If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
W265501
DL-Malic acid
99%
Synonym(s):
(±)-2-Hydroxysuccinic acid, DL-Hydroxybutanedioic acid
About This Item
Recommended Products
biological source
synthetic
Quality Level
grade
Kosher
reg. compliance
FDA 21 CFR 1084.1069
FDA 21 CFR 117
vapor density
4.6 (vs air)
vapor pressure
<0.1 mmHg ( 20 °C)
Assay
99%
autoignition temp.
644 °F
mp
131-133 °C (lit.)
solubility
H2O: soluble 646.6 g/L at 20 °C
application(s)
flavors and fragrances
Documentation
see Safety & Documentation for available documents
food allergen
no known allergens
Organoleptic
odorless
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
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General description
Application
- Tetra-Ln(3+)-Implanted Tellurotungstates Covalently Modified by dl-Malic Acid: Proton Conduction and Photochromic Properties.: This innovative study showcases dl-Malic acid as a key component in the synthesis of advanced tellurotungstates, contributing to notable enhancements in proton conduction and photochromic properties, which are critical for applications in smart materials and sensors (Niu et al., 2024).
- Direct regeneration of spent LiFePO(4) materials via a green and economical one-step hydrothermal process.: dl-Malic acid is utilized in a green chemistry approach for the direct regeneration of lithium iron phosphate (LiFePO4) materials, demonstrating a sustainable pathway for battery recycling and highlighting its importance in promoting environmental sustainability (Yang et al., 2023).
- Chitin Extracted from the Shell of Blue Swimming Crabs (Portunus pelagicus Linn.) Inhibits NF-kappaB p65 in Ethanol-Induced Gastric Ulcerative Wistar Rats.: In this research, dl-Malic acid serves as a catalyst in the extraction and functional activity testing of chitin, which is shown to have significant anti-inflammatory effects, suggesting its potential in pharmaceutical applications (Amelia et al., 2023).
- Manganese-Titanium Mixed Ion Sieves for the Selective Adsorption of Lithium Ions from an Artificial Salt Lake Brine.: Highlighting the application of dl-Malic acid in the synthesis of ion-exchange materials, this study points towards its utility in enhancing the selective adsorption properties of manganese-titanium mixed ion sieves, crucial for lithium recovery from brines (Ding et al., 2023).
Disclaimer
Signal Word
Warning
Hazard Statements
Precautionary Statements
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
Personal Protective Equipment
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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Do you the chromatogram showing L-Malic acid and D-Malic acid standards isomers separation?
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The product documentation you are requesting may be supplied by our Technical Service team who can assist you with further troubleshooting and/or investigation. We kindly ask you to navigate to the link https://www.sigmaaldrich.com/techservice and click on "Product Documentation" under the Products Section with all the required information so that a member of our team can reach out to you to assist further. Thank you.
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