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DL-Malic acid

Name: <SC>DL</SC>-Malic acid
Brand: SIGMA

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

Synonym(s):

(±)-2-Hydroxysuccinic acid, DL-Hydroxybutanedioic acid

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About This Item

Linear Formula:

HO₂CCH₂CH(OH)CO₂H

CAS Number:

6915-15-7

Molecular Weight:

134.09

UNSPSC Code:

12352106

NACRES:

NA.25

PubChem Substance ID:

57648231

EC Number:

230-022-8

Beilstein/REAXYS Number:

1723539

MDL number:

MFCD00064212

Assay:

99-100.5% (alkalimetric)

Form:

solid

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Properties

vapor density

4.6 (vs air)

Quality Segment

200

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)

SMILES string

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

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

Application

DL-Malic acid is an organic acid used for studying the impact on ultrasound pasteurization.[1] It has also been used to culture Pichia membraneafaciens.

Biochem/physiol Actions

Malic acid is a dicarboxylic acid and an important regulatory metabolite. It has been implicated in process of fruit ripening. Malic acid is important for the starch metabolism; low malic acid content results in transient accumulation of starch. Mitochondrial-malate metabolism modulates ADP-glucose pyrophosphorylase activity and redox status of plastids.[2]

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This Item	1.00383	M8304	94916
Sigma-Aldrich 27606 DL-Malic acid	SAFC 1.00383 DL-Malic acid	Sigma-Aldrich M8304 Malic acid	Supelco 94916 DL-Malic acid
assay 99-100.5% (alkalimetric)	assay -	assay -	assay -
solubility acetone: soluble 17.75 g/ 100 gm at 20 °C, dioxane: soluble 22.70 g/100 gm at 20 °C, methanol: soluble 82.70 g/100 g at 20 °C, benzene: insoluble, diethyl ether: soluble 0.84 g/100 gm at 20 °C, water: soluble 55.8 g/100 gm at 20 °C, ethanol: soluble 45.53 g/100 gm at 20 °C	solubility 558 g/L	solubility -	solubility H₂O: soluble 646.6 g/L at 20 °C
Quality Level 200	Quality Level 500	Quality Level 200	Quality Level 100
mp 129-133 °C, 131-133 °C (lit.)	mp 128-132 °C	mp 131-133 °C (lit.)	mp 131-133 °C (lit.)
form solid	form solid	form solid	form -
autoignition temp. 644 °F	autoignition temp. 349 °C	autoignition temp. 644 °F	autoignition temp. 644 °F

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pictograms

GHS07

signalword

Warning

hcodes

H319

pcodes

P264 - P280 - P305 + P351 + P338 - P337 + P313

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

397.4 °F

flash_point_c

203 °C

ppe

dust mask type N95 (US), Eyeshields, Gloves

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