Hydrotrope comparison

SCS vs SXS: Sodium Cumene Sulfonate vs Sodium Xylene Sulfonate

Sodium Cumene Sulfonate (SCS) and Sodium Xylene Sulfonate (SXS) are the two most widely used hydrotropes in liquid and powder cleaners. Both keep surfactant blends clear and single-phase, but they differ in coupling strength, electrolyte tolerance and cost — which decides the better fit for your formula.

Quick answer: SCS is the stronger, more robust hydrotrope: it holds high-active surfactant blends clear, controls cloud point well and is preferred where foam control and formulation stability matter. SXS is lower-cost and slightly stronger in high-electrolyte alkaline builders, so it suits mass-market and heavily-built cleaners. Many formulators keep both; Vasudev Chemo Pharma supplies SCS 40%/90% and can advise on the switch.

Request price & sampleView SCS 40% (liquid)View SCS 90% (powder)

SCS vs SXS at a glance

PropertySCS (Sodium Cumene Sulfonate)SXS (Sodium Xylene Sulfonate)
CAS28348-53-01300-72-7
HydrophobeCumene (isopropylbenzene)Xylene (dimethylbenzene)
Hydrotrope strengthHigher — robust coupling at high activeGood — very strong in high-electrolyte alkaline systems
Cloud-point controlStrongSlightly stronger in alkaline builders
Foam impactLow — good for controlled-foam systemsCan slightly affect foam
Relative costModerateTypically lower
Best fitPremium/stable liquid & powder cleaners, personal careMass-market, heavily-built alkaline cleaners

How to choose between them

If your priority is clarity and stability at high surfactant active matter, controlled foam, or milder personal-care systems, SCS is usually the better performer. If you are formulating a low-cost, high-builder alkaline cleaner and want maximum coupling per rupee, SXS can be the more economical choice.

  • Choose SCS for clear high-active liquids, dishwash gels, shampoos and controlled-foam cleaners
  • Choose SXS for heavily-built alkaline degreasers and cost-driven mass-market cleaners
  • Both are anionic — avoid combining with high levels of cationic actives (e.g. BKC) without a compatibility trial
  • Switching SCS↔SXS usually needs only a small dose re-optimisation and a clarity/stability check

Related Pages & Products

Frequently Asked Questions

Is SCS better than SXS?+
Neither is universally 'better' — they are complementary. SCS gives stronger, more robust coupling and cleaner foam behaviour in high-active and personal-care systems; SXS is lower cost and excels in high-electrolyte alkaline builders. Match the hydrotrope to the formulation.
Can SCS replace SXS in my detergent?+
Usually yes. Because both are aromatic sulfonate hydrotropes, you can substitute on an active basis and re-check clarity, cloud point and viscosity in a lab trial. SCS often lets you reduce dose slightly for the same clarity.
Do you supply both SCS and SXS?+
Vasudev Chemo Pharma manufactures Sodium Cumene Sulfonate (SCS 40% and 90%). We can advise formulators moving from SXS to SCS and provide samples for side-by-side evaluation.
Which is more cost-effective for export?+
For export, the bigger lever than SCS-vs-SXS is liquid-vs-powder: the 90% powder grade slashes freight per kg of active. See our SCS 40 vs 90 selection guide.

Get SCS 40% / 90% pricing and a free sample

Send your grade (40% liquid or 90% powder), quantity, packaging, destination port and incoterm. Vasudev Chemo Pharma — an ISO 9001:2015 certified manufacturer in Gujarat, India — replies within 24 hours with price, lead time, COA/SDS and a free evaluation sample.

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