Caprylohydroxamic Acid
AKA “OCTANOHYDROXAMIC ACID, N-Hydroxyoctanamide, 7377-03-9, Octanamide, N-hydroxy-, Caprylhydroxamic acid, Octanoylhydroxamic acid, UPY805K99W, DTXSID8074609, RefChem:167792”
Ingredient Facts
Caprylohydroxamic acid
AKA: OCTANOHYDROXAMIC ACID, N-Hydroxyoctanamide, 7377-03-9, Octanamide, N-hydroxy-, Caprylhydroxamic acid, Octanoylhydroxamic acid, UPY805K99W, DTXSID8074609, RefChem:167792
Synthetic · Buffering · EWG: 1
Synthetic
Skin Conditioner
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
See origin →
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
Provides scent
Skin Types
●all-skin-types
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An epidemic of allergic contact dermatitis caused by a new allergen, caprylhydroxamic acid, in moisturizers.
Ackermann L, Virtanen H, Korhonen L, Laukkanen A, Huilaja L et al.
Contact dermatitis, 2017
An epidemic of allergic contact dermatitis caused by a new allergen, caprylhydroxamic acid, in moisturizers.
Ackermann L, Virtanen H, Korhonen L, Laukkanen A, Huilaja L et al.
Contact dermatitis, 2017
Safety Assessment of Caprylhydroxamic Acid as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Caprylohydroxamic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: PubChem · CosIng · EWG