Xanthopterin hydrate

• CAT Number: I018745
• CAS Number: 5979-01-1
• Molecular Formula: C6H7N5O3
• Molecular Weight: 197.15
• Purity: ≥95%
• Synonyms: 2-amino-3,5-dihydropteridine-4,6-dione;hydrate
• InChI: InChI=1S/C6H5N5O2.H2O/c7-6-10-4-3(5(13)11-6)9-2(12)1-8-4;/h1H,(H,9,12)(H3,7,8,10,11,13);1H2
• InChIKey: GXYCFNCAIXIUMR-UHFFFAOYSA-N
• SMILES: C1=NC2=C(C(=O)NC(=N2)N)NC1=O.O

Xanthopterin hydrate, an unconjugated pteridine compound, is the main component of the yellow granule in the Oriental hornet bear wings, produces a characteristic excitation/emission maximum at 386/456 nm[2]. Xanthopterin hydrate(XPT) causes renal growth and hypertrophy in rat[1].
Xanthopterin hydrate inhibits RNA synthesis[4].
Xanthopterin (7.8-250 mM; 24 hours) show a significant reduction in mitochondrial activity with respect to controls (IC50=109 mM)[2].

Reference

[1]. Xanthopterin (XPT), an unconjugated pteridine compound, affects cell growth and differentiation. When injected into rats, XPT has caused changes that have been interpreted as renal growth and hypertrophy.
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[2]. Lord JL, et al. Cytotoxicity of xanthopterin and isoxanthopterin in MCF-7 cells. Cancer Lett. 2005 May 10;222(1):119-24.
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[3]. Plotkin M, et al. Xanthopterin in the Oriental hornet (Vespa orientalis): light absorbance is increased with maturation of yellow pigment granules. Photochem Photobiol. 2009 Jul-Aug;85(4):955-61.
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[4]. Ziegler I, et al. Pterins and the regulation of lymphocyte activation on the mode of xanthopterin action. Hoppe Seylers Z Physiol Chem. 1984 Jun;365(6):667-73.
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