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M9440

Sigma-Aldrich

Methyl-3,4-dephostatin

>98% (HPLC), powder

Synonym(s):

3,4-Dihydroxy-N-methyl-N-nitrosoaniline

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About This Item

Empirical Formula (Hill Notation):
C7H8N2O3
CAS Number:
173043-84-0
Molecular Weight:
168.15
MDL number:
MFCD01076450
UNSPSC Code:
12352200
PubChem Substance ID:
24278575
NACRES:
NA.77

Assay

>98% (HPLC)

form

powder

color

red-brown

solubility

DMSO: soluble 18 mg/mL
H2O: insoluble

storage temp.

2-8°C

SMILES string

CN(N=O)c1ccc(O)c(O)c1

InChI

1S/C7H8N2O3/c1-9(8-12)5-2-3-6(10)7(11)4-5/h2-4,10-11H,1H3

InChI key

XAKAQCMEMMZUEO-UHFFFAOYSA-N

Gene Information

human ... PTPN1(5770)

Application

Methyl-3,4-dephostatin has been used as:
  • an inhibitor for methyltransferases
  • a kinase-related inhibitor for human transglutaminase
  • a cysteine binding compound for screening its effect on C-terminal domain (CTD) of human immunodeficiency virus (HIV-1) capsid protein

Biochem/physiol Actions

Methyl-3,4-dephostatin is a tyrphostin-related compound isolated from Streptomyces MJ742-NF5 strain. It favors nerve growth factor-based neurite formation in pheochromocytoma PC12 cells. Being a stable analog of the nitrosoaniline dephostatin, it can mimic phosphotyrosine substrate for Tyrosyl-DNA phosphodiesterase I (TdpI).
Stable analog of dephostatin; selective protein tyrosine phosphatase 1B and SHPTP-1 inhibitor; does not inhibit CD45-associated phosphatases.

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A high throughput scintillation proximity imaging assay for protein methyltransferases
Ibanez G, et al.
Combinatorial Chemistry & High Throughput Screening, 15(5), 359-371 (2012)
Ebselen, a small-molecule capsid inhibitor of HIV-1 replication
Thenin-Houssier S, et al.
Antimicrobial Agents and Chemotherapy, 60(4), 2195-2208 (2016)
Christophe Marchand et al.
Molecular cancer therapeutics, 8(1), 240-248 (2009-01-14)
Tyrosyl-DNA phosphodiesterase I (Tdp1) resolves topoisomerase I (Top1)-DNA adducts accumulated from natural DNA damage as well as from the action of certain anticancer drugs. Tdp1 catalyzes the hydrolysis of the phosphodiester bond between the catalytic tyrosine residue of topoisomerase I
S Fujiwara et al.
Biochemical and biophysical research communications, 238(1), 213-217 (1997-09-23)
We studied the effect of the 3,4-dihydroxy analogue of dephostatin (3,4-dephostatin), an inhibitor of protein-tyrosine phosphatase (PTPase), on the differentiation of rat pheochromocytoma PC12 cells. 3,4-Dephostatin accelerated NGF-induced neurite formation in PC12h cells, a subline of PC12 cells, whereas the
T Watanabe et al.
The Journal of antibiotics, 48(12), 1460-1466 (1995-12-01)
We have synthesized derivatives of dephostatin, a protein tyrosine phosphatase (PTPase) inhibitor, to study the structure-activity relationships of this inhibitor. Inactive analogs revealed some insight into structural requirements or PTPase inhibitory activity of dephostatin. Both a nitroso group and phenolic
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