Cytosine β-D-arabinofuranoside

crystalline, ≥90% (HPLC)

(β-D-Arabinofuranosyl)cytosine, Cytarabine, Arabinosylcytosine, Cytosine arabinoside, Ara-C, Arabinocytidine
Empirical Formula (Hill Notation):
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Quality Level


≥90% (HPLC)



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100, 500 mg in poly bottle
1, 5 g in poly bottle

Biochem/physiol Actions

Ara-C incorporates into DNA and inhibits DNA replication by forming cleavage complexes with topoisomerase I resulting in DNA fragmentation; does not inhibit RNA synthesis. Anti-leukemia agent.

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.


Exclamation markHealth hazard

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Hazard Statements


Repr. 2 - Skin Sens. 1


11 - Combustible Solids

WGK Germany


Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Sonia G Das et al.
Journal of medicinal chemistry, 54(16), 5937-5948 (2011-07-26)
Multidrug resistance (MDR) in cancer is a phenomenon in which administration of a single chemotherapeutic agent causes cross-resistance of cancer cells to a variety of therapies even with different mechanisms of action. Development of MDR against standard therapies is a...
Hamed I Ali et al.
Bioorganic & medicinal chemistry, 15(1), 242-256 (2006-10-20)
Novel 2-deoxo-2-phenyl-5-deazaflavins and 2-deoxo-2-phenylflavin-5-oxides were prepared as a new class of antitumor agents and showed significant antitumor activities against NCI-H 460, HCT 116, A 431, CCRF-HSB-2, andKB cell lines. In vivo investigation, 2-deoxo-10-methyl-2-phenyl-5-deazaflavin exhibited the effective antitumor activity against A...
Bob Löwenberg
Blood, 121(1), 26-28 (2013-01-05)
High-dose cytarabine applied during remission induction or as consolidation after attainment of a complete remission has become an established element in the treatment of adults with acute myeloid leukemia. Recent evidence has challenged the need for these exceptionally high-dose levels...
Changyi Ji et al.
Autophagy, 15(7), 1199-1213 (2019-02-13)
A major cellular catabolic pathway in neurons is macroautophagy/autophagy, through which misfolded or aggregation-prone proteins are sequestered into autophagosomes that fuse with lysosomes, and are degraded. MAPT (microtubule-associated protein tau) is one of the protein clients of autophagy. Given that...
Alberto Diez-Torrubia et al.
Journal of medicinal chemistry, 53(2), 559-572 (2009-12-17)
Here we explore the applicability of the dipeptidyl peptidase IV (DPPIV/CD26) based prodrug approach to a variety of amine-containing drugs. Efficient procedures have been developed for the synthesis of dipeptide and tetrapeptide amide prodrugs including N-acylation protocols of the exocyclic...
Neoplastic cells are highly dependent on the de novo synthesis of nucleotides to maintain sufficient pools to support DNA replication and the production of RNA.
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DNA damage and repair mechanism is vital for maintaining DNA integrity. Damage to cellular DNA is involved in mutagenesis, the development of cancer among others.
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Apoptosis, or programmed cell death (PCD), is a selective process for the removal of unnecessary, infected or transformed cells in various biological systems. As it plays a role in the homeostasis of multicellular organisms, apoptosis is tightly regulated through two principal pathways by a number of regulatory and effector molecules.
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n proliferating cells, the cell cycle consists of four phases. Gap 1 (G1) is the interval between mitosis and DNA replication that is characterized by cell growth. Replication of DNA occurs during the synthesis (S) phase, which is followed by a second gap phase (G2) during which growth and preparation for cell division occurs. Together, these three stages comprise the interphase phase of the cell cycle. Interphase is followed by the mitotic (M) phase.
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