Skip to content

GREENVEIL

  • beauty

Isoquercetin

CAS 27215-07-2

Also registered as 11 other CAS numbers

28454-82-2 · 61277-38-1 · 107438-55-1 · 133946-90-4 · 355806-24-5 · 478367-76-9 · 888937-01-7 · 959332-67-3 · 1012316-11-8 · 1246962-26-4 · 482-35-9

Isoquercetin chemical structure

Concern score

Not assessed — no hazard data yet.

Isoquercetin in plain language

What it is

Also known as Isoquercitrin · Quercetin 3-O-GLUCOPYRANOSIDE · Quercetin-3-glucoside · 3',4',5,7-TETRAHYDROXYFLAVONE-3-.BETA.-D-GLUCOPYRANOSIDE · 3-GLUCOSYLQUERCETIN · 3-O-.BETA.-D-GLUCOPYRANOSYLQUERCETIN

Show all 25 names

Contigoside b · GLUCOSYL-3-QUERCETIN · Hirsutrin · Quercetin 3-D-GLUCOSIDE · Quercetin 3-O-.BETA.-D-GLUCOPYRANOSIDE · Quercetin 3-O-GLUCOSIDE · Quercetin 3.BETA.-GLUCOSIDE · Quercetin glucoside · QUERCETIN-3-.BETA.-GLUCOPYRANOSIDE · QUERCETIN-3-GLUCOSE · Quercetol 3-MONOGLUCOSIDE · Glucosyl 3-quercetin · QUERCETIN-3-O-.BETA.-D-GLUCOSIDE · Quercetin 3-beta-O-glucoside · Quercetin 3-monoglucoside · Quercetol 3-glucoside · Ronacare isoquercetin · UNII-6HN2PC637T · Quercetin 3-O-GLUCOSIDE (constituent of ginkgo)

What it does

Used in cosmetics as an antioxidant.

  • Antioxidant
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Isoquercetin appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • EUCosIngActiveIsoquercetin is the organic compound
  • USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Antioxidant.
    • EPA CPDat observed this chemical in 2 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Antioxidant.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Isoquercetin. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for Isoquercetin yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated July 2013

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (1)

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Isoquercetin in a product composition. These are source records, not Greenveil catalog products.

Source records

2

Named organisations

3

Personal care

Typical roles

Antioxidant
See products using Isoquercetin →