Lometrexol Property

Density 

1.56±0.1 g/cm3(Predicted)

storage temp. 

2-8°C

solubility 

DMSO: ≥5mg/mL

pka

3.60±0.10(Predicted)

form 

powder

color 

white to light yellow

Stability:

Hygroscopic

Safety

Hazard Codes 

T

Risk Statements 

25

Safety Statements 

45

RIDADR 

UN 2811 6.1 / PGIII

WGK Germany 

3

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

Precautionary statements

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

Lometrexol Chemical Properties,Usage,Production

Description

Glycinamide ribonucleotide formyltransferase (GART) is a folate-dependent enzyme required for de novo purine synthesis. Lometrexol is a folate analog antimetabolite with antineoplastic activity. At nanomolar conentrations, it inhibits GART preventing de novo purine synthesis, inhibiting DNA synthesis, arresting cells in the S phase of the cell cycle, and inhibiting tumor cell proliferation.

Uses

Lometrexol hydrate was used to compare the biological activity of potent inhibitor of human GARFTase.

Uses

It is an antifolate which inhibits glycinamide ribonucleotide formyltransferase (GARFT), an enzyme essential for de novo purine synthesis.

Biochem/physiol Actions

Glycinamide Ribonucleotide Formyltransferase (GARFTase) is a folate-dependent enzyme required for de novo purine synthesis. Lometrexate is a potent inhibitor of GARFTase, but does not interfere with enzymes involved in the synthesis of folate. Lometrexerol has been tested clinically for the treatment of various cancers as an anti-folate like agent, similar to methotrexate. Treatment with lometrexol rapidly decreases ATP and GTP levels, cell cycle arrest and induces apoptosis. Although depletion of nucleotide pools induces p53 expression, lometrexol is cytotoxic in both wild-type and mutant p53 expressing tumor cells. Lometrexol is cytotoxic in CCRF-CEm leukemia cells with an IC50 of 2.9 nM.