Is Kojic Acid the same material as Kojic Dipalmitate?

No. Kojic Acid is used in the water phase, while Kojic Dipalmitate is an oil-soluble derivative. Their incorporation methods, formulation behaviour and stability profile differ, so they should not be substituted gram for gram.

Which quality items matter when comparing Kojic Acid grades?

Compare assay, colour, moisture, related substances and relevant iron or metal limits using aligned test methods. These items can affect dissolution, finished-product appearance and formulation stability; assay alone is not a sufficient comparison.

What should be verified for a water-based Kojic Acid formula?

Confirm pH, metal-control strategy, processing temperature, light exposure and final packaging in the finished formula. Evaluate colour and stability over time, because the raw-material result does not predict performance in every system.

Kojic Acid CAS 501-30-4

Kojic Acid (CAS 501-30-4, EC 207-922-4) is a cosmetic formulation ingredient used in brightening and tone-evening systems. It should be distinguished from kojic-acid derivatives such as kojic dipalmitate. Purity, color, moisture, iron/heavy-metal limits, storage conditions and packaging should be confirmed for the selected grade. COA, TDS and SDS may be provided on request.

CAS: 501-30-4
Synonyms: Kojic acid, 5-hydroxy-2-hydroxymethyl-4-pyrone, Kojic acid powder, Pyrone derivative
Einecs: 207-922-4
Molecular Formula: C₆H₆O₄
Grade: Confirm assay, color, moisture, related substances and relevant metal limits
Package: Confirm light- and moisture-protective packaging for the selected grade

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Product Description

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.

1 Product Overview

2 Product Information / Specifications

3 Physical & Chemical Properties

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.

This material is suitable for topical formulation systems where brightening-oriented positioning, formulation compatibility, and controlled storage conditions are required. Packaging and supporting technical documentation may vary according to the supplied grade.

Product Information / Specifications

Product Name	Kojic Acid
CAS No.	501-30-4
EINECS No.	207-922-4
Molecular Formula	C6H6O4
Appearance	Colorless prismatic crystals or powder form supplied according to grade
Grade	Confirm assay, color, moisture, related substances and relevant metal limits
Synonyms	5-Hydroxy-2-hydroxymethyl-4-pyrone; Kojic Acid Powder

Physical & Chemical Properties

Melting Point: Commonly reported in the range of 152–155°C.
Solubility: Readily soluble in water, alcohol, and acetone; limited solubility may apply in some organic solvents.
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

Packaging

Confirm light- and moisture-protective packaging for the selected grade

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 away from incompatible oxidizing materials. Confirm the grade-specific storage conditions, retest date or shelf life from the current product documentation.

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.

Suitable protective equipment should be used during handling. Technical documents such as COA, TDS, and SDS may be provided according to the supplied grade.

FAQ - Technical & Supply Chain

Q:
Is Kojic Acid the same material as Kojic Dipalmitate?

A: No. Kojic Acid is used in the water phase, while Kojic Dipalmitate is an oil-soluble derivative. Their incorporation methods, formulation behaviour and stability profile differ, so they should not be substituted gram for gram.
Q:
Which quality items matter when comparing Kojic Acid grades?

A: Compare assay, colour, moisture, related substances and relevant iron or metal limits using aligned test methods. These items can affect dissolution, finished-product appearance and formulation stability; assay alone is not a sufficient comparison.
Q:
What should be verified for a water-based Kojic Acid formula?

A: Confirm pH, metal-control strategy, processing temperature, light exposure and final packaging in the finished formula. Evaluate colour and stability over time, because the raw-material result does not predict performance in every system.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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