(-)-l-Malic acid
CAS 97-67-6
EC 202-601-5
Formula C4H6O5
MW 134.09 g/mol
Organic Acids Food & NutritionPharmaceuticals & HealthcarePersonal Care & Cosmetics Flavoring & AcidulantpH Regulation & BufferingPreservation & Biocide
Description
(-)-L-Malic Acid (CAS 97-67-6), also known as L-Apple Acid or L(-)-Malate, is the naturally occurring enantiomer of malic acid, a dicarboxylic hydroxy acid derived from fruit metabolism. It is registered under EC 202-601-5 and classified as an organic acid with the molecular formula C4H6O5.
In food and beverage formulations, L-Malic Acid lowers pH to inhibit microbial growth and delivers a smooth, lingering tartness that masks bitter off-notes in low-sugar products. In personal care, it functions as a pH buffer and skin conditioner by donating protons within the 3.5–5.5 range to maintain stratum corneum integrity.
L-Malic Acid is available in pharmaceutical and food grades meeting Ph.Eur., FCC, and REACH compliance requirements. It is supplied as a white crystalline powder or granules, typically in 25 kg bags or bulk formats. Procurement teams should confirm grade specification against intended application prior to ordering.
In food and beverage formulations, L-Malic Acid lowers pH to inhibit microbial growth and delivers a smooth, lingering tartness that masks bitter off-notes in low-sugar products. In personal care, it functions as a pH buffer and skin conditioner by donating protons within the 3.5–5.5 range to maintain stratum corneum integrity.
L-Malic Acid is available in pharmaceutical and food grades meeting Ph.Eur., FCC, and REACH compliance requirements. It is supplied as a white crystalline powder or granules, typically in 25 kg bags or bulk formats. Procurement teams should confirm grade specification against intended application prior to ordering.
Physical Properties
| Melting Point | 130-132 °C |
| Boiling Point | 167.16°C (rough estimate) |
| Density | 1.025 g/cm³ |
| Flash Point | 220 °C |
| Appearance | white crystalline powder or granules |
| Color | White |
| Odor | odorless |
| Form | Powder |
| Water Solubility | soluble |
| Vapor Pressure | 0Pa at 25℃ |
| Refractive Index | -6.5 ° (C=10, Acetone) |
| pH | 2.2 (10g/l, H2O, 20℃) |
| Log P | -1.68 |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319
P
P264P280P321P264+P265P302+P352P332+P317P337+P317P362+P364P305+P351+P338
Trade & Regulatory
| HS Code | 29181980 |
| WGK (Germany) | 3 |
Other Names
L-Malic acid(2S)-2-hydroxybutanedioic acidmalic acid(S)-malic acidapple acidL(-)-MALATE
Related Products
Raw Materials
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