What is Sodium Lauroyl Sarcosinate CAS 137-16-6?

Sodium Lauroyl Sarcosinate is an anionic amino-acid-based surfactant derived from lauric acid and sarcosine. It has CAS 137-16-6, EC No. 205-281-5, and molecular formula C15H28NNaO3, and is used mainly in mild personal-care cleansing formulations.

Why is Sodium Lauroyl Sarcosinate described as a mild surfactant?

It is selected for good foaming and cleansing performance with a lower-irritation profile compared with many conventional sulfate surfactants. Its mildness benefits depend on the full formulation, pH, concentration, and combination with other surfactants.

What supply forms, active contents, and pH should be checked for Sodium Lauroyl Sarcosinate?

Commercial grades are commonly supplied as a colorless to light yellow liquid with about 30% active content or as a white powder with about 95% active content. pH is usually alkaline in aqueous solution, often around 7.0-8.5 for a 10% solution, but exact values vary by grade.

How is Sodium Lauroyl Sarcosinate different from Sodium Lauryl Sulfate or Sodium Lauroyl Isethionate?

Sodium Lauroyl Sarcosinate is a sarcosinate-based anionic surfactant, while Sodium Lauryl Sulfate is a sulfate surfactant and Sodium Lauroyl Isethionate is an isethionate surfactant. They differ in structure, mildness, foaming, pH behavior, and compatibility, so they should be selected by formulation testing rather than used as direct replacements.

Sodium Lauroyl Sarcosinate CAS 137-16-6

Sodium Lauroyl Sarcosinate, an anionic amino-acid-based surfactant derived from lauric acid and sarcosine, CAS 137-16-6, is positioned for mild cleansing and foaming in personal-care formulations. Confirm the required active content and grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 137-16-6
Synonyms: Sodium N-Lauroyl Sarcosinate；Sarkosyl Sodium
Einecs: 205-281-5
Molecular Formula: C15H28NNaO3
Grade: Formulation / personal care grade
Package: Standard export packaging

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Product Description

Sodium Lauroyl Sarcosinate CAS 137-16-6 is an anionic amino-acid-based surfactant with EC 205-281-5 and molecular formula C15H28NNaO3.

Synonyms: Sodium N-lauroyl sarcosinate; Sarkosyl sodium.

CAS: 137-16-6.

Molecular formula: C15H28NNaO3.

It is derived from lauric acid and sarcosine.

It is commonly supplied as a colorless to light yellow liquid at about 30% active content or a white powder at about 95% active content.

It is positioned as a mild cleansing and foaming surfactant with a lower-irritation profile.

It is commonly used in shampoo, hair-care products, facial cleansers, body wash, toothpaste, and other mild cleansing systems.

It can serve as a primary or secondary surfactant depending on the formulation design.

It offers good foaming and cleansing performance compared with many conventional sulfate surfactants.

Confirm active content, appearance, pH, and related impurities for the chosen grade.

Check compatibility with the full surfactant package, pH, and preservative system.

Store in tightly closed containers in a cool, dry, well-ventilated area away from moisture and heat.

Use appropriate PPE and prevent spills or contamination.

Confirm packaging suitable for the supply form and order quantity, and follow the current SDS.

Every batch is checked for active content, appearance, pH, and related impurities, with COA/TDS/SDS supplied per grade.

Confirm active content, packaging, and grade as required.

The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

For an RFQ, state the intended application, required grade, quantity, packaging, destination, and document needs.

FAQ - Technical & Supply Chain

Q:
What is Sodium Lauroyl Sarcosinate CAS 137-16-6?

A: Sodium Lauroyl Sarcosinate is an anionic amino-acid-based surfactant derived from lauric acid and sarcosine. It has CAS 137-16-6, EC No. 205-281-5, and molecular formula C15H28NNaO3, and is used mainly in mild personal-care cleansing formulations.
Q:
What are the main applications of Sodium Lauroyl Sarcosinate?

A: It is used in shampoo and hair-care products, facial cleansers, body wash, toothpaste, and other mild cleansing systems. It can serve as a primary or secondary surfactant depending on the formulation design.
Q:
Why is Sodium Lauroyl Sarcosinate described as a mild surfactant?

A: It is selected for good foaming and cleansing performance with a lower-irritation profile compared with many conventional sulfate surfactants. Its mildness benefits depend on the full formulation, pH, concentration, and combination with other surfactants.
Q:
What supply forms, active contents, and pH should be checked for Sodium Lauroyl Sarcosinate?

A: Commercial grades are commonly supplied as a colorless to light yellow liquid with about 30% active content or as a white powder with about 95% active content. pH is usually alkaline in aqueous solution, often around 7.0-8.5 for a 10% solution, but exact values vary by grade.
Q:
How is Sodium Lauroyl Sarcosinate different from Sodium Lauryl Sulfate or Sodium Lauroyl Isethionate?

A: Sodium Lauroyl Sarcosinate is a sarcosinate-based anionic surfactant, while Sodium Lauryl Sulfate is a sulfate surfactant and Sodium Lauroyl Isethionate is an isethionate surfactant. They differ in structure, mildness, foaming, pH behavior, and compatibility, so they should be selected by formulation testing rather than used as direct replacements.

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