Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- Methyl sulfoxide
- Product Code
- AC610970000, AC610971000
- Synonyms
- Dimethyl sulfoxide; DMSO
Regulatory Identifiers
- CAS Number
- 67-68-5 Check regulations →
Identified Uses
Laboratory chemicals.
Uses advised against
Food, drug, pesticide or biocidal product use.
Manufacturers & Suppliers
Fisher Scientific Company
manufacturer
One Reagent Lane, Fair Lawn, NJ 07410
(201) 796-7100
Acros Organics
manufacturer
One Reagent Lane, Fair Lawn, NJ 07410
Emergency Contacts
Emergency Contact
001-800-227-6701
Emergency Contact
+32 14 57 52 11
Emergency Contact
001-201-796-7100
Emergency Contact
+32 14 57 52 99
CHEMTREC
001-800-424-9300
CHEMTREC
001-703-527-3887
Hazard Identification
GHS classification, signal word, pictograms, and hazard statements
Hazard Classifications
GHS Pictograms
Hazard Statements
Precautionary Statements
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Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| Dimethyl sulfoxide | 67-68-5 | 100% | No |
First Aid Measures
Emergency procedures for chemical exposure incidents
Remove to fresh air. Get medical attention immediately if symptoms occur. If not breathing, give artificial respiration.
Wash off immediately with plenty of water for at least 15 minutes. Get medical attention immediately if symptoms occur.
Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention.
Do NOT induce vomiting. Get medical attention.
Immediate Medical Attention
Get medical attention immediately if symptoms occur.
Medical Treatment
Treat symptomatically
Firefighting Measures
Extinguishing media, specific hazards, and firefighter protection
Water spray, carbon dioxide (CO2), dry chemical, alcohol-resistant foam. Water mist may be used to cool closed containers.
No information available
Combustible material. Containers may explode when heated. Thermal decomposition can lead to release of irritating gases and vapors.
Firefighter Protection
As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.
Accidental Release Measures
Spill cleanup procedures, containment, and environmental protection
Should not be released into the environment.
Soak up with inert absorbent material. Keep in suitable, closed containers for disposal.
Materials: inert absorbent material
Related Products
Similar products with comparable safety profiles
Handling and Storage
Safe handling precautions, storage conditions, and workplace requirements
Wear personal protective equipment/face protection. Ensure adequate ventilation. Keep away from open flames, hot surfaces and sources of ignition. Avoid contact with skin, eyes or clothing. Avoid ingestion and inhalation.
Keep containers tightly closed in a dry, cool and well-ventilated place. Keep away from heat, sparks and flame.
Avoid contact with skin, eyes or clothing. Avoid ingestion and inhalation.
Keep away from open flames, hot surfaces and sources of ignition.
Exposure Controls / PPE
Occupational exposure limits, engineering controls, and protective equipment
Ensure adequate ventilation, especially in confined areas. Ensure that eyewash stations and safety showers are close to the workstation location.
Wear appropriate protective gloves
Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Recommended Filter type: Particle filter.
Wear appropriate protective clothing to prevent skin exposure.
Physical and Chemical Properties
Appearance, physical state, melting point, boiling point, and material characteristics
Stability and Reactivity
Chemical stability, hazardous reactions, and incompatible materials
Hygroscopic.
None known, based on information available
Hazardous polymerization does not occur. Thermal decomposition can take place above 189°C / 372°F.
Incompatible products. Excess heat. Exposure to moist air or water. Keep away from open flames, hot surfaces and sources of ignition.
Strong oxidizing agents, Strong acids, Strong bases, Alkali metals
Carbon monoxide (CO), Carbon dioxide (CO2), Sulfur oxides, Sulfides, Formaldehyde
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
12.1 Toxicity
Persistence and degradability
Bioaccumulative potential
Mobility in soil
12.3 Bioaccumulative potential
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste.
Transport Information
UN numbers, shipping names, transport classes, and regulatory requirements
- UN Number
- NA1993
- Shipping Name
- Combustible liquid, n.o.s.
- Packing Group
- III
Regulatory Information
Chemical regulations, safety assessments, and compliance status
Frequently Asked Questions
Common questions about safety, handling, and properties
What other names is Methyl sulfoxide known by?
Methyl sulfoxide is also known as: Dimethyl sulfoxide; DMSO
What is the hazard signal word for Methyl sulfoxide?
The signal word is warning.
What is the physical form of Methyl sulfoxide?
Methyl sulfoxide is a liquid with colorless color. It has odorless odor.
What is Methyl sulfoxide used for?
Laboratory chemicals.
What are the hazard statements for Methyl sulfoxide?
This substance has 1 hazard statement:
- H227: Combustible liquid
What is the melting point of Methyl sulfoxide?
The melting point is 18.4 °C / 65.1 °F and the boiling point is 189 °C / 372.2 °F.