murphySodium C14-16 Olefin Sulfonate
molecular structure · PubChem
AKA: Sodium tetradecenesulphonate, Tetradecenesulfonic acid, Sodium salt (1:1), Hostapur OS, Mixed alkyl sulfates, NORFOX ALPHA XL, Alfanox 46 (KAO), RHODACAL LSS-40
Synthetic
Cleanser
Clean
OriginDerived from petroleum-based linear alpha olefins (LAO) or plant-derived fatty acids through oligomerization processes. Produced by sulfonation of C14-16 olefins using sulfur trioxide or oleum, then neutralized with sodium hydroxide.
Sulfonic acids, C14-16-alkane hydroxy and C14-16-alkene, sodium salts
Formula
C14H29NaO3S
Mol. Weight
300.44
CAS #
68439-57-6
Form
Liquid
State
33-37% Aqueous solution: Clear to slightly turbid pale yellow liquid; [SIDS Dossier] Bright yellow powder with a mild odor; [Redox Pty MSDS]
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Foaming
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Removes Impurities
Creates Lather
Cleansing Surfactant
Removes dirt and impurities
Creates cleansing foam
Lifts away dirt and oil
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Reviewed by CIR
Pregnancy
Yes
CIR Safety Findings
Mixed Skin Irritation Results
3 studies / 2 irritating / 1 mixed / reactions slight (CIR 45)
Mixed Sensitization Results
4 studies / 3 sensitizing / 1 not sensitizing (CIR 45)
Concentration Guide
Leave-on1.2–13.2%
Rinse-off0.12–19%
0%50%100%
CIR reported use · 2013 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR