o-Toluenesulfonamide (OTSA) CAS 88-19-7 Purity >98.0% (HPLC)
Leading Manufacturer and Supplier
p-Toluenesulfonamide (PTSA) CAS 70-55-3
o-Toluenesulfonamide (OTSA) CAS 88-19-7
Chemical Name | o-Toluenesulfonamide |
Synonyms | OTSA; ortho-Toluenesulfonamide; 2-Methylbenzenesulfonamide; 2-Methylbenzene-1-Sulfonamide; 2-Tolylsulfonamide; Toluene-2-Sulfonamide; o-Methylbenzenesulfonamide; o-Toluenesulfamide; p-Toluene-2-Sulfonamide; 2-Tolylsulfonamide |
Stock Status | In Stock, Production Capacity 300mt/Year |
CAS Number | 88-19-7 |
Molecular Formula | C7H9NO2S |
Molecular Weight | 171.21 g/mol |
Melting Point | 155.0~159.0℃ |
Boiling Point | 210℃/1mm |
Flash Point | 178℃(352°F) |
Solubility | Slightly Soluble in Water and Ether, Soluble in Ethanol |
COA & MSDS | Available |
Sample | Available |
Origin | Shanghai, China |
Brand | Ruifu Chemical |
Item | Specifications |
Appearance | White Powder or Crystals |
Purity / Analysis Method | >98.0% (HPLC) |
Melting Point | 155.0~159.0℃ |
Moisture (K.F) | <0.50% |
Colority | <20APHA |
PTSA | <2.00% (p-Toluenesulfonamide, CAS: 70-55-3) |
Heavy Metals | <10ppm |
Chloride (Cl) | <100ppm |
Sulfate (SO4) | <100ppm |
pH Value | 6.8~7.2 |
Infrared Spectrum | Conforms to Structure |
Test Standard | Enterprise Standard |
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.
Storage Condition: Store in sealed containers at cool and dry place; Protect from light and moisture.
o-Toluenesulfonamide (OTSA) (CAS: 88-19-7), O/P-toluene sulfonamide is primarily used as a plasticizer due to its ability to improve stability, flexibility, salt resistance, and flow properties in resins. In particular, O/P-Toluenesulfonamide is known for its ability to create a smooth and uniform gloss in resins. It creates this gloss by improving the resin’s wetting ability with fillers that allows for easier mixing and more unified finish. O/P-Toluenesulfonamide is very commonly used in melamine resins, thermosetting resins, laminating resins, thermoplastics and other general coating applications. Additionally, it is used in the manufacturing of dyes, pigments, inks, as a brightener in nickel-plating formulations, as a raw material for OPTSA plasticizers and mixtures, and as a building block for organic synthesis applications. O/P-Toluenesulfonamide also acts as an antistatic agent in polyamides and has moderately strong fungicide properties.