Isopropylamine Dodecylbenzenesulfonate

AKA: Arylan PWS, Rhodacal 330, Siponate 330, Nansa YS 94, Atlas G 711, Witconate P 10-59, Atlas G 3300, G 711
Synthetic
Cleanser
Not Clean
Dodecylbenzenesulphonic acid, compound with isopropylamine (1:1)
Formula
C21H39NO3S
Mol. Weight
385.60
CAS #
26264-05-1
Form
Liquid
State
Dodecylbenzenesulfonic acid, [isopropylamine salt] appears as off-white solid with a sweet petroleum odor. May float or sink and mix with water. (USCG, 1999)
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Removes Impurities
Cleansing Surfactant
Traditional Use
Synthetic surfactant developed in the mid-20th century for cleansing and emulsifying applications in cosmetics. Created as a replacement for earlier surfactants to provide better cleaning power with reduced skin irritation.
EWG
5
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUpermitted
JAPANpermitted
CANADApermitted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed1 review
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR