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Merck

8.14737

DL-Malic acid

for synthesis

Synonym(s):

DL-Malic acid, DL-Hydroxysuccinic acid, Hydroxybutanedioic acid

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About This Item

Empirical Formula (Hill Notation):
C4H6O5
CAS Number:
Molecular Weight:
134.09
UNSPSC Code:
12352106
EC Index Number:
230-022-8
NACRES:
NA.22
MDL number:
Assay:
≥99.0% (acidimetric)
Form:
solid
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Quality Segment

assay

≥99.0% (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

solubility

558 g/L

density

1.60 g/cm3 at 20 °C

bulk density

800 kg/m3

storage temp.

2-30°C

SMILES string

[O-]C(=O)C(O)CC(=O)[O-].[H+].[H+]

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

Application

  • Study on the inhibitory effect of DL‐malic acid on the phase structure and combustion characteristics of coal: This study examines the potential of DL-malic acid as an antioxidant inhibitor in the prevention of coal fires (Sun et al., 2024).

Analysis Note

Assay (acidimetric): ≥ 99.0 %
Melting range (lower value): ≥ 128 °C
Melting range (upper value): ≤ 132 °C
Identity (IR): passes test


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Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

397.4 °F

flash_point_c

203 °C


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

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Substances Subject to be Notified Names

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Certificates of Analysis (COA)

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