2-Propanethiol（CAS#75-33-2）
| Risk Codes | R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R36/38 - Irritating to eyes and skin. |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S9 - Keep container in a well-ventilated place. S37/39 - Wear suitable gloves and eye/face protection S33 - Take precautionary measures against static discharges. |
| UN IDs | UN 2402 3/PG 2 |
| WGK Germany | 3 |
| RTECS | TZ7302000 |
| FLUKA BRAND F CODES | 13 |
| TSCA | Yes |
| HS Code | 2930 90 98 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
Introduction
2-Propantomercaptan, also known as propanol isosulfide, is an organic compound. The following is an introduction to its nature, use, manufacturing methods and safety information:
Quality:
- Appearance: 2-Propanol is a colorless or yellowish liquid.
- Odor: Has a special smell similar to the smell of garlic.
- Solubility: It can be dissolved in water and many organic solvents such as ethanol and ether.
- Stability: It is a stable compound, but it may decompose in high temperatures or high oxygen environments.
Use:
- Vulcanization reactions: It contains sulfur, and 2-propyl mercaptan is also commonly used to catalyze sulfidation reactions.
Method:
- 2-Propanthiol can be prepared by a variety of methods, a common method is obtained by the reaction of propylene oxide and sodium hydrosulfide.
Safety Information:
- 2-Propanol has a pungent odor and may cause irritation to the eyes, skin, and respiratory tract upon contact. Wear appropriate protective equipment, such as gloves, face shields, and goggles, to ensure good ventilation during use.
- Safety measures need to be taken during storage and disposal to avoid contact and mixing with combustibles. It should be stored in an airtight container, away from fire and high temperatures.
- Before use and disposal, the relevant safety instructions and operating guidelines must be carefully read and observed.
2-Propanethiol Isopropyl mercaptan | CAS 75 33 2
2. One Line Sourcing Position
High purity 2-Propanethiol for specialty synthesis, polymer additives, and pharmaceutical intermediates.
3. Quick RFQ Form
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4. Product Specifications
| Parameter | Specification |
|---|---|
| Purity by GC | 98.0 percent minimum, typical batch 98.5 to 99.0 percent |
| Water content Karl Fischer | 0.20 percent maximum |
| Appearance | Colorless to pale yellow clear liquid |
| Odor | Strong characteristic mercaptan odor |
| Density at 20 deg C | 0.810 to 0.820 g per mL |
| Refractive index nD20 | 1.425 to 1.430 |
| Residue on evaporation | 50 ppm maximum |
| Sulfur content | Theoretical 42.5 percent by calculation |
| Stock status | In Stock in US warehouse and Asia hub |
5. Available Quantity and Lead Time
Regular supply: 500 g to 15 metric tons per shipment
Lead time: 5 to 7 days for standard packaging; bulk orders require 12 to 15 days
6. Document Support
COA SDS HPLC chromatogram NMR spectrum Mass spectrum MS available upon request
7. Applications
2-Propanethiol is a short chain aliphatic thiol widely used in organic synthesis as a chain transfer agent in free radical polymerization, especially for producing low molecular weight polyolefins and acrylic resins. In the pharmaceutical industry, it serves as a key building block for certain antihypertensive drugs and sulfur containing heterocycles. The compound acts as a flavor additive in trace amounts for onion and garlic notes, and as a odorant for natural gas leak detection. Agricultural chemical synthesis uses it to prepare organosulfur pesticides and soil fumigants. It is also applied as a corrosion inhibitor in metalworking fluids and as a vulcanization accelerator intermediate in rubber manufacturing. In analytical chemistry, 2-Propanethiol is used as a reference standard for volatile sulfur compound analysis by GC MS.
8. Custom Synthesis Support
We offer custom synthesis for 2-Propanethiol derivatives such as disulfides, thioethers, and higher purity grades. Share your technical datasheet for feasibility review.
9. Packaging and Shipping
Available in 500 mL, 2.5 L, 20 L steel drums, or 200 L UN approved barrels. Custom packaging such as amber glass bottles with PTFE lined caps is supported. Fastest dispatch within 7 days after order confirmation. Compliance with IMDG for Class 3 flammable liquid and IATA for air freight. UN 2403, PG II.
10. Why XinChem
XinChem provides 2-Propanethiol with strict odor control and consistent purity for US customers. Our ISO 9001 certified facility runs GC analysis on every batch to ensure lot to lot reproducibility. We maintain a safety stock of 5 metric tons in regional warehouses for emergency shipments within 48 hours. Each order includes a full documentation package: COA, SDS, and chromatograms accessible online. Our technical support team assists with handling recommendations, stability studies, and regulatory compliance including TSCA listing and EINECS confirmation. For long term contracts, we offer fixed quarterly pricing and consignment inventory to streamline your supply chain. Trusted by over 150 chemical and pharmaceutical companies in North America. Free sample evaluation is available for qualified R&D projects, and we provide a price match guarantee against any valid competitor quote for equivalent quality.
11. FAQ
Q1 How should 2-Propanethiol be stored safely?
A Store in a cool, well ventilated area away from heat, sparks, and oxidizers. Use nitrogen blanketing for large containers to prevent disulfide formation. Shelf life is 12 months in original sealed UN approved drums.
Q2 What purity levels can you supply?
A Standard grades are 98 percent and 99 percent. The 99 percent grade is preferred for pharmaceutical and electronic material applications.
Q3 Do you offer sample quantities for evaluation?
A Yes, free samples of 100 mL are available for qualified US companies. Shipping and handling fees apply for small quantities.
Q4 How do you manage the strong mercaptan odor during transport?
A All drums are double sealed with PTFE gaskets and packed with secondary containment. Odor absorbing bags and spill response instructions are included.
Q5 Is 2-Propanethiol stable in stainless steel tanks?
A Yes, 316 stainless steel is suitable for storage and transport. Avoid copper, brass, and aluminum alloys due to corrosion risk.
Q6 Can you provide a custom packaging size like 5 L?
A Absolutely. Custom packaging from 100 mL to 1000 L IBC is supported with a lead time of 7 to 10 days.
