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198994

Sigma-Aldrich

Sodium 3-methyl-2-oxobutyrate

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Sodium 3-methyl-2-oxobutyrate

95%

Synonym(s):

α-Ketoisovaleric acid sodium salt, 2-Keto-3-methylbutyric acid sodium salt, 3-Methyl-2-oxobutanoic acid sodium salt, 3-Methyl-2-oxobutyric acid sodium salt, Ketovaline sodium salt

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About This Item

Linear Formula:
(CH3)2CHCOCOONa
CAS Number:
Molecular Weight:
138.10
Beilstein:
4334552
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
Pricing and availability is not currently available.

Assay

95%

form

solid

greener alternative product score

old score: 14
new score: 9
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Atom Economy
Safer Solvents and Auxiliaries
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sustainability

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mp

220-230 °C (dec.) (lit.)

solubility

water: soluble 100 mg/mL, clear, colorless

functional group

ketone

greener alternative category

SMILES string

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

InChI

1S/C5H8O3.Na/c1-3(2)4(6)5(7)8;/h3H,1-2H3,(H,7,8);/q;+1/p-1

InChI key

WIQBZDCJCRFGKA-UHFFFAOYSA-M

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Application

Sodium 3-methyl-2-oxobutyrate (3-Methyl-2-oxobutanoic acid sodium salt) was used in the synthesis of (S)-2-hydroxy-3-methylbutanoic acid[1].

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Branched-chain alpha-keto acid dehydrogenase kinase (BDK) phosphorylates and inactivates the branched-chain alpha-keto acid dehydrogenase complex (BCKDC), which is the rate-limiting enzyme in the branched-chain amino acid catabolism. BDK has been believed to be bound to the BCKDC. However, recent our
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α-Isopropylmalate synthase (α-IPMS) catalyzes the metal-dependent aldol reaction between α-ketoisovalerate (α-KIV) and acetyl-coenzyme A (AcCoA) to give α-isopropylmalate (α-IPM). This reaction is the first committed step in the biosynthesis of leucine in bacteria. α-IPMS is homodimeric, with monomers consisting of

Questions

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  1. 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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  2. 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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