Validation Log
2025-12-15 01:16:00.993219
mwtab Python Library Version: 2.0.0
Source:        https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN004471/mwtab/txt
Study ID:      ST002754
Analysis ID:   AN004471
File format:   txt
Status: Contains Validation Issues
Number of Issues: 16

Number of Warnings: 9

Number of Value Errors: 13

Number of Consistency Errors: 2

Number of Format Errors: 0

Issue Log:
Error: An empty value or a null value was detected for the subsection, "FLOW_GRADIENT", in the "CHROMATOGRAPHY" section. A legitimate value should be provided for this required subsection.
Error: The value, "-", for the subsection, "FLOW_RATE", in the "CHROMATOGRAPHY" section should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['mL/min', 'uL/min', 'μL/min']. Ignore this when more complicated descriptions are required.
Error: The value, "-", for the subsection, "COLUMN_TEMPERATURE", in the "CHROMATOGRAPHY" section should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['°C', 'C']. Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected for the subsection, "SOLVENT_A", in the "CHROMATOGRAPHY" section. A legitimate value should be provided for this required subsection.
Error: An empty value or a null value was detected for the subsection, "SOLVENT_B", in the "CHROMATOGRAPHY" section. A legitimate value should be provided for this required subsection.
Error: The following metabolites in the, MS_METABOLITE_DATA table were not found in the METABOLITES table:
	"2_2^-methylenebis(6-tert-butyl-p-cresol)"
	"2_3-dihydroxy-2-methylbutyrate"
	"2_3-dihydroxyisovalerate"
	"2_6-dihydroxybenzoic acid"
	"2R_3R-dihydroxybutyrate"
	"2S_3R-dihydroxybutyrate"
	"3_4-dihydroxybutyrate"
Error: The following metabolites in the METABOLITES table were not found in the MS_METABOLITE_DATA table:
	"2,2'-methylenebis(6-tert-butyl-p-cresol)"
	"2,3-dihydroxy-2-methylbutyrate"
	"2,3-dihydroxyisovalerate"
	"2,6-dihydroxybenzoic acid"
	"2R,3R-dihydroxybutyrate"
	"2S,3R-dihydroxybutyrate"
	"3,4-dihydroxybutyrate"
Warning: The "ri" column at position 7 in the METABOLITES table, matches a standard column name, "retention_index". If this match was not in error, the column should be renamed to the standard name or a name that doesn't resemble the standard name.
Warning: The "ri_type" column at position 8 in the METABOLITES table, matches a standard column name, "retention_index_type". If this match was not in error, the column should be renamed to the standard name or a name that doesn't resemble the standard name.
Warning: The standard column, "other_id", was found in the METABOLITES table as "other_id". If this column contains database IDs for standard databases such as KEGG, PubChem, HMDB, etc., it is recommended to make individual columns for these and not lump them together into a less descriptive "other_id" column.
Warning: The "inchi_key" column at position 3 in the METABOLITES table has all null values.
Warning: The "other_id" column at position 5 in the METABOLITES table has all null values.
Warning: The "other_id_type" column at position 6 in the METABOLITES table has all null values.
Warning: The "ri" column at position 7 in the METABOLITES table has all null values.
Warning: The "ri_type" column at position 8 in the METABOLITES table has all null values.
Warning: The "moverz_quant" column at position 9 in the METABOLITES table has all null values.