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Merck

M1000

L-(−)-Malic acid

≥95% (titration)

Synonim(y):

(S)-(−)-2-Hydroxysuccinic acid, L-Hydroxybutanedioic acid

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Wybierz wielkość

100 G

374,00 zł

500 G

1760,00 zł

1 KG

2570,00 zł

374,00 zł


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Informacje o tej pozycji

Wzór liniowy:
HO2CCH2CH(OH)CO2H
Numer CAS:
Masa cząsteczkowa:
134.09
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.22
EC Number:
202-601-5
MDL number:
Beilstein/REAXYS Number:
1723541
Assay:
≥95% (titration)
Form:
powder

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assay

≥95% (titration)

form

powder

pKa (25 °C)

(1) 3.46, (2) 5.10

mp

101-103 °C ((lit.)), 101-103 °C (lit.)

solubility

water: 100 mg/mL, clear to very slightly hazy, colorless

density

1,595  g/cm3 at 68 °F

SMILES string

O[C@@H](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)/t2-/m0/s1

InChI key

BJEPYKJPYRNKOW-REOHCLBHSA-N

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Ta pozycja
11257702288M6413
assay

≥95% (titration)

assay

97%

assay

≥99%

assay

≥95%

Quality Level

300

Quality Level

200

Quality Level

100

Quality Level

200

form

powder

form

powder

form

-

form

powder

solubility

water: 100 mg/mL, clear to very slightly hazy, colorless

solubility

-

solubility

-

solubility

H2O: 0.5 M at 20 °C, clear, colorless

density

1,595  g/cm3 at 68 °F

density

-

density

-

density

-

mp

101-103 °C ((lit.)), 101-103 °C (lit.)

mp

101-103 °C (lit.)

mp

101-103 °C (lit.)

mp

101-103 °C (lit.)

General description

L-Malic acid is the naturally occurring isomer of malic acid, found mainly in sour and unripe fruits.

Application

L-(-)-Malic acid may be used to prepare:
  • diethyl (S)-malate
  • ethyl (R)-2-hydroxyl-4-phenylbutanoate
  • ethyl (S)-2-hydroxyl-4-phenylbutanoate
  • D-homophenylalanine ethyl ester hydrochloride
  • furo[3,2-i]indolizines
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pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Klasa składowania

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Wybierz jedną z najnowszych wersji:

Certyfikaty analizy (CoA)

Lot/Batch Number

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Masz już ten produkt?

Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

A practical synthesis of ethyl (R)-and (S)-2-hydroxy-4-phenylbutanoate and D-homophenylalanine ethyl ester hydrochloride from L-malic acid.
Lin WQ, et al.
Tetrahedron Asymmetry, 12(11), 1583-1587 (2001)
Lei Shi et al.
Science (New York, N.Y.), 368(6497) (2020-05-23)
Although perovskite solar cells have produced remarkable energy conversion efficiencies, they cannot become commercially viable without improvements in durability. We used gas chromatography-mass spectrometry (GC-MS) to reveal signature volatile products of the decomposition of organic hybrid perovskites under thermal stress.
A stereospecific synthesis of (-)-Bestatin from L-malic acid.
Norman BH and Morris ML.
Tetrahedron Letters, 33(45), 6803-6806 (1992)
Asymmetric synthesis of furo [3, 2-i] indolizines from L-malic acid.
Lee YS, et al.
Tetrahedron, 55(15), 4631-4636 (1999)
Mc Murry JE
Organic Chemistry , Biological Approach (2016)

Protokoły

Enzymatic Assay of Fumarase

Numer pozycji handlu globalnego

SKUNUMER GTIN
M1000-500G04061834037620
M1000-100G04061834037606
M1000-1KG04061834037613

Questions

1–2 of 2 Questions  
  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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  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

      Helpful?

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