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United States Pharmacopeia (USP) Reference Standard

(β-D-Arabinofuranosyl)cytosine, Cytarabine, Arabinosylcytosine, Cytosine arabinoside, Cytosine β-D-arabinofuranoside, Ara-C, Arabinocytidine
Empirical Formula (Hill Notation):
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PubChem Substance ID:


pharmaceutical primary standard




pharmaceutical (small molecule)



storage temp.


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InChI key


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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

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.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

USP issued SDS can be found here.
Sales restrictions may apply.


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Hazard Statements

Precautionary Statements

Hazard Classifications

Repr. 2 - Skin Sens. 1

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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