| Customization: | Available |
|---|---|
| CAS No.: | 4083-64-1 |
| Formula: | C8h7no3s |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Basic Information
Product Name: p-Toluenesulfonyl Isocyanate
Synonyms: PTSI, Tosyl Isocyanate, 4-Methylbenzenesulfonyl Isocyanate
CAS No. 4083-64-1
Molecular Formula: C8H7NO3 S
Molecular Weight: 197.21 g/mol
Appearance: Colorless transparent liquid
Melting Point: 5°C
Boiling Point: 144°C (10 mmHg)
Density: 1.291 g/mL at 25°C
Refractive Index: nD 20 1.534
Flash Point: >230°F (>110°C)
Solubility: Soluble in organic solvents (e.g., ethanol, DMF, diethyl ether); reacts rapidly with water.
Applications
Polyurethane Coatings: Acts as a dehydrating agent for solvents, fillers, and pigments to prevent moisture-induced issues (e.g., loss of gloss, yellowing, foaming).
Stabilizer for Diisocyanates: Prevents deterioration or discoloration of purified diisocyanates.
Organic Synthesis:
Used to prepare compounds like acetylated cis-1,2-diols, oxazolidin-2-ones, 2,3-diamino acids, and
N
-tosylamides.
Serves as a derivatization reagent for analytical methods (e.g., LC-MS/MS for detecting 3-α-hydroxy tibolone in human plasma; HPLC for quantifying diethylene glycol and propylene glycol in pharmaceuticals).
Safety Information
Hazard Statements:
Highly reactive with water (Risk R14).
Irritating to eyes, respiratory system, and skin (Risk R36/37/38).
May cause sensitization by inhalation (Risk R42).
Safety Instructions:
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S28A: After skin contact, wash immediately with plenty of water.
S30: Never add water to this product.
| Liquid products | Drum of 5kg ,10 kg ,25 kg ,50 kg 200 kg ,250 kg . 1000 kg IBC drum. TANK with 20 tons ,25 tons . |
| Solid products | Bag of 1 kg ,2 kg ,5 kg ,25 kg ,500kg ,1000 kg . Drum of 25 kg and 50 kg. |
Packaging can be customized according to customer requirements.
Qingdao Jinyu Chemical Co., LTD,which is located in Qingdao City, China, with registered capital of RMB 10 million, is a dynamic chemical import and export enterprise with customer demand as its own responsibility. The founder has been engaged in the chemical industry for more than 20 years. With professional technical and marketing personnel, diversified cooperative factories with synthetic technology and efficient logistics management, we provide services to customers all over the world. After years of hard work, we have selected a number of excellent chemical production cooperative enterprises in China. These enterprises have their own advantages in different chemical synthesis fields. They have passed the strict inspection of suppliers by many customers and formed a long-term and stable strategic partnership with customers. With our partners' excellent equipment, well-trained employees and mature technology, we also continue to provide customers with more products.
){kind=link}