What is Caprylhydroxamic Acid and how is it identified?

Caprylhydroxamic Acid has CAS 7377-03-9, molecular formula C₈H₁₇NO₂ and molecular weight about 159.23. It is also called caprylyl hydroxamic acid, octanohydroxamic acid or N-hydroxyoctanamide, and is abbreviated CHA.

What is Caprylhydroxamic Acid used for?

CHA is used as a preservative-supporting ingredient or preservative booster in cosmetic and personal-care formulations. It is often combined with other organic acids or multifunctional ingredients to support broad-spectrum protection, especially in neutral-pH systems.

Which specifications should be confirmed when purchasing Caprylhydroxamic Acid?

Confirm assay, appearance, melting range, volatile content, residual hydroxylamine hydrochloride and color. Cosmetic grades commonly specify at least 99.0% assay, a melting range near 78-81 °C and low volatile or hydroxylamine residues.

How should Caprylhydroxamic Acid be stored and handled?

Store CHA in tightly closed containers in a cool, dry, light-protected area away from strong oxidizers and incompatible materials. Use dust controls and appropriate chemical-handling PPE when working with the powder.

Caprylhydroxamic Acid CAS 7377-03-9

Caprylhydroxamic Acid, CAS 7377-03-9, is an organic hydroxamic acid used as a preservative booster in cosmetic and personal-care formulations. Confirm the required assay, melting range and residual values for the intended formulation.

CAS: 7377-03-9
Synonyms: Octanohydroxamic acid, CHA, N-Hydroxyoctanamide, Caprylohydroxamic acid
Molecular Formula: C₈H₁₇NO₂
Grade: Industrial grade 99%
Package: 25kg/cardboard drum

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Product Description

Caprylhydroxamic Acid, CAS 7377-03-9, is an organic hydroxamic acid also named octanohydroxamic acid, N-hydroxyoctanamide or caprylhydroxamic acid and abbreviated CHA; the molecular formula is C₈H₁₇NO₂.

Synonyms: Octanohydroxamic acid; CHA; N-Hydroxyoctanamide; Caprylohydroxamic acid.

CAS: 7377-03-9.

Molecular formula: C₈H₁₇NO₂.

Molecular weight: 159.23.

It is a white crystalline powder that is easily soluble in propylene glycol, glycerin and surfactants.

Typical properties include a melting point of about 78-81 °C, assay of at least 99.0%, volatile content of at most 0.5% and residual hydroxylamine hydrochloride of at most 0.2%.

It is used as a preservative booster in cosmetic and personal-care formulations and is often combined with other organic acids or multifunctional ingredients for broad-spectrum protection.

It remains active from acidic to neutral pH, making it useful in neutral-pH and preservative-free claim systems where many traditional organic acids are less effective.

A typical use level is about 0.05-0.15%.

Confirm assay, appearance, melting range, volatile content, residual hydroxylamine hydrochloride and color.

Store in tightly closed containers in a cool, dry, light-protected area away from strong oxidizers, and use dust controls with appropriate chemical-handling PPE.

Confirm the current product-specific specification.

Confirm packaging with the requested quantity and destination requirements.

Document requirements should be confirmed from the current specification, SDS, COA, or other product-specific files.

Regulated-use suitability must be confirmed separately with current product-specific documentation.

The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

For an RFQ, state the intended use, required specification, quantity, packaging, destination, and document needs.

FAQ - Technical & Supply Chain

Q:
What is Caprylhydroxamic Acid and how is it identified?

A: Caprylhydroxamic Acid has CAS 7377-03-9, molecular formula C₈H₁₇NO₂ and molecular weight about 159.23. It is also called caprylyl hydroxamic acid, octanohydroxamic acid or N-hydroxyoctanamide, and is abbreviated CHA.
Q:
What is Caprylhydroxamic Acid used for?

A: CHA is used as a preservative-supporting ingredient or preservative booster in cosmetic and personal-care formulations. It is often combined with other organic acids or multifunctional ingredients to support broad-spectrum protection, especially in neutral-pH systems.
Q:
How does pH affect Caprylhydroxamic Acid performance?

A: Caprylhydroxamic acid remains active from acidic to neutral pH, which makes it useful in formulations where many traditional organic acids are less effective. Its antimicrobial-supporting activity generally decreases as the formulation becomes more alkaline.
Q:
Which specifications should be confirmed when purchasing Caprylhydroxamic Acid?

A: Confirm assay, appearance, melting range, volatile content, residual hydroxylamine hydrochloride and color. Cosmetic grades commonly specify at least 99.0% assay, a melting range near 78-81 °C and low volatile or hydroxylamine residues.
Q:
How should Caprylhydroxamic Acid be stored and handled?

A: Store CHA in tightly closed containers in a cool, dry, light-protected area away from strong oxidizers and incompatible materials. Use dust controls and appropriate chemical-handling PPE when working with the powder.

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