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Efaproxiral

Cat. No. M14110
Efaproxiral Structure
Synonym:

RSR13

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Quality Control & Documentation
Biological Activity

Efaproxiral is a haemoglobin (Hb) synthetic allosteric modifier, decreases Hb-oxygen (O2) binding affinity and enhances oxygenation of hypoxic tumours during radiation therapy .

Chemical Information
Molecular Weight 341.4
CAS Number 131179-95-8
Solubility (25°C) DMSO ≥ 100 mg/mL
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] B Stea, et al. Efaproxiral red blood cell concentration predicts efficacy in patients with brain metastases

[2] Ryan H Engel, et al. Role of efaproxiral in metastatic brain tumors

[3] Margaret M Charpentier. Efaproxiral: a radiation enhancer used in brain metastases from breast cancer

[4] No authors listed. Efaproxiral: GSJ 61, JP 4, KDD 86, RS 4, RSR 13

[5] Ada Kolman. Efaproxiral (Allos Therapeutics)

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Keywords: Efaproxiral, RSR13 supplier, ROS, inhibitors, activators


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