Are all DOSS or AOT products with CAS 577-11-7 directly dosage-equivalent?

No. The same sodium bis(2-ethylhexyl) sulfosuccinate identity may be supplied as dry material or as solutions or pastes with different active content and carrier. Compare active matter, water or solvent, pH, appearance, and method-specific wetting or emulsification behavior, then calculate dosage on an active basis.

Sodium Bis(2-ethylhexyl) Sulfosuccinate (DOSS/AOT) CAS 577-11-7

Sodium Bis(2-ethylhexyl) Sulfosuccinate (CAS 577-11-7), also called DOSS or AOT, is an anionic sulfosuccinate surfactant used for rapid wetting, dispersion and emulsification. Commercial grades differ in active-matter content and carrier system. Water content, acidity or pH, color, physical form and wetting performance are further selection criteria for the intended formulation. COA, TDS and SDS are available for specification and handling information.

CAS: 577-11-7
Synonyms: Sodium Bis(2-ethylhexyl) Sulfosuccinate, Sodium Diethylhexyl Sulfosuccinate, DOSS, AOT
Einecs: 209-406-4
Molecular Formula: C₂₀H₃₇NaO₇S
Grade: Specified by active matter, carrier, water, acidity or pH, color, physical form and wetting performance; see the current TDS and COA.
Package: Drums or bulk; confirm container, liner, net weight and handling for your order and destination.

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Product Description

1 Physicochemical profile

2 Application and grade selection

3 Storage and handling

4 Safety and supply documentation

Physicochemical profile

Item	Technical guidance
Product identity	Sodium bis(2-ethylhexyl) sulfosuccinate, commonly abbreviated DOSS or AOT
CAS / EC	577-11-7 / 209-406-4
Molecular formula	C₂₀H₃₇NaO₇S
Commercial form	Solid active material, or a formulated liquid with a specified carrier and stated active-matter content
Key quality controls	Active matter, carrier composition, water, acidity or pH, color, physical form and method-specific wetting performance
Identity boundary	Do not confuse this substance with sodium di-n-octyl sulfosuccinate, which is a different chemical identity

Active-matter content is not the same as total solids. Two-phase titration, such as ISO 2271, determines anionic-active matter in suitable solid or aqueous samples when the relative molecular mass of the anionic-active matter is known; it is not applicable in the presence of cationic surfactants.

Application and grade selection

DOSS/AOT is an anionic sulfosuccinate surfactant used where rapid wetting, dispersion or emulsification is required. Commercial products with the same abbreviation can differ in active matter, carrier, flash point, viscosity and dosage.

Textile and cleaning evaluations should use a defined wetting-time or dynamic-surface-tension method at the intended active-matter concentration, pH, water hardness and temperature.
Coating, dispersion and agrochemical trials should check foam, clarity, phase stability and performance with the actual solvent, electrolyte and active ingredients.
Compatibility with strongly cationic materials must not be assumed. Test both the concentrate and the intended use dilution for turbidity, precipitation and loss of performance.

For nonionic wetting-agent options in industrial cleaning, compare E-1307 isotridecyl alcohol ethoxylate and 2-ethylhexanol ethoxylate. Compare the EO profile, cloud-point test conditions, foam and wetting performance in the intended formulation.

Storage and handling

Store in the original closed package under the conditions stated in the SDS. Temperature limits, fire precautions and transport requirements depend strongly on whether the grade is a solid or a solution and on the identity and concentration of its carrier.

Safety and supply documentation

Follow the exact-grade SDS for personal protection, spill response, incompatibilities, transport and disposal.

We can provide a Certificate of Analysis (COA), Technical Data Sheet (TDS) and Safety Data Sheet (SDS), including the applicable specification and quality-test information. For a quotation, send the grade or intended application, quantity and destination.

FAQ - Technical & Supply Chain

Q:
Are all DOSS or AOT products with CAS 577-11-7 directly dosage-equivalent?

A: No. The same sodium bis(2-ethylhexyl) sulfosuccinate identity may be supplied as dry material or as solutions or pastes with different active content and carrier. Compare active matter, water or solvent, pH, appearance, and method-specific wetting or emulsification behavior, then calculate dosage on an active basis.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

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Quotation

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Storage & Shipping

Product-specific conditions are confirmed before order.

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