Efaproxiral Property

Melting point:

48-50°C

Boiling point:

554.5±50.0 °C(Predicted)

Density 

1.202±0.06 g/cm3(Predicted)

storage temp. 

Refrigerator

solubility 

DMSO (Slightly), Methanol (Slightly)

form 

Solid

pka

3.26±0.10(Predicted)

color 

Off-White to Tan

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P330Rinse mouth.

P501Dispose of contents/container to..…

Efaproxiral Chemical Properties,Usage,Production

Description

Efaproxiral is an allosteric hemoglobin (Hb) modifier that reduces the affinity of Hb for oxygen, increasing the diffusion of oxygen from blood to tissue. In isolated human whole blood, efaproxiral (1.75 mM) increases the partial pressure of oxygen at which Hb is 50% saturated (p50) from 26.75 to 38.63 mm Hg and decreases the percent oxyhemoglobin (Hb-O₂) saturation from 48 to 33.8% at a partial oxygen pressure (pO₂) of 26 mm Hg. Efaproxiral (150 mg/kg) increases tumor pO₂ from 5.2 to 13.1 mm Hg 30 minutes after administration in a RIF-1 mouse fibrosarcoma flank tumor model. Efaproxiral (100 μM) enhances radiation-induced cytotoxicity in EMT6 mouse breast cancer cells grown under hypoxic conditions and increases radiosensitization and inhibits tumor growth in a hypoxic Lewis lung tumor mouse model when administered at a dose of 100 mg/kg. It also increases the running capacity of normal mice and mice with left coronary artery (LCA) ligation-induced myocardial infarction (MI) when administered at a dose of 150 mg/kg.

Chemical Properties

Off-White to Tan Solid

Uses

Allosteric modifier of hemoglobin (HB). Binds in the central water cavity of the Hb molecule causing a conformational change such that bound oxygen is released more readily. Antineoplastic adjunct (radiosensitizer).