DL-Malic acid

Product Name

DL-Malic acid, meets analytical specification of FCC, E296, 99-100.5% (alkalimetric)

InChI key

BJEPYKJPYRNKOW-UHFFFAOYSA-N

InChI

1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)

SMILES string

OC(CC(O)=O)C(O)=O

vapor density

4.6 (vs air)

vapor pressure

<0.1 mmHg ( 20 °C)

assay

99-100.5% (alkalimetric)

form

solid

optical activity

[α]/D −0.10 to +0.10°

autoignition temp.

644 °F

quality

meets analytical specification of FCC, E296

technique(s)

IR spectroscopy: suitable

impurities

≤0.05% maleic acid
≤0.1% water insoluble matter
≤1% fumaric acid

ign. residue

≤0.1% (as SO₄)

mp

129-133 °C
131-133 °C (lit.)

solubility

acetone: soluble 17.75 g/ 100 gm at 20 °C
diethyl ether: soluble 0.84 g/100 gm at 20 °C
dioxane: soluble 22.70 g/100 gm at 20 °C
ethanol: soluble 45.53 g/100 gm at 20 °C
methanol: soluble 82.70 g/100 g at 20 °C
water: soluble 55.8 g/100 gm at 20 °C
benzene: insoluble

cation traces

As: ≤3 mg/kg
Hg: ≤1 mg/kg
Pb: ≤2 mg/kg

suitability

complies for identity (IR)

application(s)

pharmaceutical (small molecule)

Quality Level

200