2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol
C7H16S5
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Identification
- CAS Number
- 131538-00-6
- EC Number
- 411-290-7
- UN Number
- 3082
- Index Number
- 016-076-00-3
- PubChem CID
- 21900456
Physical-chemical properties
- Molecular Formula
- C7H16S5
- Molar Mass
- 260.50 g/mol
- IUPAC Name
- 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol
Chemical Identifiers
- InChI
- InChI=1S/C7H16S5/c8-1-3-11-6-7(5-10)12-4-2-9/h7-10H,1-6H2
- InChI Key
- CEUQYYYUSUCFKP-UHFFFAOYSA-N
Overview
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol (CAS 131538-00-6) is a pentasulfide organic compound characterized by multiple sulfur functional groups and significant chemical reactivity. This specialized organosulfur compound represents a unique class of multi-functional thiols containing five sulfur atoms within its molecular structure. With the molecular formula C7H16S5 and a molecular weight of 260.5 g/mol, this substance exhibits distinctive chemical properties due to its multiple sulfanyl groups positioned strategically along a propane backbone. The compound's structure features both terminal and bridging sulfur functionalities, making it particularly valuable for applications requiring sulfur-rich chemistry. From a safety perspective, 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol requires careful handling protocols due to its classification as Acute Tox. 4 and STOT RE 2, displaying the Warning signal word with GHS pictograms 07, 08, and 09. The compound also presents significant environmental concerns with Aquatic Acute 1 and Aquatic Chronic 1 classifications, necessitating proper containment and disposal procedures. Its ADR Class 9 designation indicates special handling requirements during transportation. Industrial applications of this pentasulfide compound primarily focus on specialized chemical synthesis processes, particularly in the development of sulfur-containing polymers and advanced materials. The compound serves as an important intermediate in the production of metal complexing agents and specialized catalysts. Unlike structurally simpler compounds such as 3-(4-chlorophenyl)-1-methoxy-1-methylurea, this multi-sulfur system offers unique cross-linking capabilities in polymer chemistry applications. OYSI maintains reliable supply chains for this specialized organosulfur compound, ensuring consistent availability for European industrial customers requiring high-purity chemical intermediates.
Safety & Classification
Acute Tox. 4 *; STOT RE 2 *; Aquatic Acute 1; Aquatic Chronic 1
GHS Pictograms
HHazard Statements (H-Statements)
Describe the nature and severity of the hazard
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
Ingestion
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 Number | 3082 |
| ADR Class | 9 |
| Packing Group | III |
| Tunnel Code | - |
| Proper Shipping Name | 2,3-Bis(2-mercaptoethylsulfanyl)propan-1-thiol |
| Marine Pollutant | No |
Frequently Asked Questions
What is 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol?
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol is an organosulfur compound with the molecular formula C7H16S5 and CAS number 131538-00-6. This chemical contains five sulfur atoms within its molecular structure, making it a polysulfide compound with a molecular weight of 260.5 g/mol. It belongs to the thiol family due to the presence of sulfhydryl (-SH) groups and exhibits characteristic properties associated with sulfur-containing organic compounds.
What are the physicochemical properties of 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol?
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol is a sulfur-rich organic compound with a molecular weight of 260.5 g/mol. As a polysulfide thiol, it typically exhibits the characteristic strong, unpleasant odor associated with sulfur compounds. The presence of multiple sulfur atoms and thiol groups influences its solubility characteristics and reactivity. Specific physical properties such as melting point, boiling point, and exact appearance may vary depending on purity and storage conditions.
What is 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol used for?
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol is primarily used in specialized industrial applications requiring organosulfur compounds. Its multiple thiol groups make it valuable as a cross-linking agent, vulcanization accelerator, or intermediate in chemical synthesis. The compound may be utilized in polymer chemistry, rubber processing, or as a building block for more complex sulfur-containing molecules. Applications typically involve professional industrial settings due to its hazardous classification and specialized nature.
How to handle 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol safely?
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol requires careful handling due to its Acute Tox. 4 and STOT RE 2 classifications. Personal protective equipment including chemical-resistant gloves, safety goggles, and appropriate respiratory protection must be worn. Work in well-ventilated areas or under fume extraction systems to prevent inhalation. Avoid skin and eye contact, and ensure emergency washing facilities are readily available. Handle only in controlled industrial environments with trained personnel familiar with hazardous chemical procedures.
How to store 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol correctly?
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Given its organosulfur nature, avoid contact with oxidizing agents and metals that may catalyze decomposition. Storage areas should be equipped with appropriate spill containment measures and emergency response equipment. Maintain proper inventory management and ensure containers are properly labeled according to GHS requirements including Warning signal word and appropriate pictograms.
What to do in case of contact with 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol?
In case of skin contact with 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol, immediately remove contaminated clothing and wash affected area thoroughly with soap and water for at least 15 minutes. For eye contact, rinse immediately with clean water for at least 15 minutes while holding eyelids open. If inhaled, move person to fresh air and seek medical attention if breathing difficulties occur. In case of ingestion, do not induce vomiting and seek immediate medical attention while providing safety data sheet information to medical personnel.
How to dispose of 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol properly?
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol must be disposed of according to local, national, and international hazardous waste regulations due to its toxicity and environmental hazard classifications. The compound cannot be disposed of with regular waste and requires specialized hazardous waste treatment facilities. Contact licensed waste disposal companies experienced in handling organosulfur compounds. Ensure proper documentation and chain of custody throughout the disposal process. Empty containers may also require special handling due to residual contamination.
How to transport 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol?
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol is classified as ADR Class 9 (Miscellaneous dangerous goods), Packing Group III for transportation purposes. This classification requires appropriate UN-specification packaging, proper labeling with Class 9 labels, and transport documentation including dangerous goods declaration. Vehicles must carry appropriate emergency response information and drivers require ADR certification. The relatively lower Packing Group III designation indicates moderate danger level but still requires full compliance with dangerous goods transport regulations.
Is 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol subject to specific regulations?
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol is subject to REACH registration requirements in Europe and must comply with CLP classification and labeling regulations. While not currently listed as an SVHC (Substance of Very High Concern), its hazard classifications require compliance with occupational exposure limits and environmental protection measures. The compound's Aquatic Acute 1 and Chronic 1 classifications impose restrictions on environmental releases. Industrial users must maintain safety data sheets and implement appropriate risk management measures as required by chemical safety regulations.
Where to buy 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol in Europe?
2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol is available through OYSI, a specialized European distributor of technical chemicals and industrial raw materials. OYSI provides this compound to qualified industrial customers with appropriate handling capabilities and regulatory compliance. As a professional chemical distributor, OYSI ensures proper packaging, documentation, and regulatory compliance for hazardous substances. Contact OYSI directly for availability, technical specifications, and pricing information for this specialized organosulfur compound, ensuring you have appropriate licenses and facilities for safe handling.
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2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol is a dangerous good. We support you with labeling, packaging, and transport documentation.
Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.