Dodecanethiol
- CAS Number
- 112-55-0
- HSN Code
- 29309070
- Molecular Formula
- C12H26S
- Catalogue Number
- AL1952
- Purity
- ≥ 98%
- Molecular Weight
- 202.41 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Lauryl mercaptan is an oily colorless liquid with a mild skunk odor. Freezing point 19 °F.
Also known as Lauryl mercaptan.
- Catalogue No.
- AL1952
- CAS Number
- 112-55-0
- Molecular Formula
- C12H26S
- Molecular Weight
- 202.41 g/mol
- HSN Code
- 29309070
- Grade
- 98% Extra Pure
- Product Form
- Substance
Melting point: -7 °C; Boiling point: BP: 142-145 °C @ 15 MM HG; Flash point: 262 °F (128 °C) (Open cup); Density: 0.8435 at 20 °C/20 °C; Solubility: Insol in water; sol in ethanol, ether, chloroform.
- Appearance
- Colorless, water-white, or pale-yellow, oily liquid [Note: A solid below 15 degrees F]
- Shelf Life
- -
- Packaging
- Available in: 500 ml glass bottle, 1 Lt glass bottle, 2.5 Lt glass bottle
- Storage
- Separated from strong oxidants.
1.1 — Product identifier
- Chemical Name
- Dodecanethiol
- Catalogue No.
- AL1952
- Product form
- Substance
- CAS Number
- 112-55-0
- EC Number
- 203-984-1
- Grade
- 98% Extra Pure
- EC Index Number
- Not specified
- Chemical Formula
- C12H26S
- HSN Code
- 29309070
- Synonyms
- Lauryl mercaptan
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Chain-transfer agent in polymer synthesis and self-assembled monolayer precursor.
- 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
- Skin Sens. 1A; Eye Dam. 1
- Classification source
- ECHA C&L Inventory via PubChem CID 8195 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Corrosive, Irritant
- Signal word
- Danger
- Hazard statements
- H317: May cause an allergic skin reaction; H318: Causes serious eye damage
2.3 — Other hazards
- Other hazards
- Corrosive and irritating to skin and eyes; may cause respiratory irritation.
3.1 — Substance
- Name
- Dodecanethiol
- CAS No.
- 112-55-0
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; may cause nausea 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 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. Wear appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Personal protection: self-contained breathing apparatus. Collect leaking and spilled liquid in sealable containers as far as possible. Carefully collect remainder.
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 eye protection.
- 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.
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
- Mild, skunk-like odor.
- Odour threshold
- Not specified
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not specified
- Melting point
- -7 °C
- Freezing point
- Not specified
- Boiling point
- BP: 142-145 °C @ 15 MM HG
- Flash point
- 262 °F (128 °C) (Open cup)
- Auto-ignition temperature
- Not specified
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Not applicable
- Vapour pressure
- 0.00853 mm Hg @ 20 °C
- Relative vapour density at 20°C
- Relative vapor density (air = 1): 7.0
- Density
- 0.8435 at 20 °C/20 °C
- Solubility
- Insol in water; sol in ethanol, ether, chloroform
- 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
- Stable under normal conditions; avoid strong oxidizing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- Decomposes on burning. This produces toxic gases. Reacts with strong oxidants.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizing agents, strong acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- When heated to decomposition it emits toxic fumes of sulfur oxides.
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Mouse oral 4225 mg/kg.; LD50 Mouse oralintravenous 316 mg/kg.
- Skin corrosion/irritation
- Not classified (based on available data)
- Serious eye damage/irritation
- H318: Causes serious eye damage
- Respiratory or skin sensitisation
- H317: May cause an allergic skin reaction
- 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 1760
- UN-No. (IMDG)
- UN 1760
- UN-No. (IATA)
- UN 1760
- UN-No. (ADN)
- UN 1760
- UN-No. (RID)
- UN 1760
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Dodecanethiol
- Proper Shipping Name (IMDG)
- Dodecanethiol
- Proper Shipping Name (IATA)
- Dodecanethiol
- Proper Shipping Name (ADN)
- Dodecanethiol
- Proper Shipping Name (RID)
- Dodecanethiol
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 8
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
Used as a chain-transfer agent in emulsion polymerization and as a capping ligand in gold-nanoparticle synthesis research.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL0654C
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 202.41 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 98% | 99.2% |
| Density | 0.845 g/mL | 0.845 g/mL |
| Boiling Point | 220 °C | 221 °C |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.1% | 0.05% |
| Related Substances | None detected | None detected |
The above product is expected to comply with 98% Extra Pure grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% Extra Pure | ≥ 98% | m.p. -7 °C; b.p. BP: 142-145 °C @ 15 MM HG | ≤ 0.5% | ≤ 0.1% | None detected | Insol in water; sol in ethanol, ether, chloroform |
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