European Pharmacopoeia (EP) Reference Standard

Hydroxycarbamide, Hydroxyurea
Linear Formula:
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.


pharmaceutical primary standard




certificate is enclosed in each package

mfr. no.


Featured Industry

Pharmaceutical (small molecule)



storage temp.


SMILES string




InChI key


Gene Information

human ... RRM1(6240), RRM2(6241), RRM2B(50484)

Looking for similar products? Visit Product Comparison Guide

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

Anti-neoplastic. Inactivates ribonucleoside reductase by forming a free radical nitroxide that binds a tyrosyl free radical in the active site of the enzyme. This blocks the synthesis of deoxynucleotides, which inhibits DNA synthesis and induces synchronization or cell death in S-phase.


Unit quantity: 360 mg. Subject to change. The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.


Other Notes

Sales restrictions may apply.


Health hazard

Signal Word


Hazard Statements

Precautionary Statements


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
A Tefferi et al.
Leukemia, 28(12), 2300-2303 (2014-05-06)
The impact of calreticulin (CALR) mutations on long-term survival in essential thrombocythemia (ET) was examined in 299 patients whose diagnosis predated 2006. Mutational frequencies were 53% for Janus kinase 2 (JAK2), 32% for CALR and 3% for MPL; the remaining...
Alessandro M Vannucchi et al.
The New England journal of medicine, 372(5), 426-435 (2015-01-30)
Ruxolitinib, a Janus kinase (JAK) 1 and 2 inhibitor, was shown to have a clinical benefit in patients with polycythemia vera in a phase 2 study. We conducted a phase 3 open-label study to evaluate the efficacy and safety of...
Patrick T McGann et al.
Current opinion in hematology, 18(3), 158-165 (2011-03-05)
Sickle cell anemia (SCA) is a well characterized severe hematological disorder with substantial morbidity and early mortality. Hydroxyurea is a potent inducer of fetal hemoglobin, and evidence over the past 25 years has documented its laboratory and clinical efficacy for...
Pilvi Riihilä et al.
The Journal of investigative dermatology, 135(2), 579-588 (2014-09-04)
The incidence of cutaneous squamous cell carcinoma (cSCC) is rising worldwide. We have examined the role of complement components in the progression of cSCC. Analysis of cSCC cell lines (n=8) and normal human epidermal keratinocytes (n=11) with whole transcriptome profiling...
Russell E Ware
Blood, 115(26), 5300-5311 (2010-03-13)
Hydroxyurea has many characteristics of an ideal drug for sickle cell anemia (SCA) and provides therapeutic benefit through multiple mechanisms of action. Over the past 25 years, substantial experience has accumulated regarding its safety and efficacy for patients with SCA....

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon


Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.