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C7495

Sigma-Aldrich

Clofarabine

≥98% (HPLC)

Synonym(s):

(2R,3R,4S,5R)-5-(6-amino-2-chloropurin-9-yl)-4-fluoro-2-(hydroxymethyl)oxolan-3-ol, 2-chloro-2′-arabino-fluoro-2′-deoxyadenosine

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About This Item

Empirical Formula (Hill Notation):
C10H11ClFN5O3
CAS Number:
123318-82-1
Molecular Weight:
303.68
MDL number:
MFCD00871077
UNSPSC Code:
12352200
PubChem Substance ID:
329775078
NACRES:
NA.77

Assay

≥98% (HPLC)

form

powder

color

white

solubility

DMSO: >10 mg/mL

originator

Sanofi Aventis

storage temp.

2-8°C

SMILES string

Nc1nc(Cl)nc2n(cnc12)[C@@H]3O[C@H](CO)[C@@H](O)[C@@H]3F

InChI

1S/C10H11ClFN5O3/c11-10-15-7(13)5-8(16-10)17(2-14-5)9-4(12)6(19)3(1-18)20-9/h2-4,6,9,18-19H,1H2,(H2,13,15,16)/t3-,4+,6-,9-/m1/s1

InChI key

WDDPHFBMKLOVOX-AYQXTPAHSA-N

Gene Information

human ... POLA1(5422) , POLA2(23649) , POLD1(5424) , POLD2(5425) , POLD3(10714) , POLD4(57804) , POLE(5426) , POLE2(5427) , POLE3(54107) , PRIM1(5557) , PRIM2(5558) , RRM1(6240) , RRM2(6241) , RRM2B(50484)

Application

Clofarabine has been used in a cell viability assay to analyze the sensitivity of the isogenic cell lines towards clofarabine. It is also used to study the interaction of anticancer drug clofarabine with human serum albumin and human α-1 acid glycoprotein.

Biochem/physiol Actions

Clofarabine is a purine nucleoside antimetabolite. Clofarabine is toxic to nondividing lymphocytes and monocytes.
Clofarabine is a second-generation nucleoside analog, used in cancer treatments. Clofarabine is metabolized to 5′-triphosphate and is known to block DNA synthesis. The human equilibrative nucleoside transporters (hENT1 and hENT2) and human concentrative nucleoside transporter (hCNT2 and hCNT3) mediates clofarabine transport into the cell. It also serves as a substrate for mitochondrial deoxyguanosine kinase. Clofarabine is an inhibitor of ribonucleotide reductase. It resists the phosphorolytic cleavage catalyzed by purine nucleoside phosphorylase of bacterias. Clofarabine also withstands deamination by adenosine deaminase.

Features and Benefits

This compound is a featured product for Apoptosis research. Click here to discover more featured Apoptosis products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound was developed by Sanofi Aventis. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

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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Nobuko Hijiya et al.
Pediatric blood & cancer, 59(3), 417-422 (2012-02-23)
Clofarabine is a second-generation purine nucleoside analog and has significant anti-leukemic activity as a single agent. It is approved by the United States Food and Drug Administration (FDA) for the treatment of relapsed or refractory acute lymphoblastic leukemia (ALL) in
Results of a phase 1-2 study of clofarabine in combination with cytarabine (ara-C) in relapsed and refractory acute leukemias
Faderl S, et al.
Blood, 105(3), 940-947 (2005)
Michał Gorzkiewicz et al.
Macromolecular rapid communications, 40(15), e1900181-e1900181 (2019-05-29)
Poly(propyleneimine) glycodendrimers are proposed as nanocarriers for triphosphate forms of anticancer adenosine analogues to improve the efficiency of chemotherapy and to overcome drug resistance mechanisms. This approach has proven successful for fludarabine administration-an autonomous way of cellular entry of a
Hady Ghanem et al.
Leukemia & lymphoma, 54(4), 688-698 (2012-09-11)
Clofarabine is a second-generation purine nucleoside analog that has been synthesized to overcome the limitations and incorporate the best qualities of fludarabine and cladribine. Clofarabine acts by inhibiting ribonucleotide reductase and DNA polymerase, thereby depleting the amount of intracellular deoxynucleoside
Anna Zhenchuk et al.
Biochemical pharmacology, 78(11), 1351-1359 (2009-07-07)
Clofarabine, a next-generation deoxyadenosine analogue, was developed on the basis of experience with cladribine and fludarabine in order to achieve higher efficacy and avoid extramedullary toxicity. During the past decade this is the only drug granted approval for treatment of
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