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Merck

240176

Sigma-Aldrich

DL-苹果酸

DL-Malic acid

ReagentPlus®, ≥99%

别名:

(±)-2-羟基琥珀酸, DL-羟基丁二酸

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预计发货时间2025年4月21日详情


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50 G
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About This Item

线性分子式:
HO2CCH2CH(OH)CO2H
CAS号:
分子量:
134.09
Beilstein:
1723539
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.22

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预计发货时间2025年4月21日详情


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蒸汽密度

4.6 (vs air)

蒸汽压

<0.1 mmHg ( 20 °C)

产品线

ReagentPlus®

方案

≥99%

表单

solid

自燃温度

644 °F

mp

131-133 °C (lit.)

溶解性

acetone: soluble 17.75g/100g at 20 °C(lit.)
diethyl ether: soluble 0.84g/100g at 20 °C(lit.)
dioxane: soluble 22.7 g/100g at 20 °C(lit.)
ethanol: soluble 45.53g/100g at 20 °C(lit.)
methanol: soluble 82.7 g/100g at 20 °C(lit.)
water: soluble 55.8g/100g at 20 °C(lit.)
benzene: insoluble(lit.)

官能团

carboxylic acid
hydroxyl

SMILES字符串

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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一般描述

对 DL-苹果酸的配体交换毛细管电泳手性拆分进行了研究 [1]

应用

DL-苹果酸(MA)可用于:
  • 掺杂磷酸二氢铵(ADP)晶体以改善ADP晶体特性。[2]
  • 形成水溶性复合物Nb-MA,进一步与LiCl反应形成铌酸锂(LiNbO3)粉末。[3]
  • 作为单体与DL-乳酸合成聚(DL-乳酸-co-α,β-苹果酸)(PLMA)共聚物,经异硫氰酸荧光素(FITC)修饰后可涂覆磁性Fe3O4纳米颗粒,用作MRI T2型造影剂。[4]

法律信息

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Eye Irrit. 2

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

397.4 °F

闪点(°C)

203 °C

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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其他客户在看

Biodegradable magnetic-fluorescent magnetite/poly (DL-lactic acid-co-?, ?-malic acid) composite nanoparticles for stem cell labeling
Wang L, et al.
Biomaterials, 31(13), 3502-3511 (2010)
Chemical synthesis of lithium niobate powders (LiNbO3) prepared from water-soluble DL-malic acid complexes
Camargo ER and Kakihana M
Chemistry of Materials, 13(5), 1905-1909 (2001)
Growth of DL-malic acid-doped ammonium dihydrogen phosphate crystal and its characterization
Rajesh P and Ramasamy P
Journal of Crystal Growth, 311(13), 3491-3497 (2009)
S Kodama et al.
Electrophoresis, 22(15), 3286-3290 (2001-10-09)
Chiral resolution of native DL-malic acid was achieved by ligand-exchange capillary electrophoresis using copper(II)-L-tartrate as a chiral selector. Factors affecting chiral resolution, migration time, and peak area of malic acid were studied. The running conditions for optimum separation of malic
G Anneroth et al.
Scandinavian journal of dental research, 88(3), 214-218 (1980-06-01)
Two saliva stimulating drugs, solutions of Hybrin and malic acid were in an in vitro study found to have a heavy demineralizing effect on the root surface of the dental hard tissue. Consequently the drugs cannot be recommended to patients

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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