Chemical Product Identification & Regulatory Data
Official chemical identifiers, CAS numbers, and regulatory compliance information
Basic Product Information
Regulatory Identifiers
Chemical Abstracts Service registry number - unique identifier for chemical substances
Uses Information
Overview
Methanethiol is a colourless substance commonly used laboratory chemicals, synthesis of substances.
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GHS Hazard Classification & Safety Warnings
Globally Harmonized System (GHS) hazard pictograms, signal words, and safety classifications
Classification Status
Signal Word
Hazard Classifications
GHS Hazard Pictograms & Safety Symbols
GHS02
GHS04
GHS06
GHS (Globally Harmonized System) pictograms indicate specific chemical hazard categories and safety precautions
Hazard Statements
- H220: Extremely flammable gas.
- H280: Contains gas under pressure; may explode if heated.
- H331: Toxic if inhaled.
Precautionary Statements
- P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
- P261: Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray.
- P271: Use only outdoors or in a well-ventilated area.
- IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor.
- P377: Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
- P381: Eliminate all ignition sources if safe to do so.
- Store in a well-ventilated place. Keep container tightly closed.
- P405: Store locked up.
- Protect from sunlight. Store in a well-ventilated place.
- P501: Dispose of contents/ container to an approved waste disposal plant.
Chemical Manufacturers & Supply Chain
Authorized suppliers, manufacturers, and distribution network information
Sigma-Aldrich
manufacturer
3050 Spruce Street SAINT LOUIS MO 63103 USA
US
+1 800-325-5832
+1 800-325-5052
24/7 Emergency Response & Poison Control
Critical emergency contact numbers for chemical spills, exposure incidents, and medical emergencies
CHEMTREC
+1-703-527-3887
US
Chemical Composition & Hazardous Ingredients
Detailed component analysis, concentration ranges, and hazardous substance identification
Chemical Components & Hazardous Substances
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| Methanethiol EC: 200-822-1 | 74-93-1 | 90-100% | ⚠️ Hazardous |
Emergency First Aid Measures
Critical first aid procedures for chemical exposure incidents and medical emergencies
🫁 Inhalation Exposure
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
🖐️ Skin Contact
Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician.
👁️ Eye Contact
Flush eyes with water as a precaution.
🍽️ Ingestion/Swallowing
Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
Fire Fighting Measures & Emergency Response
Fire suppression methods, extinguishing media, and firefighting safety procedures
✅ Suitable Extinguishing Media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
🔥 Fire Fighting Instructions
Wear self-contained breathing apparatus for firefighting if necessary.
Accidental Release Measures & Spill Response
Emergency spill cleanup procedures, containment methods, and environmental protection
🚨 Emergency Procedures
Evacuate personnel to safe areas. Ensure adequate ventilation. Remove all sources of ignition.
🌍 Environmental Precautions
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
Related Chemical Substances & Alternative Products
Similar chemicals with comparable safety profiles and industrial applications
Technical Specifications & Material Properties
Physical state, chemical properties, melting point, boiling point, and material characteristics
Safe Handling & Storage Procedures
Industrial handling precautions, storage conditions, and workplace safety requirements
⚠️ Handling Precautions
• Avoid contact with skin and eyes.
• Avoid inhalation of vapour or mist.
• Use explosion-proof equipment.
• Keep away from sources of ignition - No smoking.
• Take measures to prevent the build up of electrostatic charge.
🏪 Storage Conditions
• Keep container tightly closed in a dry and well-ventilated place.
• Stench.
• Contents under pressure.
Exposure Controls & Personal Protective Equipment (PPE)
Occupational exposure limits, engineering controls, and required safety equipment
🏭 Engineering Controls
Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling the product.
🧤 Hand Protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. Splash contact Material: Fluorinated rubber Minimum layer thickness: 0.7 mm Break through time: 30 min Material tested: Vitoject® (KCL 890 / Aldrich Z677698, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail [email protected], test method: EN374 If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
👁️ Eye Protection
Face shield and safety glasses Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
😷 Respiratory Protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type AXBEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
🦺 Skin/Body Protection
Complete suit protecting against chemicals, Flame retardant antistatic protective clothing., The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
🌍 Environmental Exposure Controls
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
Chemical Stability & Reactivity Data
Chemical stability, hazardous reactions, and incompatible materials information
✅ Chemical Stability
Stable under recommended storage conditions.
🚫 Conditions to Avoid
Heat, flames and sparks.
🧪 Incompatible Materials
Strong reducing agents, Halogenated hydrocarbon, Organic materials, Zinc, Copper
💨 Hazardous Decomposition Products
Hazardous decomposition products formed under fire conditions. - Carbon oxides, Sulphur oxides
Ecological Information & Environmental Impact
Environmental toxicity, biodegradation, bioaccumulation, and ecological effects data
🌱 12.1 Toxicity
🌱 12.2 Persistence and degradability
🌱 12.3 Bioaccumulative potential
🌱 12.4 Mobility in soil
🌱 12.5 Results of PBT and vPvB assessment
🌱 12.6 Other adverse effects
Waste Disposal & Treatment Methods
Waste disposal procedures, treatment methods, and regulatory compliance requirements
♻️ Waste Treatment Methods
Offer surplus and non-recyclable solutions to a licensed disposal company. Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting as this material is highly flammable. Contact a licensed professional waste disposal service to dispose of this material.
🗂️ Product Disposal Recommendations
Contact a licensed professional waste disposal service to dispose of this material.
Transportation & Shipping Information
UN numbers, shipping names, transport classes, and regulatory transport requirements
🏷️ UN Number
1064
📦 Proper Shipping Name
Methyl mercaptan
⚠️ Transport Hazard Class
2.3 (2.1)
Chemical Safety FAQ & Common Questions
Most frequently asked questions about safety, handling, storage, and regulatory compliance
What is the hazard signal word for Methanethiol?
The signal word for this substance is "danger".
What is the physical form of Methanethiol?
Methanethiol is a liquefied gas appearing as colourless with colourless color. It has no data available odor.
What is the solubility of Methanethiol?
No data available
What is Methanethiol used for?
Laboratory chemicals, Synthesis of substances
What are the hazard statements for Methanethiol?
This substance has 3 hazard statements: H220: Extremely flammable gas. H280: Contains gas under pressure; may explode if heated. H331: Toxic if inhaled.
What is the melting point of Methanethiol?
The melting point is -123 ℃ (-189 ºF) and the boiling point is 6 °℃ (43 ºF).