Overview
Malonic acid (CAS 141-82-2 ) is a short-chain dicarboxylic acid used across pharmaceutical synthesis, specialty chemical manufacturing, and personal care formulation. It functions primarily as a reactive intermediate and pH buffering agent.
This versatile compound enables precise control in synthesis and formulation processes. In pharmaceutical manufacturing, it serves as a key building block in the synthesis of barbiturates and vitamin B1 via the malonic ester synthesis route.
Personal care formulators use it as a pH adjuster and mild preservative-boosting agent in skin care products. Controlled acidity supports formulation stability while maintaining the efficacy of active ingredients in various cosmetic applications.
In food applications, it acts as an acidulant and flavoring component, contributing a clean tart note to certain processed food products. The compound also functions as a catalyst precursor and chelating agent in specialty chemical processes.
Malonic acid is supplied as a white crystalline powder in a range of pack sizes from laboratory quantities to bulk industrial volumes. Standard commercial grades include technical grade and pharmaceutical-grade material.
Our high-purity material meets USP and BP specifications for pharmaceutical use. Food-grade material compliant with FCC standards is also available for flavor and food acidulant applications to ensure safety and quality.
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Physical Properties
| Melting Point | 135 °C (decomp) |
| Boiling Point | 135 °C |
| Density | 1.6 g/cm³ |
| Flash Point | 157°C |
| Appearance | Crystalline |
| Color | White |
| Form | Liquid |
| Water Solubility | 1400 g/L (20 ºC) |
| Vapor Pressure | 0-0.2Pa at 25℃ |
| Refractive Index | 1.4780 |
| pH | 3.17(1 mM solution);2.5(10 mM solution);1.94(100 mM solution) |
| Log P | -0.81 |
Safety & Handling
Danger GHS05 GHS07 Hazard Statements H302 Harmful if swallowed H315 Causes skin irritation H318 Causes serious eye damage H319 Causes serious eye irritation H335 May cause respiratory irritation Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29171910 |
| Storage Class | 13 - Non Combustible Solids |
| WGK (Germany) | 1 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 141-82-2
- EC Number
- 205-503-0
- Mol. Weight
- 104.06
- HS Code
- 29171910
- Category
- Catalysts & Catalyst Precursors