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DOCUMENTATION_FORMAT: VOLATILE
SAMPLE_ID: L-Cysteine SA-W326305
MATERIAL_TYPE: Amino Acid
MATERIAL: L-Cysteine
FORMULA: C3H6O2NS
FORMULA_HTML: C3H6O2NS
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 white acicular grains ~2mm in length
Other Names: L-cysteine; cysteine; Half-cystine; Thioserine; Cystein; (R)-Cysteine; carbocysteine; L-(+)-Cysteine; beta-Mercaptoalanine; cisteina; Polycysteine; Cisteinum; Cysteinum; L Cysteine; b-Mercaptoalanine; acetylcysteine
CAS #: 52-90-4
Sigma Aldrich Product #: W326305
Sigma Aldrich Lot #: mkbf8590V
No results of analysis provided by Sigma Aldrich. Product advertised as greater than or equal to 97% purity
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:
Strong absorption by the N-H bonds and the large grain size results in very low infrared reflectance.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1b2b3b4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns