Thiophenol
- CAS Number
- 108-98-5
- HSN Code
- 29309099
- Molecular Formula
- C6H6S
- Catalogue Number
- AL02569
- Purity
- ≥ 98%
- Molecular Weight
- 110.18 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Thiophenol (for synthesis) is a reactive aromatic thiol that serves as a crucial synthetic intermediate and radical-chain-transfer reagent in organic chemistry. It is characterized by its strong reactivity due to the presence of the thiol (-SH) functional group, which makes it valuable in various chemical reactions, including nucleophilic substitutions and the formation of thiol derivatives. With a purity of 98%, this grade of thiophenol is suitable for high-precision applications in research and industrial synthesis. Its notable properties include a strong disagreeable odor and a high level of toxicity, necessitating careful handling and storage.
Also known as Mercaptobenzene, Phenylthiol.
- Catalogue No.
- AL02569
- CAS Number
- 108-98-5
- Molecular Formula
- C6H6S
- Molecular Weight
- 110.18 g/mol
- HSN Code
- 29309099
- Grade
- 98%
- Product Form
- Substance
Thiophenol is a colorless to pale yellow liquid with a density of 1.073 g/mL. It has a boiling point of approximately 166 °C and a melting point of -8 °C. The compound is highly soluble in organic solvents such as ethanol and ether, but it has limited solubility in water. Its strong, disagreeable odor is characteristic of thiols, and it poses significant health risks if inhaled or ingested. The flash point of thiophenol is 60 °C, indicating its flammability, and it has a vapor pressure of 0.5 mmHg at 20 °C, which contributes to its volatility.
- Appearance
- Colorless to pale yellow liquid
- Shelf Life
- -
- Packaging
- -
- Storage
- Store in a cool, well-ventilated area away from sources of ignition and incompatible materials.
1.1 — Product identifier
- Chemical Name
- Thiophenol
- Catalogue No.
- AL02569
- Product form
- Substance
- CAS Number
- 108-98-5
- EC Number
- 203-634-0
- Grade
- 98%
- EC Index Number
- 608-001-00-2
- Chemical Formula
- C6H6S
- HSN Code
- 29309099
- Synonyms
- Mercaptobenzene, Phenylthiol
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as a synthetic intermediate and radical-chain-transfer reagent 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
2.3 — Other hazards
- Other hazards
- Highly toxic and flammable; may cause respiratory irritation and skin burns.
3.1 — Substance
- Name
- Thiophenol
- CAS No.
- 108-98-5
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If breathing is difficult, give oxygen. Seek medical attention immediately.
- First-aid measures after skin contact
- Remove contaminated clothing and wash skin thoroughly with soap and water. Seek medical attention if irritation persists.
- 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
- 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 headache, dizziness, nausea, vomiting, and respiratory distress.
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
- Flammable liquid; may produce toxic fumes in a fire.
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. Contain spill and prevent entry into waterways.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Absorb spill with inert material and place in a chemical waste container. Dispose of in accordance with local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle under a fume hood with appropriate PPE, including gloves and goggles. Avoid inhalation and skin contact.
- 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 cool, dry, well-ventilated area away from heat sources and 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
- Liquid
- Colour
- Colorless to pale yellow
- Odour
- Strong disagreeable odor
- Odour threshold
- Not specified
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not specified
- Melting point
- -8 °C
- Freezing point
- Not specified
- Boiling point
- 166 °C
- Flash point
- 60 °C
- Auto-ignition temperature
- Not specified
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Flammable liquid
- Vapour pressure
- 0.5 mmHg at 20 °C
- Relative vapour density at 20°C
- Not specified
- Density
- 1.073 g/mL
- Solubility
- Soluble in organic solvents, limited solubility in water
- Log Pow
- Not specified
- Viscosity, kinematic
- Not specified
- Viscosity, dynamic
- Not specified
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not specified
10.1 — Reactivity
- Reactivity
- Reacts with strong oxidizing agents and bases.
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, bases, and acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Highly toxic; LD50 (oral, rat) is approximately 100 mg/kg.
- Skin corrosion/irritation
- Causes severe skin burns and eye damage.
- Serious eye damage/irritation
- Causes serious eye damage.
- Respiratory or skin sensitisation
- May cause allergic skin reactions in sensitive individuals.
- 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)
- UN 2337
- UN-No. (IMDG)
- UN 2337
- UN-No. (IATA)
- UN 2337
- UN-No. (ADN)
- UN 2337
- UN-No. (RID)
- UN 2337
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Thiophenol
- Proper Shipping Name (IMDG)
- Thiophenol
- Proper Shipping Name (IATA)
- Thiophenol
- Proper Shipping Name (ADN)
- Thiophenol
- Proper Shipping Name (RID)
- Thiophenol
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1
14.4 — Packing group
- Packing group (ADR)
- I
- Packing group (IMDG)
- I
- Packing group (IATA)
- I
- Packing group (ADN)
- I
- Packing group (RID)
- I
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
Thiophenol is widely used in organic synthesis as a nucleophilic thiol reagent, where it participates in various chemical reactions, including the synthesis of thiol derivatives and the formation of disulfides. It is also employed as a radical chain-transfer agent in polymer chemistry, facilitating the production of polymers with specific properties. Additionally, thiophenol finds applications in the manufacture of pharmaceuticals, agrochemicals, and specialty chemicals, where its reactivity is harnessed to create complex molecular structures. Its role in research laboratories is significant, particularly in studies involving thiol chemistry and radical mechanisms.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL02569
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 110.18 g/mol
| Test | Standard | Observed |
|---|---|---|
| Description | Clear yellow liquid | Clear yellow liquid |
| Assay (BY GC) | Min. 98.0% | 98.47% |
| Wt /ml at 20°C | 1.077 - 1.079g | 1.078g |
The above product complies with LR grade
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% | ≥ 98% | -8 °C / 166 °C | ≤ 0.5% | ≤ 0.1% | None detected | Soluble in organic solvents |
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