Mucic acid
CAS 526-99-8
EC 208-404-0
Formula C6H10O8
MW 210.14 g/mol
Organic Acids Personal Care & CosmeticsFood & NutritionWater TreatmentPharmaceuticals & Healthcare pH Regulation & BufferingChelation & SequestrationHumectant & Moisturizing
Description
Mucic acid (CAS 526-99-8), also known as galactaric acid or galactarate, is a naturally occurring dicarboxylic sugar acid derived from the oxidation of galactose. It carries no assigned E-code and is catalogued under EC 208-404-0. It belongs to the organic acids category and is commercially referenced as NSC 8127.
In personal care formulations, mucic acid functions as a chelator that binds metal ions to stabilise emulsions and extend shelf life. In food and pharmaceutical applications, it acts as a pH buffer, maintaining target acidity ranges through its diprotic acid equilibrium. Water treatment formulators use it as a sequestrant to control scale-forming calcium and magnesium ions.
Mucic acid is supplied as a white to light beige fine crystalline powder under HS code 29181990. It is subject to REACH registration requirements for EU supply. Procurement teams should confirm available grades against FCC or Ph.Eur. compendial standards depending on the target application.
In personal care formulations, mucic acid functions as a chelator that binds metal ions to stabilise emulsions and extend shelf life. In food and pharmaceutical applications, it acts as a pH buffer, maintaining target acidity ranges through its diprotic acid equilibrium. Water treatment formulators use it as a sequestrant to control scale-forming calcium and magnesium ions.
Mucic acid is supplied as a white to light beige fine crystalline powder under HS code 29181990. It is subject to REACH registration requirements for EU supply. Procurement teams should confirm available grades against FCC or Ph.Eur. compendial standards depending on the target application.
Physical Properties
| Melting Point | 214-215 °C |
| Boiling Point | 269.65°C (rough estimate) |
| Density | 1.5274 (rough estimate) |
| Appearance | white to light beige fine crystalline powder |
| Color | White to Off-White |
| Form | Solid |
| Water Solubility | Soluble in water. |
| Refractive Index | 1.5800 (estimate) |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319H335
P
P261P264P271P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29181990 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 2 |
Other Names
Galactaric acid(2S,3R,4S,5R)-2,3,4,5-tetrahydroxyhexanedioic acidGalactarateHexaric acidGALATARIC ACIDGALACTERIC ACID
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Derivatives
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