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DOCUMENTATION_FORMAT: VOLATILE
SAMPLE_ID: Xanthine SA-X0626
MATERIAL_TYPE: Benzene Derivative
MATERIAL: Xanthine
FORMULA: C5H4N4O2
FORMULA_HTML: C5H4N4O2
COLLECTION_LOCALITY: Purchased from Sigma Aldrich chemistry
COLLECTION_LATITUDE: Not Available # degrees and decimal minutes (N or S)
COLLECTION_LONGITUDE: Not Available # degrees and decimal minutes (W or E)
DATUM: Not Available # coordinate datum
ORIGINAL_DONOR:
CURRENT_SAMPLE_LOCATION: USGS Spectroscopy Lab, Denver, CO
ULTIMATE_SAMPLE_LOCATION: USGS Spectroscpy Lab, Denver, CO
SAMPLE_DESCRIPTION:
Sample is a white powder
Other Names: 2,6-Dihydroxypurine, Xanthin Pseudoxanthine, 2,6-dioxopurine, Isoxanthine, Xanthic oxide 69-89-6, 1H-Purine-2,6-diol, Purine-2,6-diol, 9H-Purine-2,6-diol 2,6(1,3)-Purinedion, 3,7-Dihydro-1H-purine-2,6-dione, Purine-2(3H),6(1H)-dione, 1H-Purine-2,6-dione 3,7-dihydro-, USAF CB-17, 9H-Purine-2,6-(1H,3H)-dione, 3,7-dihydropurine-2,6-dione, 2,6-Dioxo-1,2,3,6-tetrahydropurine, XAN, CHEBI:17712, Purine-2,6-(1H,3H)-dione, 2-Oxohypoxanthine, Xanthine (VAN) (8CI), Xanthine (VAN), CCRIS 994, EPA Pesticide Chemical Code 116900
CAS #: 69-89-6
Sigma Aldrich Product #: X0626
Sigma Aldrich Lot #: 110M0183MV
Appearance: Off White
Appearance Form: Powder
Solubility Color: Light Yellow Green
Solubility Turbidity: Clear
250 mg+ 5.0 mL 1M NaOH
EmM 9.19
Lambda Max of 277-278 nm, 0.1 M Carbonate buffer at pH 10.0
Purity (HPLC) 99.6 %
IMAGE_OF_SAMPLE: None
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: Analysis done by Sigma Aldrich, The Certificate of Analysis can be found on the Sigma Aldrich Website using the Product and Lot Numbers.
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1a2a3a4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns