
- Combustible
- Vapour pressure
- VP: 10 mm Hg at 118.3 °C
- Relative vapour density at 20°C
- 3.79 (Air = 1)
- Density
- 1.344
- Solubility
- In water, 4.61X10+5 mg/L at 25 °C
- Log Pow
- 0.88
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; may react with strong oxidizing agents.
10.2 — Chemical stability
- Chemical stability
- Discolors in air and light its aqueous solution soon turns brown.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- On combustion, forms toxic fumes. Reacts violently with oxidants. This generates fire and explosion hazard.
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
- Decomposition compounds: phenol derivatives, carbon oxides, irritating smokes.
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Rat oral 300 mg/kg; LD50 Mouse oral 260 mg/kg; LD50 Mouse ip 190 mg/kg
- Skin corrosion/irritation
- H315: Causes skin irritation
- Serious eye damage/irritation
- H319: Causes serious eye irritation
- Respiratory or skin sensitisation
- Not classified (based on available data)
- Germ cell mutagenicity
- Not classified (based on available data)
- 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)
- UN 2811
- UN-No. (IMDG)
- UN 2811
- UN-No. (IATA)
- UN 2811
- UN-No. (ADN)
- UN 2811
- UN-No. (RID)
- UN 2811
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Toxic solid, organic, n.o.s.
- Proper Shipping Name (IMDG)
- Toxic solid, organic, n.o.s.
- Proper Shipping Name (IATA)
- Toxic solid, organic, n.o.s.
- Proper Shipping Name (ADN)
- Toxic solid, organic, n.o.s.
- Proper Shipping Name (RID)
- Toxic solid, organic, n.o.s.
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1
14.4 — Packing group
- Packing group (ADR)
- III
- Packing group (IMDG)
- III
- Packing group (IATA)
- III
- Packing group (ADN)
- III
- Packing group (RID)
- III
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
PYROCATECHOL 99% AR is primarily used as an analytical-grade reference compound in chemical research, particularly in the fields of catechol and pharmaceutical intermediate chemistry. It serves as a precursor in the synthesis of various pharmaceuticals, agrochemicals, and dyes. Additionally, it is utilized in the production of antioxidants and as a reagent in organic synthesis. Its applications extend to the study of biochemical processes and the development of new materials in polymer chemistry.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1280A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 110.11 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 99% min | 99.5% |
| Melting Point | 104-106 °C | 105 °C |
| Moisture Content | 0.5% max | 0.3% |
| Residue on Ignition | 0.1% max | 0.05% |
| Related Substances | None detected | None detected |
| Solubility | Soluble in water, alcohol, and ether | Fully soluble in all tested solvents. |
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 | 99% min | m.p. 105 °C; b.p. 245.5 °C at 760 mm Hg; sublimes | 0.5% max | 0.1% max | None detected | In water, 4.61X10+5 mg/L at 25 °C |
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