O-chlorophenyl Sulfonyl Isocyanate
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Product Description
Product Details
Introduction
O-Chlorobenzenesulfonyl isocyanate, also known as 2-chlorobenzenesulfonyl isocyanate, is a colorless oily liquid that has the chemical formula C₇H₄ClNO₃S, a molecular weight of 217.63, and a CAS number of 64900-65-8. It is a colorless oily liquid with a density of 1.484 g/mL (25°C), a boiling point of 285°C, and a flash point of >113°C. It decomposes in water and air and is soluble in solvents such as acetonitrile and benzene.
This substance is prepared by reacting o-chlorobenzenesulfonamide with phosgene in xylene solvent, using triethylamine and n-butyl isocyanate as raw materials. After the reflux reaction, the fraction is collected by vacuum distillation at 130-140℃ (0.133 kPa). It is mainly used as an intermediate for the sulfonylurea herbicide chlorsulfuron, applied in the field of pesticide production. Storage should be kept sealed in a cool and dry environment, which is highly corrosive and can cause skin burns and eye damage upon contact. Protective equipment should be worn during operation.
Technical Index
Appearance | Colorless oily liquid |
Content | ≥98% |
Boiling point ( ℃) | 285 |
Density (g/cm³) | 1.484 |
Flash Point | ＞230°F |
Refractive Index | n20/D 1.559 (lit.) |
stability | The pure product is a colorless oily liquid, with a temperature range of 94-95°C/40 Pa. It decomposes when exposed to water and air and is soluble in solvents such as acetonitrile and benzene. |
Package
200 kg/drum
Store in a sealed container, away from light and heat.
Related Intermediates
Keyword:
O-chlorophenyl Sulfonyl Isocyanate
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