Sample Description USGS Spectral Library Version 7

USGS Spectral Library Version 7 Sample Description

Kokaly, R.F., Clark, R.N., Swayze, G.A., Livo, K.E., Hoefen, T.M., Pearson, N.C., Wise, R.A., Benzel, W.M., Lowers, H.A., Driscoll, R.L., and Klein, A.J., 2017, USGS Spectral Library Version 7: U.S. Geological Survey Data Series 1035, 61 p., https://doi.org/10.3133/ds1035
_{For more information on the library, see:
local link
web link}

TITLE: Ellagic Acid SA-E2250

DOCUMENTATION_FORMAT: VOLATILE

SAMPLE_ID: Ellagic Acid SA-E2250

MATERIAL_TYPE: Phenol; Plant Phenolic

MATERIAL: Ellagic Acid

FORMULA: C14H6O8

FORMULA_HTML: C₁₄H₆O₈

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: Raymond F. Kokaly

CURRENT_SAMPLE_LOCATION: USGS Spectroscopy Lab, Denver, CO

ULTIMATE_SAMPLE_LOCATION: USGS Spectroscpy Lab, Denver, CO

SAMPLE_DESCRIPTION:

Sample of light brown powder. Derived from tree bark.
Other Names: 4,4',5,5',6,6'-Hexahydroxydiphenic acid 2,6,2',6'-dilactone
CAS #: 476-66-4
Product #: E2250
Lot #: SLBD8693V
Analysis Performed by HPLC: Purity 97%
Water (by Karl Fischer): 2%
Infrared spectrum: Conforms to Structure

IMAGE_OF_SAMPLE:

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: 1a2a3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns