Kojic Acid CAS 501-30-4

Kojic Acid CAS 501-30-4 is supplied as a formulation raw material for cosmetic and personal care applications. It is commonly used in brightening, tone-evening, and related topical systems where ingredient identity, appearance, packaging, and handling consistency are important for formulation work.

Product Overview

Kojic Acid is supplied for use in cosmetic raw material and personal care formulation sectors. The product is generally presented as kojic acid powder and is identified under CAS 501-30-4, with common naming references including 5-hydroxy-2-hydroxymethyl-4-pyrone.

Evaluate Kojic Acid in the intended cosmetic formula for compatibility, colour and stability. Permitted product categories and use levels depend on the destination market and must be confirmed before commercial use.

Product Information / Specifications

Quality Control for Kojic Acid

For incoming quality control of Kojic Acid, specify the identity test and assay method. FTIR can support identity testing, while HPLC can be used for chromatographic assay and related-substance assessment under the stated method. HPLC and acid-base titration results should retain their respective test method and reporting basis when grades are compared. We can provide an HPLC chromatogram with applicable method information for the supplied grade. Review colour, moisture and relevant metal limits alongside assay.

Physical & Chemical Properties

• Melting Point: Commonly reported in the range of 152–155°C.
• Solubility: Kojic Acid can dissolve in water and in some polar organic solvents, but the achievable concentration differs by solvent and test conditions. Verify dissolution at the intended concentration, pH and processing temperature; do not assume that water, ethanol and acetone have the same dissolving capacity.
• Stability: Storage should avoid strong light, high heat, and oxidizing materials. The product may discolor under unsuitable storage conditions.

Applications

Kojic Acid is commonly applied in cosmetic and personal care formulations where brightening-oriented positioning is required.

• Brightening creams, gels, and lotion systems
• Tone-evening facial care formulations
• Topical cosmetic systems positioned for uneven skin tone appearance
• Formulation programs where kojic acid is selected as a functional personal care ingredient

Kojic Acid Dipalmitate (KAD) is an ester derivative to compare when an oil-phase ingredient is needed. It is a different substance from Kojic Acid: select a suitable solvent or oil phase and verify dissolution and finished-formula stability rather than substituting the two materials gram for gram.

For other ingredients used in brightening formulations, compare Ascorbyl Glucoside and 3-O-Ethyl Ascorbic Acid. These vitamin C derivatives are not synonyms for Kojic Acid. Select them according to the intended function, solubility, pH and formulation compatibility; a related application does not establish equal use levels or interchangeable performance.

Packaging

We specify light- and moisture-protective packaging for Kojic Acid in our quotation, according to the selected grade, quantity and destination.

Storage Conditions

Store in a cool, dry, and dark place. Keep the container tightly sealed and protected from moisture, excessive heat, and direct light exposure.

Keep Kojic Acid away from incompatible oxidizing materials. Refer to our TDS for grade-specific storage conditions and contact us for the applicable retest date or shelf life.

Safety Precautions

Handling should follow standard chemical raw material procedures. Avoid direct skin contact, eye contact, and inhalation of dust during transfer or formulation work.

Use suitable protective equipment when handling Kojic Acid. We can provide COA, TDS and SDS for the supplied grade.