Caprylhydroxamic Acid

Caprylhydroxamic Acid 1
Caprylhydroxamic Acid 2
AKA: OCTANOHYDROXAMIC ACID, N-Hydroxyoctanamide, 7377-03-9, Caprylohydroxamic acid, Octanamide, Octanoylhydroxamic acid
Synthetic
Skin Conditioner
Plant Oil
Synthetic
Not Clean
used as ruminal urease inhibitor; structure; RN given refers to unlabeled parent cpd
Formula
C8H17NO2
Mol. Weight
159.23
CAS #
7377-03-9
Form
Liquid
State
Liquid
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Buffering
Removes Metal Ions
Binds metal ions
Traditional Use
A modern synthetic preservative and antimicrobial agent developed as part of cosmetic preservation science research. Created to provide broad-spectrum antimicrobial protection in formulations as an alternative to traditional preservatives.
EWG
4
CIR
Insufficient
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
all-shades-safe
Regulatory Status
USAunder review
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️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