p-Benzoquinone
- CAS Number
- 106-51-4
- HSN Code
- 29146990
- Molecular Formula
- C6H4O2
- Catalogue Number
- AL0628
- Purity
- ≥ 99%
- Molecular Weight
- 108.10 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
1,4-benzoquinone is the simplest member of the class of 1,4-benzoquinones, obtained by the formal oxidation of hydroquinone to the corresponding diketone. It is a metabolite of benzene.
Also known as 1,4-Benzoquinone, p-Quinone.
- Catalogue No.
- AL0628
- CAS Number
- 106-51-4
- Molecular Formula
- C6H4O2
- Molecular Weight
- 108.10 g/mol
- HSN Code
- 29146990
- Grade
- 99% For Synthesis
- Product Form
- Substance
Melting point: 115.7 °C; Boiling point: ~180 °C; Flash point: 293 °C; Density: 1.318 AT 20 °C/4 °C; Solubility: > 10% in ether.
- Appearance
- Greenish-yellowish solid
- Shelf Life
- 2 years
- Packaging
- Available in: 100 gm glass bottle, 250 gm glass bottle
- Storage
- Fireproof. Separated from combustible substances, reducing agents and food and feedstuffs. Cool. Dry.
1.1 — Product identifier
- Chemical Name
- p-Benzoquinone
- Catalogue No.
- AL0628
- Product form
- Substance
- CAS Number
- 106-51-4
- EC Number
- 203-405-2
- Grade
- 99% For Synthesis
- EC Index Number
- 606-002-00-3
- Chemical Formula
- C6H4O2
- HSN Code
- 29146990
- Synonyms
- 1,4-Benzoquinone, p-Quinone
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Oxidizing agent in organic synthesis
- 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. 3; Skin Irrit. 2; Eye Irrit. 2; STOT SE 3; Aquatic Acute 1
- Classification source
- ECHA C&L Inventory via PubChem CID 4650 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Acute Toxic, Environmental Hazard
- Signal word
- Danger
- Hazard statements
- H301: Toxic if swallowed; H315: Causes skin irritation; H319: Causes serious eye irritation; H331: Toxic if inhaled; H335: May cause respiratory irritation; H400: Very toxic to aquatic life
2.3 — Other hazards
- Other hazards
- Strong irritant; may cause respiratory irritation.
3.1 — Substance
- Name
- p-Benzoquinone
- CAS No.
- 106-51-4
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 soap and water. If this chemical penetrates the clothing, immediately remove the clothing, wash the skin with soap and water, and get medical attention promptly.
- 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
- Irritation of eyes, skin, and respiratory tract; headache; nausea.
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
- Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.
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. Wear appropriate protective equipment. Contain and collect spillage.
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 in a fume hood. Use gloves and goggles. 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
- Fireproof. Separated from combustible substances, reducing agents and food and feedstuffs. Cool. Dry.
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
- Bright yellow
- Odour
- Acrid, chlorine-like odor.
- Odour threshold
- No data available
- pH value
- No data available
- Relative evaporation rate (butylacetate=1)
- No data available
- Melting point
- 115.7 °C
- Freezing point
- No data available
- Boiling point
- ~180 °C
- Flash point
- 293 °C
- Auto-ignition temperature
- 1040 °F (560 °C)
- Decomposition temperature
- No data available
- Flammability (solid, gas)
- Not flammable under normal conditions
- Vapour pressure
- 0.1 MM HG AT 25 °C
- Relative vapour density at 20°C
- 3.7 (Air= 1)
- Density
- 1.318 AT 20 °C/4 °C
- Solubility
- > 10% in ether
- Log Pow
- Log Kow = 0.20
- Viscosity, kinematic
- No data available
- Viscosity, dynamic
- No data available
- Explosive properties
- Not explosive
- Oxidising properties
- Strong oxidizer
- Explosive limits
- No data available
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; reacts with strong reducing agents.
10.2 — Chemical stability
- Chemical stability
- May darken on standing.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- Decomposes above 60 °C when moist. This produces carbon monoxide. The substance is a weak oxidant.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong reducing agents, strong acids, and bases.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Rat oral 130 mg/kg; LD50 Rat iv 25 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)
- H335: May cause respiratory irritation
- 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)
- 2587
- UN-No. (IMDG)
- 2587
- UN-No. (IATA)
- 2587
- UN-No. (ADN)
- 2587
- UN-No. (RID)
- 2587
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- p-Benzoquinone
- Proper Shipping Name (IMDG)
- p-Benzoquinone
- Proper Shipping Name (IATA)
- p-Benzoquinone
- Proper Shipping Name (ADN)
- p-Benzoquinone
- Proper Shipping Name (RID)
- p-Benzoquinone
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1
14.4 — Packing group
- Packing group (ADR)
- II
- Packing group (IMDG)
- II
- Packing group (IATA)
- II
- Packing group (ADN)
- II
- Packing group (RID)
- II
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
Used as an oxidizing agent in organic synthesis, particularly in dehydrogenation reactions, and as a polymerization inhibitor.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL00252
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 108.10 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | Brownish yellow crystalline powder which darkens on storage | Brownish yellow crystalline powder which darkens on storage |
| Assay | Min.) 99% | 99.52% |
| Melting point | 110-113°C | 111.5°C |
The above product complies with LR grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 99% For Synthesis | ≥ 99% | m.p. 115.7 °C; b.p. ~180 °C | ≤ 0.5% | ≤ 0.1% | None detected | > 10% in ether |
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“Speedy delivery, professional staff.”
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