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100072

Sigma-Aldrich

Isoxanthopterin

97%

Synonym(s):

2-Amino-4,7-dihydroxy-1,3,5,8-tetraazanaphthalene, 2-Amino-4,7-dihydroxypteridine, 2-Amino-4,7-pteridinediol

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About This Item

Empirical Formula (Hill Notation):
C6H5N5O2
CAS Number:
529-69-1
Molecular Weight:
179.14
Beilstein:
181594
EC Number:
208-469-5
MDL number:
MFCD00006696
UNSPSC Code:
12352103
PubChem Substance ID:
329748876

Assay

97%

SMILES string

NC1=NC2=C(N=CC(=O)N2)C(=O)N1

InChI

1S/C6H5N5O2/c7-6-10-4-3(5(13)11-6)8-1-2(12)9-4/h1H,(H4,7,9,10,11,12,13)

InChI key

GLKCOBIIZKYKFN-UHFFFAOYSA-N

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
06155LF
04901PF
02611LX

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R S Shen et al.
Biochimica et biophysica acta, 965(1), 9-15 (1988-04-14)
Pterins inhibit rat liver GTP cyclohydrolase I activity noncompetitively. Reduced pterins, such as 7,8-dihydro-D-neopterin, (6R,S)-5,6,7,8-tetrahydro-D-neopterin, 7,8-dihydro-L-biopterin, (6R)-5,6,7,8-tetrahydro-L-biopterin, L-sepiapterin, and DL-6-methyl-5,6,7,8-tetrahydropterin are approximately 12-times more potent as inhibitors than are oxidized pterins, such as D-neopterin, L-biopterin, and isoxanthopterin. They are also
N Blau et al.
Biochemical and molecular medicine, 58(2), 199-203 (1996-08-01)
The objectives of this study were to find additional diagnostic information for the evaluation of xanthine dehydrogenase deficiency and molybdenum cofactor deficiency. Patients were given an oral loading test with 10 mg/kg 5,6,7,8-tetrahydrobiopterin. Urine excretion of pterin and isoxanthopterin was
Burki Rajendar et al.
Bioorganic & medicinal chemistry letters, 17(13), 3682-3685 (2007-05-02)
At an abasic site in an oligo-DNA duplex, isoxanthopterin (IX)(dagger) can bind to thymine (T) and cytosine (C) with strong affinity compared to adenine and guanine, but the base selectivity for T against C is moderate. In order to improve
Highly sensitive assay for xanthine oxidase activity by high-performance liquid chromatography with fluorescence detection.
T Sasaoka et al.
Journal of chromatography, 424(2), 392-397 (1988-02-26)
Ciarán A Smyth et al.
Journal of biomedical optics, 16(7), 077007-077007 (2011-08-03)
Optical techniques toward the realization of sensitive and selective biosensing platforms have received considerable attention in recent times. Techniques based on interferometry, surface plasmon resonance, and waveguides have all proved popular, while spectroscopy in particular offers much potential. Raman spectroscopy
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