dextran, Mw ~200,000

UNMAPPED_0168 chemically defined UNMAPPED

Ontology mapping

Primary identifier
UNMAPPED_0168
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 Mw-specific dextran fraction; not identity-mapped to generic Dextran.

Synonyms (1)

SynonymTypeSourceOccurrences
filtered, dextran, Mw ~200,000 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_POLYMER_FRACTION UNMAPPED Classified as a single polymer ingredient and left unmapped because the source specifies a filtered/autoclaved molecular-weight dextran fraction while local exact mapping evidence exists only for broader dextran.
2026-08-06T00:00:00+00:00 edison_literature_identity LLM ANNOTATED Edison LITERATURE (PaperQA3) identity research; report at research/ingredients/Dextran_Mw_200000-edison-literature.md (local artifact — research/ is gitignored, so the findings are quoted here rather than linked). Report verdict: **Recommended interpretation:** a **single polymer ingredient grade/fraction**, not a discrete single molecular species, salt, hydrate, buffer, extract, or multicomponent formulation. “Mw ~200,000” denotes an approximate **weight-average molecular mass of about 200 kDa** for a population of dextran chains. Dextran is intrinsically polydisperse, and commercial products are characterized by average 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.