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Merck

N8010

Sigma-Aldrich

4-Guanidino-benzoesäure-4-nitrophenylester -hydrochlorid

protease substrate, ≥95.0% (TLC), powder

Synonym(e):

4-Nitrophenyl-4-Guanidinobenzoat -hydrochlorid, pNPGB

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500 MG
CHF 324.00
1 G
CHF 573.00

CHF 324.00


Voraussichtliches Versanddatum28. Mai 2025



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500 MG
CHF 324.00
1 G
CHF 573.00

About This Item

Empirische Formel (Hill-System):
C14H12N4O4 · HCl
CAS-Nummer:
Molekulargewicht:
336.73
Beilstein:
8024554
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352204
PubChem Substanz-ID:
NACRES:
NA.32

CHF 324.00


Voraussichtliches Versanddatum28. Mai 2025


Produktbezeichnung

4-Guanidino-benzoesäure-4-nitrophenylester -hydrochlorid, protease inhibitor and substrate

Qualitätsniveau

Assay

≥95.0% (TLC)

Form

powder

Löslichkeit

formic acid: soluble 49.00-51.00 mg/mL

Lagertemp.

−20°C

SMILES String

Cl[H].NC(=N)Nc1ccc(cc1)C(=O)Oc2ccc(cc2)[N+]([O-])=O

InChI

1S/C14H12N4O4.ClH/c15-14(16)17-10-3-1-9(2-4-10)13(19)22-12-7-5-11(6-8-12)18(20)21;/h1-8H,(H4,15,16,17);1H

InChIKey

PKSBDZOBYIKNGY-UHFFFAOYSA-N

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Allgemeine Beschreibung

4-Nitrophenyl 4-guanidinobenzoate hydrochloride (pNPGB) is a trypsin substrate.[1] It is more water-soluble than 4-methylumbelliferyl 4-guanidinobenzoate and is preferred in spectrophotometric assay.[2]

Anwendung

4-Nitrophenyl 4-guanidinobenzoate hydrochloride has been used:
  • as a substrate for trypsin for active site titration experiments[3]
  • for pre-treating of mosquito eggs in the interplasmid transposition assay [4]
  • as a component of isotonic buffer to moisten filter paper for mosquito embryo collection[5]

Biochem./physiol. Wirkung

4-Nitrophenyl 4-guanidinobenzoate hydrochloride (pNPGB) inhibits phenoloxidase enzyme and delays embryo chorionic membrane hardening.[5]

Piktogramme

Corrosion

Signalwort

Danger

H-Sätze

Gefahreneinstufungen

Eye Dam. 1

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves


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M Llanos et al.
Journal of reproduction and fertility, 97(1), 173-178 (1993-01-01)
In this study we evaluated the effect of several trypsin inhibitors (p-aminobenzamidine: pAB; N-alpha-p-tosyl-L-lysine-chloromethyl-ketone: TLCK and p-nitrophenyl-p'-guanidino-benzoate: NPGM) on sperm binding and penetration of the human zona pellucida. Motile spermatozoa, selected by a two-step Percoll gradient, were incubated at 1
Mélia Magnen et al.
Biological chemistry, 399(9), 1053-1064 (2018-06-09)
Every year, influenza A virus (IAV) affects and kills many people worldwide. The viral hemagglutinin (HA) is a critical actor in influenza virus infectivity which needs to be cleaved by host serine proteases to exert its activity. KLK5 has been
F Catteruccia et al.
Proceedings of the National Academy of Sciences of the United States of America, 97(5), 2157-2162 (2000-02-19)
The ability of the Minos transposable element to function as a transformation vector in anopheline mosquitoes was assessed. Two recently established Anopheles gambiae cell lines were stably transformed by using marked Minos transposons in the presence of a helper plasmid
S P Leytus et al.
Biochimica et biophysica acta, 788(1), 74-86 (1984-07-17)
A theory and experimental method are presented to characterize the kinetics of fast-acting, irreversible proteinase inhibitors. The theory is based upon formal analysis of the case of an irreversible inhibitor competing with a substrate for the active-site of a proteinase.
D Collen et al.
The Journal of biological chemistry, 268(11), 8284-8289 (1993-04-15)
The mechanism of activation of human plasminogen by recombinant staphylokinase (STAR) was studied using the active site titrant p-nitrophenyl-p'-guanidinobenzoate (NPGB). NPGB prevented active site exposure in equimolar mixtures of plasminogen and STAR but reacted stoichiometrically with mixtures preincubated in the

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