Glutaric acid
CAS 110-94-1
EC 203-817-2
Formula C5H8O4
MW 132.11 g/mol
Organic Acids Food & NutritionPersonal Care & CosmeticsPharmaceuticals & Healthcare CatalysisFlavoring & AcidulantPreservation & BiocidepH Regulation & Buffering
Description
Glutaric acid (CAS 110-94-1, EC 203-817-2) is a five-carbon dicarboxylic acid also known as pentanedioic acid or NSC 9238. It carries no assigned E-code and is not classified as a direct food additive, though it functions as an intermediate and processing aid across regulated industries.
In food and beverage formulations, glutaric acid acts as a pH buffer and mild acidulant, contributing a smooth tartness without the sharp bite of shorter-chain diacids. In personal care, it functions as a skin-conditioning agent by supporting the acid mantle, and in pharmaceutical synthesis it serves as a reactive intermediate and catalyst in esterification processes.
Glutaric acid is supplied as a crystalline powder and is available in technical and high-purity grades compliant with REACH registration requirements. Procurement quantities typically range from kilogram laboratory packs to multi-tonne bulk. Buyers should confirm grade suitability against FCC or Ph.Eur. specifications for regulated end-use applications.
In food and beverage formulations, glutaric acid acts as a pH buffer and mild acidulant, contributing a smooth tartness without the sharp bite of shorter-chain diacids. In personal care, it functions as a skin-conditioning agent by supporting the acid mantle, and in pharmaceutical synthesis it serves as a reactive intermediate and catalyst in esterification processes.
Glutaric acid is supplied as a crystalline powder and is available in technical and high-purity grades compliant with REACH registration requirements. Procurement quantities typically range from kilogram laboratory packs to multi-tonne bulk. Buyers should confirm grade suitability against FCC or Ph.Eur. specifications for regulated end-use applications.
Physical Properties
| Melting Point | 97.5-98 °C |
| Boiling Point | 200 °C @ Press: 20 Torr |
| Density | 1.429 g/cm³ @ Temp: 15 °C |
| Flash Point | 200°C/20mm |
| Appearance | white or off-white crystals |
| Color | Orange |
| Form | Crystalline Powder |
| Water Solubility | 430 g/L (20 ºC) |
| Vapor Pressure | 0.022 hPa (18.5 °C) |
| Refractive Index | nD106 1.41878 |
| pH | 3.7(1 mM solution);3.17(10 mM solution);2.66(100 mM solution) |
| Log P | -0.26 at 25℃ |
Safety & Handling (Learn More)
Danger GHS05 GHS07
H
H314H318H319
P
P260P264P280P316P317P321P363P405P501P264+P265P304+P340P337+P317P301+P330+P331P302+P361+P354P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29171990 |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| WGK (Germany) | 1 |
Other Names
pentanedioic acidGlutaratePentandioatePentanedioatePentandioic acid
Related Products
Raw Materials
Derivatives
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