O-methyl-D-glucuronoxylan

UNMAPPED_0227 chemically defined UNMAPPED

Ontology mapping

Primary identifier
UNMAPPED_0227
Notes
Imported from CultureBotHT (compounds_to_cas.csv (no CAS-RN)). No CAS-RN or CHEBI mapping available; curator review needed. Reviewed on 2026-05-11 as a specific substituted xylan polysaccharide; not identity-mapped to generic xylan.

Synonyms (1)

SynonymTypeSourceOccurrences
O-methyl-D-glucuronoxylan RAW_TEXT culturebotht

Occurrence statistics

Total occurrences
0
Distinct media
0

Curation history

TimestampCuratorActionNew statusChanges
2026-04-29T06:51:33.117170+00:00 audit_add_remaining_culturebotht CREATED_AS_UNMAPPED UNMAPPED Imported from CultureBotHT (compounds_to_cas.csv (no CAS-RN)). No CAS-RN or CHEBI mapping available; curator review needed.
2026-05-11T08:14:56Z mediaingredientmech-agentic-curation LLM REVIEWED_POLYSACCHARIDE UNMAPPED Classified as a single polysaccharide ingredient and left unmapped because no exact local ontology identity for O-methyl-D-glucuronoxylan was verified.
2026-08-06T00:00:00+00:00 edison_literature_identity LLM ANNOTATED Edison LITERATURE (PaperQA3) identity research; report at research/ingredients/O-methyl-D-glucuronoxylan-edison-literature.md (local artifact — research/ is gitignored, so the findings are quoted here rather than linked). Report verdict: **Recommended interpretation:** a named, structurally defined **class of heterogeneous acidic polysaccharides**, not a single stoichiometric molecular species, salt, hydrate, buffer, extract, or commercial formulation. Its defining motif is a β-(1→4)-linked D-xylopyranose backbone carrying α-(1→2)-linked 4-O-methyl-D-glucuronic-acid substituents. Substitution frequency, sequence, degree of polymer No ontology CURIE was proposed. Recorded as provenance only — no grounding applied from this run. Edison's recommendations are deliberately conservative, and a plausible identifier promoted by a mechanism that never decided anything is what #203 and #263 exist to undo. Any CURIE above is a curator's to accept or reject.