Name: Fludarabine (NSC 118218) Phosphate
Brand: Selleck Chemicals
SKU: S1229
Availability: InStock
Rating: 5 (59 reviews)

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Quality Control

Batch: Purity: 99.91%

99.91

Related Targets	HDAC PARP ATM/ATR DNA-PK WRN Topoisomerase PPAR Sirtuin Casein Kinase eIF
Other DNA/RNA Synthesis Inhibitors	CX-5461 (Pidnarulex) B02 SCR7 Favipiravir (T-705) EED226 BMH-21 RK-33 Triapine (3-AP) Carmofur YK-4-279

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Incubation Time	Activity Description
HL60 cells	Proliferation assay	48 h	Antiproliferative activity against human HL60 cells assessed as cell growth inhibition after 48 hrs by MTT assay, IC50=0.09 μM
MCF7 cells	Proliferation assay	48 h	Antiproliferative activity against human MCF7 cells assessed as cell growth inhibition after 48 hrs by MTT assay, IC50=0.13 μM
KG1 cells	Proliferation assay	48 h	Antiproliferative activity against human KG1 cells assessed as cell growth inhibition after 48 hrs by MTT assay, IC50=0.15 μM
Raji cells	Proliferation assay	48 h	Antiproliferative activity against human Raji cells assessed as cell growth inhibition after 48 hrs by MTT assay, IC50=0.4 μM
K562 cells	Proliferation assay	48 h	Antiproliferative activity against human K562 cells assessed as cell growth inhibition after 48 hrs by MTT assay, IC50=0.4 μM
ZR-75-1 cells	Proliferation assay	48 h	Antiproliferative activity against human ZR-75-1 cells assessed as cell growth inhibition after 48 hrs by MTT assay, IC50=0.6 μM
MOLT3 cells	Proliferation assay	48 h	Antiproliferative activity against human MOLT3 cells assessed as cell growth inhibition after 48 hrs by MTT assay, IC50=0.95 μM
M-HeLa cells	Proliferation assay	48 h	Antiproliferative activity against human M-HeLa cells assessed as cell growth inhibition after 48 hrs by MTT assay, IC50=2 μM
SK-UT-1B cells	Proliferation assay	48 h	Antiproliferative activity against human SK-UT-1B cells assessed as cell growth inhibition after 48 hrs by MTT assay, IC50=6 μM
Click to View More Cell Line Experimental Data

Solubility

In vitro
Batch:

DMSO : 73 mg/mL (199.88 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : 3 mg/mL

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	365.21	Formula	C₁₀H₁₃FN₅O₇P	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	75607-67-9	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	F-ara-A Phosphate, NSC 118218 Phosphate			Smiles	C1=NC2=C(N=C(N=C2N1C3C(C(C(O3)COP(=O)(O)O)O)O)F)N

Mechanism of Action

Targets/IC₅₀/Ki	DNA polymerase α (Cell-free assay) 1.1 μM(Ki ) DNA polymerase δ (Cell-free assay) 1.3 μM(Ki)
In vitro	Fludarabine Phosphate is converted to F-ara-ATP in cells and then incorporated into DNA in a self-limiting manner. This compound competes with dATP for incorporation into the A site of the extending DNA strand, which results in termination of DNA strand elongation. Human DNA polymerase α incorporates more of this chemical into DNA than polymerase δ. It completively inhibits DNA polymerase α and DNA polymerase δ with K_i of 1.1 μM and 1.3 μM, respectively. DNA polymerase δ is also able to excise the incorporated Fludarabine Phosphate from DNA in vitro.
In vivo	Fludarabine Phosphate is toxic for tumor-free mice. The maximum tolerated dose (LD10) of this compound administered as a single dose is 234 mg/kg. The 50% lethal dose is 375 mg/kg. This chemical administered as a single dose induces fewer number of cells surviving therapy in mice bearing P388 leukemia, accompanied by greater percentage of increase in life span (110%) and increased median survival time.
References	[1] https://pubmed.ncbi.nlm.nih.gov/1697861/ [2] https://pubmed.ncbi.nlm.nih.gov/6210262/ [3] https://pubmed.ncbi.nlm.nih.gov/7083151/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT05039892	Not yet recruiting	CholangiocarcinomaAdult	3D Medicines (Beijing) Co. Ltd.\|3D Medicines	December 2024	Phase 2
NCT06377293	Not yet recruiting	End-Stage Kidney Disease	Far Eastern Memorial Hospital	November 2024	Not Applicable
NCT06398002	Not yet recruiting	Secondary Hyperparathyroidism\|End-stage Kidney Disease	Iain Bressendorff\|Herlev Hospital	August 1 2024	Phase 2
NCT06383403	Not yet recruiting	Primary Biliary Cholangitis	Ipsen	July 1 2024	Phase 3
NCT06302439	Not yet recruiting	Ectonucleotide Pyrophosphatase/Phosphodiesterase 1 Deficiency\|ATP-Binding Cassette Subfamily C Member 6 Deficiency	Inozyme Pharma\|GACI Global	May 2024	--

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Fludarabine (NSC 118218) Phosphate DNA Synthesis/STAT1 Inhibitor

Chemical Structure

Molecular Weight: 365.21