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637858

Sigma-Aldrich

2-Keto-3-(methyl-d3)-butyric acid-1,2,3,4-13C4, 3-d sodium salt

99 atom % 13C, 98 atom % D, ≥99% (CP)

Sinônimo(s):

α-Keto-3-(methyl-d3)-butyric acid-1,2,3,4-13C4,3-d sodium, α-Ketoisovaleric acid-13C4,d3 sodium salt, 2-Ketoisovaleric acid-13C4,d3 sodium salt, 3-Methyl-d3--2-oxobutanoic acid-13C4,d sodium salt, Sodium α-ketoisovalerate-3-(methyl-d3),1,2,3,4-13C4,3-d sodium salt

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About This Item

Fórmula linear:
13CH313CD(CD3)13CO13CO2Na
Peso molecular:
146.09
Número MDL:
Código UNSPSC:
12352106
ID de substância PubChem:
NACRES:
NA.12

pureza isotópica

99 atom % 13C
98 atom % D

Ensaio

≥99% (CP)

forma

solid

técnica(s)

bio NMR: suitable

pf

227-230 °C (lit.)

alteração de massa

M+8

cadeia de caracteres SMILES

[Na+].[2H]C([2H])([2H])[13C]([2H])([13CH3])[13C](=O)[13C]([O-])=O

InChI

1S/C5H8O3.Na/c1-3(2)4(6)5(7)8;/h3H,1-2H3,(H,7,8);/q;+1/p-1/i1D3,2+1,3+1D,4+1,5+1;

chave InChI

WIQBZDCJCRFGKA-XCPSOYJTSA-M

Embalagem

This product may be available from bulk stock and can be packaged on demand. For information on pricing, availability and packaging, please contact Stable Isotopes Customer Service.

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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Eleni Makraki et al.
Biomolecular NMR assignments, 14(2), 265-268 (2020-06-21)
β-glucosidases have received considerable attention due to their essential role in bioethanol production from lignocellulosic biomass. β-glucosidase can hydrolyse cellobiose in cellulose degradation and its low activity has been considered as one of the main limiting steps in the process.
Soumya P Behera et al.
Nature communications, 11(1), 5547-5547 (2020-11-05)
Methyl-NMR enables atomic-resolution studies of structure and dynamics of large proteins in solution. However, resonance assignment remains challenging. The problem is to combine existing structural informational with sparse distance restraints and search for the most compatible assignment among the permutations.

Artigos

Sigma-Aldrich presents an article about the selective protonation of methyl groups in highly deuterated proteins. In which the structural NMR studies of small proteins, a maximum number of proton chemical shifts are usually assigned and NOEs connecting large numbers of sites are subsequently quantified in terms of distance restraints that are then used to obtain an ensemble of structures.

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