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Galactaric acid

CAS Number
526-99-8
EC Number
208-404-0
Chemical Formula
C6H10O8
Molecular Weight
210.14 g/mol

Description

Galactaric acid (CAS 526-99-8 ), also known commercially as mucic acid, is a naturally derived dicarboxylic acid obtained primarily from the oxidation of galactose or lactose. It functions as a chelating agent, pH buffer, and humectant across pharmaceutical, food, cosmetic, and water treatment applications. In pharmaceutical manufacturing, it acts as a sequestrant and acidulant in tablet formulations, helping to stabilize active ingredients sensitive to metal ion interference. Water treatment formulators incorporate it to chelate calcium and magnesium ions, reducing scale formation in process systems. In personal care products, its moisture-binding capacity supports humectant functionality in creams, serums, and leave-on treatments where sustained hydration is a formulation target. Food-grade applications include use as a buffering acid and mild chelating agent in processed food systems. These food-grade systems often require controlled pH and metal sequestration to maintain product stability. Galactaric acid is supplied as a white crystalline powder and is available in technical and pharmaceutical-grade specifications for various industrial needs. Purity levels typically range from 98% upward depending on the intended use and specific industry requirements. Buyers sourcing for regulated applications should confirm compliance documentation against relevant pharmacopeial or food-safety standards prior to procurement. This includes verifying adherence to USP , BP , or EP standards where applicable for medicinal or high-purity uses. Ensuring these quality benchmarks are met is essential for maintaining consistency and safety in complex chemical formulations. Contact us for supply of Galactaric acid Request Quote

Other Names (Synonyms)

(2S,3R,4S,5R)-2,3,4,5-tetrahydroxyhexanedioic acid | Mucic acid

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point214-215 °C
Boiling Point269.65°C (rough estimate)
Density1.5274 (rough estimate)
Appearancewhite to light beige fine crystalline powder
ColorWhite to Off-White
FormSolid
Water SolubilitySoluble in water.
Refractive Index1.5800 (estimate)

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29181990
Storage Class11 - Combustible Solids
WGK (Germany)2