Sodium Propylparaben

AKA: 35285-69-9, Propylparaben sodium, Propyl 4-hydroxybenzoate sodium salt, Sodium propyl 4-hydroxybenzoate, Caswell No. 714A, Sodium propyl paraben, Sodium propyl hydroxybenzoate, Propylparaben sodium [USAN], Propyl p-hydroxybenzoate, Sodium salt
Synthetic
Preservative
Not Clean
OriginSynthesized from propionic acid and para-hydroxybenzoic acid through esterification reactions. Produced by combining para-hydroxybenzoic acid with propanol via acid-catalyzed esterification.
Sodium 4-propoxycarbonylphenoxide
Formula
C10H11NaO3
Mol. Weight
202.18
CAS #
35285-69-9
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Functions
Preservative
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Anti-Inflammatory
Antimicrobial
Fights Acne
Prevents microbial growth
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Caution
Concentration Guide
Leave-on0.000017–0.28%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2020
Regulatory Status
USA✔ permitted
EU✔ permitted
JAPAN✔ permitted
CANADA✔ permitted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR