2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole

C14H8N2S4

CAS120-78-5
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
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Identification

CAS Number
120-78-5
EC Number
204-424-9
UN Number
3077
Index Number
613-135-00-0
PubChem CID
8447

Physical-chemical properties

Molecular Formula
C14H8N2S4
Molar Mass
332.50 g/mol
IUPAC Name
2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole

Chemical Identifiers

InChI
InChI=1S/C14H8N2S4/c1-3-7-11-9(5-1)15-13(17-11)19-20-14-16-10-6-2-4-8-12(10)18-14/h1-8H
InChI Key
AFZSMODLJJCVPP-UHFFFAOYSA-N

Overview

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole (CAS 120-78-5) is an organic disulfide compound with benzothiazole rings known for accelerating vulcanization processes. This heterocyclic organosulfur compound, also identified by EC number 204-424-9, belongs to the benzothiazole disulfide family and serves as a crucial component in rubber processing applications. With its molecular formula C14H8N2S4 and molecular weight of 332.5 g/mol, this compound exhibits characteristic properties that make it valuable in industrial chemistry, particularly in polymer modification and rubber manufacturing processes. The compound presents specific safety considerations, classified under GHS pictograms GHS07 and GHS09 with a "Warning" signal word. It demonstrates skin sensitization properties (Skin Sens. 1) and poses acute and chronic aquatic toxicity risks (Aquatic Acute 1; Aquatic Chronic 1), requiring appropriate handling protocols and environmental precautions. Transportation falls under ADR class 9, indicating miscellaneous dangerous goods classification. Primary industrial applications include rubber vulcanization acceleration, where it functions as an efficient sulfur donor in cross-linking processes. The compound also finds use in polymer stabilization applications and specialty chemical synthesis. Unlike simpler organic compounds such as 4-cyclopropyl-6-methyl-N-phenylpyrimidin-2-amine, this benzothiazole derivative offers specific advantages in high-temperature processing conditions due to its thermal stability and controlled sulfur release properties. Industrial sectors utilizing this compound include tire manufacturing, automotive rubber components, and specialty polymer production, where precise vulcanization control is essential for achieving desired mechanical properties and durability characteristics. OYSI maintains reliable supply chains for 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole to support European industrial customers requiring consistent quality and technical support for their manufacturing processes.

Safety & Classification

Warning
Classification:

Skin Sens. 1; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

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

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:

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 Number3077
ADR Class9
Packing GroupIII
Tunnel Code-
Proper Shipping NameDi(benzothiazol-2-yl)disulfid
Marine PollutantNo

Frequently Asked Questions

What is 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole?

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole is an organic chemical compound with the molecular formula C14H8N2S4 and CAS number 120-78-5. This substance belongs to the benzothiazole family and contains disulfide linkages in its structure. With a molecular weight of 332.5 g/mol, it is classified as a skin sensitizer and poses aquatic toxicity risks. The compound is primarily used in industrial applications and requires careful handling due to its hazardous properties.

What are the physicochemical properties of 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole?

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole is a solid organic compound at room temperature with a molecular weight of 332.5 g/mol. The substance contains four sulfur atoms and two nitrogen atoms within its benzothiazole ring structure, connected by disulfide bonds. Its chemical formula C14H8N2S4 indicates a relatively complex aromatic structure. Specific physical properties such as melting point, color, and solubility may vary depending on purity and manufacturing conditions.

What is 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole used for?

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole is primarily used as a rubber accelerator in the vulcanization process of rubber and elastomer manufacturing. The compound serves as an ultra-fast curing agent, particularly valuable in the production of tires, industrial rubber goods, and technical rubber components. Its disulfide structure makes it effective in cross-linking sulfur with rubber polymers, improving the mechanical properties and durability of the final rubber products.

How to handle 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole safely?

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole requires careful handling due to its skin sensitization properties (Skin Sens. 1). Workers must wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Ensure adequate ventilation in work areas and avoid direct skin contact. The substance carries a Warning signal word and requires implementation of proper safety procedures. Training on safe handling practices is essential before working with this chemical compound.

How to store 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole correctly?

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole should be stored in a cool, dry, well-ventilated area away from incompatible materials. Keep containers tightly closed and protect from moisture and direct sunlight. Due to its aquatic toxicity classification (Aquatic Acute 1; Aquatic Chronic 1), ensure storage areas have appropriate spill containment measures. Store away from water sources and drainage systems. Regular inspection of storage containers is recommended to prevent environmental contamination.

What to do in case of contact with 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole?

In case of skin contact with 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, rinse immediately with clean water for several minutes. If inhaled, move the person to fresh air immediately. Due to its skin sensitization properties, seek medical attention if irritation persists or allergic reactions develop. Do not induce vomiting if ingested and seek immediate medical advice.

How to dispose of 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole appropriately?

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole must be disposed of according to local, national, and international waste regulations due to its environmental hazard classification. The substance cannot be disposed of in regular waste streams due to its aquatic toxicity properties (Aquatic Acute 1; Aquatic Chronic 1). Contact licensed hazardous waste disposal companies for proper treatment and disposal. Prevent release to waterways, soil, or atmosphere. Empty containers may also require special disposal procedures as hazardous waste.

How to transport 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole?

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole is classified as ADR Class 9 (Miscellaneous dangerous goods), Packing Group III for transportation purposes. This classification requires specific packaging, labeling, and documentation procedures during transport. Packages must display appropriate hazard labels and proper shipping names. Transport vehicles must comply with ADR regulations for Class 9 substances. Drivers require appropriate ADR training certificates, and transport documents must accompany shipments throughout the journey.

Is 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole subject to special regulations?

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole is subject to REACH regulation in Europe and requires proper registration for manufacturing and import above certain tonnage thresholds. The substance is not currently listed as a Substance of Very High Concern (SVHC). It must comply with CLP regulation for classification, labeling, and packaging requirements, displaying GHS07 and GHS09 pictograms with Warning signal word. Companies handling this substance must maintain safety data sheets and implement appropriate risk management measures.

Where to buy 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole in Europe?

2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole is available through OYSI, a specialized European distributor of technical chemicals and industrial raw materials. OYSI provides this rubber accelerator to manufacturers across Europe with appropriate documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures proper packaging, labeling, and transport according to ADR Class 9 requirements. Contact OYSI directly for availability, technical specifications, and delivery options to your location.

Data Sources

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