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A18028 5-Sulfoisophthalic acid monosodium salt, 95%

CAS Number

Stock No. Size Price ($) Quantity Availability
A18028-22 100g 26.80
A18028-30 250g 59.60
A18028-36 500g 107.00
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5-Sulfoisophthalic acid monosodium salt, 95%


Chemical Properties

Formula Weight
Melting point
Storage & Sensitivity
Ambient temperatures.
Soluble in water.


It can be used as the third monomer in the Polyester procession of esterification, which can improve the ability of product's dying. And it can be used as the catalyst in medicine, agricultural chemical, polyester. Used as a monomer for waterborne polyesters and nylon fibers, in adhesion aid for magnetic tapes, and amine free polyurethane dispersions.


Store in cool, dry place in a well sealed container. Store away from oxidizing agents.

Literature References

Qing-Yan Liu; and Li Xu. Synthesis, Crystal Structures, and Photophysical Properties of Two Novel Lead(II)-SIP Coordination Polymers (NaH2SIP = 5-Sulfoisophthalic Acid Monosodium Salt) Containing Tetranuclear Lead(II) Units. European Journal of Inorganic Chemistry. 2006, 2006 (8), 1620-1628.

Yu-Ling Wang; Qing-Yan Liu and Li Xu. Two novel luminescent silver(I) coordination polymers containing octanuclear silver cluster units or ligand unsupported Ag?Ag interactions constructed from 5-sulfoisophthalic acid (H3SIP) and organic amine.CrystEngComm. 2008, 10 (11), 1667-1673.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • A10934

    Barbituric acid, 99%
  • A14832

    Elaidic acid, 98%
  • B23556

    3-Sulfobenzoic acid monosodium salt, 97%
  • B24646

    Dimethyl 5-sulfoisophthalate sodium salt, 98%
  • H33152

    Filter aid, Celite® 545, treated with sodium carbonate, flux calcined

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