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CAS Number: 496-74-2
Product Catalog
16-0450
Sulfur › 1,2-Dimercapto-4-methylbenzene, min. 90% (Toluene-3,4-dithiol)| CAS Number: | 496-74-2 |
| MDL Number: | MFCD00004844 |
| Molecular Formula: | C7H8S2 |
| Molecular Weight: | 156.26 |
| Chemical Formula: | 4-CH3C6H3-1,2-(SH)2 |
| Color and Form: | yellow liq. |
| Note: |
Stability: store cold
Physical Characteristics: density 1.179, melting point 35°C
| SECTION 1: Product Identification | |
|---|---|
| Chemical Name: | 1,2-Dimercapto-4-methylbenzene, min. 90% (Toluene-3,4-dithiol) |
| Product Number: | 16-0450 |
| CAS Registry Number: | 496-74-2 |
| Formula: | C7H8S2 |
| EINECS Number: | 207-828-3 |
| Chemical Family: | aromatic mercaptan |
| Synonym: | toluene-3,4-dithiol; 1,2-Benzenedithiol, 4-methyl-; dithiol |
| SECTION 2: Composition and Information on Ingredients | ||||
|---|---|---|---|---|
| Ingredient | CAS Number | Percent | ACGIH (TWA) | OSHA (PEL) |
| Title compound | 496-74-2 | 100 | no data | no data |
| SECTION 3: Hazards Identification | |
|---|---|
| Emergency Overview: | Irritating to skin, eyes and respiratory tract. May be harmful if swallowed. |
| Primary Routes of Exposure: | Contact with skin and eyes. Inhalation of vapor. |
| Eye Contact: | Causes mild to severe irritation of the eyes. |
| Skin Contact: | Causes slight to mild irritation of the skin. May be absorbed through the skin. |
| Inhalation: | Irritating to the nose, mucous membranes and respiratory tract. Avoid breathing vapor. |
| Ingestion: | No information is available on the physiological effects of ingestion. May be harmful if swallowed. |
| Acute Health Effects: | Irritating to skin, eyes and respiratory tract. |
| Chronic Health Effects: | No information available on the long-term chronic effects. |
| NTP: | No |
| IARC: | No |
| OSHA: | No |
| SECTION 4: First Aid Measures | |
|---|---|
| Eye Exposure: | Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention. |
| Skin Exposure: | Wash the affected area immediately with water. Remove contaminated clothing if necessary. Seek medical assistance if irritation persists. |
| Inhalation: | Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance. |
| Ingestion: | Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel. |
| SECTION 5: Fire Fighting Measures | |
|---|---|
| Flash Point: | no data |
| Autoignition Temperature: | none |
| Explosion Limits: | none |
| Extinguishing Medium: | carbon dioxide, dry powder or foam |
| Special Fire Fighting Procedures: | If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self- contained breathing apparatus and full protective clothing. |
| Hazardous Combustion and Decomposion Products: | If involved in a fire this material may emit toxic and corrosive fumes. |
| Unusual Fire or Explosion Hazards: | No unusual fire or explosion hazards. |
| SECTION 6: Accidental Release Measures | |
|---|---|
| Spill and Leak Procedures: | The material has a pungent odor and may release toxic fumes. Leave the area unless fitted with a self-contained breathing apparatus. Small spills can be absorbed into vermiculite or other suitable chemical adsorbent. Sweep up the material and dispose of properly. |
| SECTION 7: Handling and Storage | |
|---|---|
| Handling and Storage: | Store in a sealed container. Store cold. Prolonged exposure to air will degrade product. |
| SECTION 8: Exposure Controls and Personal Protection | |
|---|---|
| Eye Protection: | Always wear approved safety glasses when handling a chemical substance in the laboratory. |
| Skin Protection: | Wear protective clothing and gloves. Consult with glove manufacturer to determine the proper type of glove. |
| Ventilation: | The material has a malodorous stench. Handle the material in an efficient fume hood. |
| Respirator: | If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134. |
| Additional Protection: | No additional protection required. |
| SECTION 9: Physical and Chemical Properties | |
|---|---|
| Color and Form: | yellow liquid |
| Molecular Weight: | 156.26 |
| Melting Point: | 35°C |
| Boiling Point: | no data |
| Vapor Pressure: | no data |
| Specific Gravity: | no data |
| Odor: | pungent |
| Solubility in Water: | insoluble |
| SECTION 10: Stability and Reactivity | |
|---|---|
| Stability: | Sensitive to heat and prolonged exposure to air |
| Hazardous Polymerization: | no hazardous polymerization |
| Conditions to Avoid: | none |
| Incompatibility: | oxidizing agents, active metals and halogens |
| Decomposition Products: | carbon dioxide, carbon monoxide, sulfur dioxide and organic fumes. |
| SECTION 11: Toxicological Information | |
|---|---|
| RTECS Data: | No information available in the RTECS files. |
| Carcinogenic Effects: | no data |
| Mutagenic Effects: | no data |
| Tetratogenic Effects: | no data |
| SECTION 12: Ecological Information | |
|---|---|
| Ecological Information: | No information available |
| SECTION 13: Disposal Considerations | |
|---|---|
| Disposal: | Dispose of according to local, state and federal regulations. |
| SECTION 14: Transportation | |
|---|---|
| Shipping Name (CFR): | Non-hazardous |
| Hazard Class (CFR): | NA |
| Additional Hazard Class (CFR): | NA |
| Packaging Group (CFR): | NA |
| UN ID Number (CFR): | NA |
| Shipping Name (IATA): | Non-hazardous |
| Hazard Class (IATA): | NA |
| Additional Hazard Class (IATA): | NA |
| Packaging Group (IATA): | NA |
| UN ID Number (IATA): | NA |
| SECTION 15: Regulatory Information | |
|---|---|
| TSCA: | Listed in the TSCA inventory |
| SARA (Title 313): | Title compound not listed. |
| Second Ingredient: | none |
| Third Ingredient: | none |
| SECTION 16: Other Information | |
|---|---|
| Disclaimer: | The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information. |
| Preparation Date: | 7/01/2004 |
| Revision Date: | 9/22/2011 |
