Sodium lauroyl methyl isethionate

CAS No.

928663-45-0

Synonyms

SLMI; Sodium 2-(dodecanoyloxy)propane-1-sulfonate; also listed as Sodium Lauroyl Methyl Isethionate (SLMI)

Molecular formula

C15H29NaO5S

Molecular weight

344.44 g/mol

Grade

Cosmetic grade

Packaging

Sealed PE bag / Kraft paper bag with PE liner
SKU FM-295 Category

Chemical Product Description & Applications

Sodium lauroyl methyl isethionate is an anionic surfactant used for cleansing and dense, creamy foam in personal-care products. Its lauroyl group associates with oily soil, while the isethionate-derived sulfonate group provides affinity for water. It is a sulfate-free surfactant in the chemical sense: the anionic group is a sulfonate rather than a sulfate ester.

The solid flake grade is particularly relevant to low-water cleansing formulations. It can also be incorporated into liquid surfactant systems through an appropriate dissolution and processing sequence. It contributes the primary cleansing and foam structure, while co-surfactants, binders and conditioning ingredients establish the final texture and wash feel. It is distinct from sodium cocoyl isethionate in both acyl distribution and head-group structure.

Typical Applications

  • Syndet cleansing bars: Used as a main surfactant in facial and body cleansing bars made without a conventional soap base. It supplies lather and detergency while the bar structure is developed using compatible binders and solid ingredients.
  • Solid shampoo manufacture: Used in shampoo bars to provide cleansing and foam in a compact, low-water format. Conditioning agents and additional surfactants are incorporated separately to establish the hair feel and bar performance.
  • Liquid sulfate-free cleansers: Used in blended face washes and body washes where an isethionate surfactant is selected for creamy foam. Processing converts the solid feedstock into a uniform aqueous surfactant system.

Specifications

Parameter Specification Test Method
Appearance White to cream flakes or granules Visual inspection
Identification Consistent with authenticated reference FTIR fingerprint comparison
Anionic active matter ≥80.0% w/w Two-phase cationic titration
Free fatty acids 5.0-15.0% w/w Selective extraction and titration
Water ≤2.0% w/w Karl Fischer titration
pH, 10% aqueous dispersion at 25 C 5.0-7.0 Calibrated pH meter

Specifications describe the standard grade. Tolerance, test method and documentation package are confirmed per order.

Documents & Handling

Packaging

Sealed PE bag / Kraft paper bag with PE liner

What You Get With This Product

【待客户提供:本产品可公开的批次 CoA、TDS、SDS;按产品名或 CAS 命名的 PDF,用于本页文档申请区】

CoA

Certificate of Analysis

【待客户提供:本产品 CoA 样本;包含批号、检测项目、限度、结果和方法的 PDF,用于质量文件展示】

TDS

Technical Data Sheet

【待客户提供:本产品 TDS;包含典型性质、等级与技术指标的 PDF,用于技术参数确认】

SDS

Safety Data Sheet

【待客户提供:本产品 SDS;包含 GHS 分类、操作与运输要求的 PDF,用于安全文件确认】

【待客户提供:本产品储存条件、保质期与特殊运输要求;经确认的文字或 SDS/TDS,用于储运说明】

Tell Us What You Need.

Product Inquiry

Send the product name, required quantity and specification. We reply with availability, documentation and the next step.

Inquiry

Request a Quote

Send the product name or CAS number, required quantity and specification. Availability, document scope and next steps are confirmed for your request.

Prefer WhatsApp? +86 152 4962 7274