L-Malic acid(CAS#97-67-6)
| Hazard Symbols | Xi – Irritant |
| Risk Codes | 36/37/38 – Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 – Wear suitable protective clothing. S37/39 – Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| RTECS | ON7175000 |
| TSCA | Yes |
| HS Code | 29181980 |
Introduction
L-malic acid is an organic acid. It is a colorless crystalline solid that is soluble in water and alcohol solvents. L-malic acid is widely found in nature, especially in plants and fruits, with a particularly high content in apples.L-malic acid has various uses. Additionally, L-malic acid is used as an acidity regulator, preservative, and antioxidant.There are several methods to obtain L-malic acid. One main method is through microbial fermentation. Certain microorganisms, such as Gluconobacter oxydans and lactic acid bacteria, can convert substrates (such as glucose or sugar alcohols) into L-malic acid. L-malic acid can also be prepared through chemical synthesis methods.Safety information: L-malic acid is considered relatively safe under normal usage conditions. Long-term or high-dose intake may cause digestive discomfort, such as diarrhea and heartburn. As a chemical substance, care should be taken to avoid contact with the skin and eyes; in case of contact, rinse with plenty of water.
