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Quick Details

  • CAS No.: 3965-55-7
  • Other Names: dimethyl 5 sulfoisophthalate sodium salt
  • MF: C10H9O7SNa
  • EINECS No.: 223-578-8
  • Place of Origin: Shandong, China (Mainland)
  • Purity: 99%
  • Classification: Other
  • Brand Name: WNN
  • Model Number: 99% white

Packaging & Delivery

Packaging Details 25kg/bag, 500kg/sack
Delivery Time 7 days


CAS No.: 3965-55-7
Appearance: white powder without visible impurities
Purity: 99.


1)99.5% purity 
2)the most competitive price in china 
3)export to all over the world

SIPM,DMSIP,third monomer

Dimethyl-5-Sulfoisophathalate Sodium salt(DMSIP, CAS:3965-55-7) is mainly used to produce the dyed polyester chip.DMSIP(CAS:3965-55-7)is also used in water dispersible resin systems applied in coating and adhesives.DMSIP(CAS:3965-55-7) is acting as the third monomer of cation modified polyester(CDPET).DMSIP(CAS:3965-55-7) has a good affinity function with cation dyestuff because of the CDPET fiber containing sulfo group,the dyed fiber is bright and lustrous,having a complete range of color and dying deeply.The modified fiber has woolens feeling,it is easily blended with fleece that is necessary for garments manufacturing.




High Quality

First Grade


white powder without visible impurities

Acid Value (mgKOH/g)



Saponification Value (mgKOH/g)

378± 2


Sulfate ion (ppm)



Water ( wt% )



Ferrum (ppm)



Absorbance (ABS)



Chloride ion (ppm)




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China (Mainland) | Manufacturer, Trading Company
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