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Cat.No. 0476 - 2,4-Diamino-6-hydroxypyrimidine | C4H6N4O | CAS No. 56-06-4
Description: Inhibits tetrahydrobiopterin synthesis and thus NOS activity
Purity: ≥99% (HPLC)

Biological Activity

GTP cyclohydrolase I (GCH1) inhibitor. Prevents the de novo synthesis of tetrahydrobiopterin (BH4) and thus suppresses the activity of NO synthase. Exhibits more potent inhibition of GCH1 in the presence of GFRP (GTP cyclohydrolase feedback-regulatory protein).

Technical Data

M. Wt 126.12
Formula C4H6N4O
Storage Desiccate at +4°C
Purity ≥99% (HPLC)
CAS Number 56-06-4
PubChem ID 2944
Smiles NC1=NC(N)=NC(O)=C1

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

SolubilitySoluble in DMSO

Preparing Stock Solutions

The following data is based on the product molecular weight 126.12. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 7.93 mL 39.64 mL 79.29 mL
5 mM 1.59 mL 7.93 mL 15.86 mL
10 mM 0.79 mL 3.96 mL 7.93 mL
50 mM 0.16 mL 0.79 mL 1.59 mL

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Product Datasheets

Safety Datasheet


References are publications that support the products' biological activity.

Moore and Handy (1997) Selective inhibitors of neuronal nitric oxide synthase - is no NOS really good NOS for the nervous system? TiPs 18 204 PMID: 9226999

Werner-Felmayer et al (1993) Pteridine biosynthesis in human endothelial cells. Impact of NO-mediated formation of cyclic GMP. J.Biol.Chem. 268 1842 PMID: 7678411

Xie et al (1998) GTP cyclohydrolase I inhibition by the prototypic inhibitor 2,4-diamino-6-hydroxypyrimidine. J.Biol.Chem. 273 21091 PMID: 9694862

If you know of a relevant reference for 2,4-Diamino-6-hydroxypyrimidine, please let us know.

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Keywords: 2,4-Diamino-6-hydroxypyrimidine, supplier, GTP, cyclohydrolase, I, inhibitor, GCH1, GTPCH, GCH, inhibitors, inhibits, biosynthesis, tetrahydrobiopterin, BH4, NOS, Nitric, Oxide, synthase, Signaling, Signalling, Other, Nitric, Oxide, Other, Hydrolases, Other, Nitric, Oxide, Tocris Bioscience

Citations for 2,4-Diamino-6-hydroxypyrimidine

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