1.00382

DL-Malic acid

for biochemistry

• Synonym(s): DL-Malic acid, DL-Hydroxysuccinic acid, Hydroxybutanedioic acid
• Empirical Formula (Hill Notation): C₄H₆O₅
• CAS Number: 6915-15-7
• Molecular Weight: 134.09
• MDL number: MFCD00064212
• UNSPSC Code: 12352106
• EC Index Number: 230-022-8
• NACRES: NA.21

Properties

• Quality Level: 100
• Assay: ≥99.5% (acidimetric)
• form: solid
• autoignition temp.: 349 °C
• potency: >3200 mg/kg LD₅₀, oral (Rat)
• pH: 2.3 (20 °C, 10 g/L in H₂O)
• mp: 128-132 °C
• transition temp: flash point 203 °C
• density: 1.60 g/cm³ at 20 °C
• bulk density: 800 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)
• InChI key: BJEPYKJPYRNKOW-UHFFFAOYSA-N

Description

Analysis Note

Assay (acidimetric): ≥ 99.5 %
Identity (IR-spectrum): passes test
Melting point: 128 - 132 °C
Optical rotation (20 %; water): -0.1 - 0.1 °
Fe (Iron): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Related substances (HPLC) (Impurity A (fumaric acid)): ≤ 1.0 %
Related substances (HPLC) (Impurity B (maleic acid)): ≤ 0.05 %
Related substances (HPLC) (any other impurity): ≤ 0.1 %
Related substances (HPLC) (Sum of all other impurities): ≤ 0.5 %

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H319
• Precautionary Statements: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): 397.4 °F
• Flash Point(C): 203 °C