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Merck

L2023

Sigma-Aldrich

Leupeptin trifluoroacetate salt

powder, ≥90% (HPLC)

Sinónimos:

Acetyl-Leu-Leu-Arg-al trifluoroacetate salt

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About This Item

Fórmula empírica (notación de Hill):
C20H38N6O4 · xC2HF3O2
Número de CAS:
Peso molecular:
426.55 (free base basis)
Número MDL:
Código UNSPSC:
12352202
ID de la sustancia en PubChem:
NACRES:
NA.77

Nombre del producto

Leupeptin trifluoroacetate salt, ≥90% (HPLC), microbial

origen biológico

microbial

Nivel de calidad

Ensayo

≥90% (HPLC)

Formulario

powder

solubilidad

H2O: 10 mM (Solutions are stable only a few hours. Stock solutions are stable up to 6 months at −20 °C.)

temp. de almacenamiento

−20°C

cadena SMILES

OC(=O)C(F)(F)F.CC(C)C[C@H](NC(C)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C=O

InChI

1S/C20H38N6O4.C2HF3O2/c1-12(2)9-16(24-14(5)28)19(30)26-17(10-13(3)4)18(29)25-15(11-27)7-6-8-23-20(21)22;3-2(4,5)1(6)7/h11-13,15-17H,6-10H2,1-5H3,(H,24,28)(H,25,29)(H,26,30)(H4,21,22,23);(H,6,7)/t15-,16-,17-;/m0./s1

Clave InChI

WUHGBZVQELGOMH-FRKSIBALSA-N

Acciones bioquímicas o fisiológicas

Inhibitor of serine and cysteine proteases. Inhibits plasmin, trypsin, papain, calpain, and cathepsin B. Does not inhibit pepsin, cathepsins A and D, thrombin, or α-chymotrypsin. Effective concentration 10-100 μM. There have been numerous studies using leupeptin to protect against hearing loss caused by acoustic overstimulation or the ototoxic antibiotic gentamicin. (Loss of cochlear hair cells is believed to be mediated by calpain.)

Nota de análisis

Leupeptin gives multiple peaks on HPLC because of the formation of tautomeric isomers in solution. Majority of contaminating peptide is racemized leupeptin.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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