(methyldisulfanyl)methane

C2H6S2

CAS624-92-0
GHS02 Gefahrensymbol: Entzündbar – Flamme
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
624-92-0
EC Number
210-871-0
UN Number
2381
Index Number
016-098-00-3
PubChem CID
12232

Physical-chemical properties

Molecular Formula
C2H6S2
Molar Mass
94.20 g/mol
IUPAC Name
(methyldisulfanyl)methane

Chemical Identifiers

InChI
InChI=1S/C2H6S2/c1-3-4-2/h1-2H3
InChI Key
WQOXQRCZOLPYPM-UHFFFAOYSA-N

Overview

(Methyldisulfanyl)methane (CAS 624-92-0) is an organosulfur compound with disulfide functionality and flammable liquid properties at standard conditions. This chemical substance, also known by its molecular formula C2H6S2, represents a simple aliphatic disulfide with a molecular weight of 94.2 g/mol. The compound features a characteristic sulfur-sulfur bond bridging two methyl groups, making it part of the broader family of organic disulfides used in various industrial applications. Its structure confers distinctive chemical reactivity, particularly in reactions involving sulfur chemistry and as a potential source of sulfur-containing intermediates. From a safety perspective, (methyldisulfanyl)methane requires careful handling due to its hazard classification profile. The substance is classified as a flammable liquid (Category 2) and exhibits acute toxicity (Category 3), necessitating appropriate fire prevention measures and personal protective equipment during use. Additional safety concerns include potential skin sensitization, eye irritation, and specific target organ toxicity. The compound's ADR classification as Class 3 indicates requirements for specialized transport and storage conditions. Environmental considerations are also important, as indicated by its aquatic toxicity classification. Industrial applications of this organosulfur compound typically involve its use as a chemical intermediate in synthesis processes, particularly in the production of other sulfur-containing compounds. It may also find utility in specialized chemical manufacturing processes where disulfide functionality is required. Unlike simpler compounds such as prop-2-enenitrile, (methyldisulfanyl)methane offers unique reactivity patterns due to its sulfur-sulfur bond. OYSI provides (methyldisulfanyl)methane to European industrial customers with comprehensive technical documentation and regulatory compliance support.

Safety & Classification

Danger
Classification:

Flam. Liq. 2; Acute Tox. 3; Acute Tox. 3; STOT SE 3; STOT SE 1; Eye Irrit. 2; Skin Sens. 1; Aquat...

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H225

Highly flammable liquid and vapour.

H331

Toxic if inhaled.

H301

Toxic if swallowed.

H336

May cause drowsiness or dizziness.

H370

Causes damage to organs.

H319

Causes serious eye irritation.

H317

May cause an allergic skin reaction.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Toxic

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

Skin Contact

Irritant

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Eye Contact

Irritant

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Toxic

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number2381
ADR Class3
Packing GroupII
Tunnel CodeD/E
Proper Shipping NameDimethyldisulfid
Marine PollutantNo

Frequently Asked Questions

What is (methyldisulfanyl)methane?

(Methyldisulfanyl)methane is an organosulfur compound with the molecular formula C2H6S2 and CAS number 624-92-0. This chemical substance has a molecular weight of 94.2 g/mol and contains two sulfur atoms connected by a disulfide bond with methyl groups attached to each sulfur. It is classified as a hazardous substance with multiple danger classifications including flammable liquid, acute toxicity, and specific target organ toxicity. The compound requires careful handling due to its significant health and safety risks.

What are the physicochemical properties of (methyldisulfanyl)methane?

(Methyldisulfanyl)methane is a flammable liquid at room temperature with characteristic organosulfur compound properties. The molecule contains a disulfide bridge (-S-S-) linking two methylthio groups, giving it distinctive chemical reactivity. As an organosulfur compound, it typically exhibits a strong, unpleasant odor characteristic of sulfur-containing molecules. The compound's flammable liquid classification indicates it has a relatively low flash point, requiring careful handling around ignition sources and proper ventilation during use.

What is (methyldisulfanyl)methane used for?

(Methyldisulfanyl)methane serves as an important intermediate in organic synthesis and chemical manufacturing processes. The compound is primarily used in the production of other sulfur-containing chemicals and as a building block for more complex organosulfur compounds. Its disulfide functionality makes it valuable in various industrial applications where sulfur chemistry is required. The substance may also find applications in specialized chemical processes where its unique reactivity profile is beneficial for specific synthetic transformations.

How to handle (methyldisulfanyl)methane safely?

(Methyldisulfanyl)methane requires strict safety protocols due to its multiple hazard classifications including acute toxicity and specific target organ toxicity. Personnel must wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection when handling this substance. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Given its flammable nature, eliminate all ignition sources and use explosion-proof equipment. Regular safety training and adherence to established handling procedures are essential.

How to store (methyldisulfanyl)methane correctly?

(Methyldisulfanyl)methane must be stored in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames due to its flammable liquid classification. The substance should be kept in tightly sealed, compatible containers to prevent contamination and vapor release. Storage areas must comply with flammable liquid storage regulations and be equipped with appropriate fire suppression systems. Regular container inspection is necessary to ensure integrity, and inventory should follow first-in-first-out principles to maintain product quality.

What to do in case of contact with (methyldisulfanyl)methane?

Immediate action is required following contact with (methyldisulfanyl)methane due to its acute toxicity and irritant properties. For skin contact, remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15-20 minutes and remove contact lenses if present. If inhaled, move the person to fresh air immediately. For ingestion, do not induce vomiting and seek medical attention immediately. Always consult emergency services for serious exposures.

How to dispose of (methyldisulfanyl)methane properly?

(Methyldisulfanyl)methane must be disposed of through licensed hazardous waste disposal facilities in accordance with local, national, and EU waste regulations. The substance cannot be disposed of in regular waste streams due to its hazardous properties and environmental impact potential. Waste containers must be properly labeled and segregated from incompatible materials. Documentation requirements include waste tracking forms and certificates of disposal. Consider recovery or recycling options where technically and economically feasible before disposal to minimize environmental impact.

How to transport (methyldisulfanyl)methane?

(Methyldisulfanyl)methane is classified as ADR Class 3 (Flammable Liquids), Packing Group II, requiring compliance with dangerous goods transportation regulations. Transport must use UN-approved packaging and vehicles equipped for hazardous materials transport. Proper shipping documentation, emergency response information, and hazard placarding are mandatory. Drivers must hold ADR certification for dangerous goods transport. The substance requires segregation from incompatible materials during transport and adherence to routing restrictions where applicable. Emergency response equipment must be available during transport.

Is (methyldisulfanyl)methane subject to specific regulations?

(Methyldisulfanyl)methane falls under EU REACH regulation requiring registration for manufacture or import above specified tonnages. The substance must comply with CLP regulation for classification, labeling, and packaging based on its hazard profile. While not currently listed as an SVHC (Substance of Very High Concern), its multiple hazard classifications require strict compliance with occupational exposure limits and safety data sheet requirements. Users must ensure proper risk assessment and implementation of appropriate risk management measures throughout the supply chain.

Where to buy (methyldisulfanyl)methane in Europe?

(Methyldisulfanyl)methane is available through specialized chemical distributors across Europe, with OYSI serving as a reliable European supplier for this substance. As an established chemical distributor, OYSI can provide the necessary documentation including safety data sheets, certificates of analysis, and regulatory compliance information. Professional chemical suppliers ensure proper packaging, labeling, and transport arrangements for hazardous materials like this compound. Contact qualified distributors directly to discuss specific requirements, quantities, and technical specifications for your application needs.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.