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Flavonoids and polyphenols

Quercitrin

Also known as Quercetin 3-rhamnoside, Quercitroside, Quercetrin

CAS 522-12-3Formula C21H20O11Molar mass 448.38 g/molEC 208-322-5
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Quercitrin chemical structure, C21H20O11, CAS 522-12-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Yellow crystals from dil methanol or ethanol
Melting point
176 to 179
Solubility
PRACTICALLY INSOL IN COLD WATER, ETHER, SOL IN ALCOHOL, MODERATELY SOL IN HOT WATER, SOL…
HS code
293299
Category
Flavonoids and polyphenols
Illustrative photo, yellow pigment powder in an open kraft paper sack in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Quercitrin?

Plain description, key identifiers and synonyms

Quercitrin is a quercetin O-glycoside that is quercetin substituted by a alpha-L-rhamnosyl moiety at position 3 via a glycosidic linkage. It has a role as an antioxidant, an EC 1.1.1.21 (aldehyde reductase) inhibitor, an EC 1.14.18.1 (tyrosinase) inhibitor, an antileishmanial agent, an EC 1.1.1.184 [carbonyl reductase (NADPH)] inhibitor and a plant metabolite. It is an alpha-L-rhamnoside, a tetrahydroxyflavone, a monosaccharide derivative and a quercetin O-glycoside. It is a conjugate acid of a quercitrin-7-olate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxychromen-4-one
CAS number
522-12-3 CAS number cross-checked
EC number
208-322-5
Molecular formula
C21H20O11
UNII
2Y8906LC5P
MDL number
MFCD00016932
InChIKey
OXGUCUVFOIWWQJ-HQBVPOQASA-N
InChI
InChI=1S/C21H20O11/c1-7-15(26)17(28)18(29)21(30-7)32-20-16(27)14-12(25)5-9(22)6-13(14)31-19(20)8-2-3-10(23)11(24)4-8/h2-7,15,17-18,21-26,28-29H,1H3/t7-,15-,17+,18+,21-/m0/s1
Canonical SMILES
CC1OC(Oc2c(-c3ccc(O)c(O)c3)oc3cc(O)cc(O)c3c2=O)C(O)C(O)C1O
Isomeric SMILES
C[C@H]1[C@@H]([C@H]([C@H]([C@@H](O1)OC2=C(OC3=CC(=CC(=C3C2=O)O)O)C4=CC(=C(C=C4)O)O)O)O)O

Synonyms

  • Quercetin 3-rhamnoside
  • Quercitroside
  • Quercetrin
  • Quercimelin
  • Thujin
  • Quercetin-3-L-rhamnoside
  • Quercetin 3-L-rhamnoside
  • Rhamnoside, quercetin-3
  • Usaf cf-2
  • Quercetin 3-rhamnopyranoside
  • C.I. 75720
  • Quercetin 3-O-alpha-rhamnopyranoside
  • 3,3',4',5,7-Pentahydroxyflavone-3-L-rhamnoside
  • Quercetin, 3-(6-deoxy-alpha-L-mannopyranoside)
  • Mannopyranoside, quercetin-3 6-deoxy-, alpha-L-
  • CI 75720
  • Flavone, 3,3',4',5,7-pentahydroxy-, 3-rhamnoside
  • 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxychromen-4-one
  • WA 17779
  • Flavone, 3,3',4',5,7-pentahydroxy-, 3-(6-deoxy-alpha-L-mannopyranoside)
  • 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-{[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}-4H-chromen-4-one
  • 4H-1-Benzopyran-4-one, 3-((6-deoxy-alpha-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-
  • quercetin-3-O-alpha-rhamnosid
  • quercetin-3-O-alpha-rhamnoside
  • 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-(((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl)oxy)-4H-chromen-4-one
Show all 37 synonyms
  • 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl)oxychromen-4-one
  • Quercetin 3-O-rhamnoside
  • Quercetin-3-rhamnoside
  • Quercitronic acid
  • Quercetin 3-O-alpha-L-rhamnoside
  • Quercetin 3-O-L-rhamnoside
  • Quercetin 3-O-rhamnopyranoside
  • 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-(((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-4H-chromen-4-one
  • Quercetin 3-O-alpha-L-rhamnopyranoside
  • Quercetin-3-O-rhamnoside
  • Rhamnosyl-3-quercitin
  • Quercitin-3-rhamnoside

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Yellow crystals from dil methanol or ethanolexp.
Melting point
176 to 179exp.
Solubility
PRACTICALLY INSOL IN COLD WATER, ETHER, SOL IN ALCOHOL, MODERATELY SOL IN HOT WATER, SOL IN AQ ALKALINE SOLNexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
448.38 g/molcalc.
Exact mass
448.1006 Dacalc.
LogP (octanol/water)
0.49calc.
Topological polar surface area
190.3 Ųcalc.
Hydrogen bond donors
7calc.
Hydrogen bond acceptors
11calc.
Rotatable bonds
3calc.
Heavy atoms
32calc.
Rings
4calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.29calc.
Formal charge
0calc.
Stereocentres
5calc.
Lipinski rule of five
Fails (2 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=c1c(OC2CCCCO2)c(-c2ccccc2)oc2ccccc12

O=c1c(OC2CCCCO2)c(-c2ccccc2)oc2ccccc12

4 rings, 24 atoms.

110 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Quercitrin suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 24 suppliers
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Where suppliers are based

24 suppliers in 5 countries

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Quercitrin price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Dye formerly used on wool mordanted with tin and alum.

Roles

  • antiinfective agent
  • antileishmanial agent
  • antimicrobial agent
  • antimicrobial drug
  • antioxidant
  • antiparasitic agent
  • antiprotozoal drug
  • enzyme inhibitor
  • eukaryotic metabolite
  • metabolite
  • pharmaceutical
  • plant metabolite

How it is made

Extraction (as mixture with quercetin) from bark of quecus tinctoria with high pressure steam

From aesculus hippocastanum l, hippocastanaceae: horhammer et al, arch pharm 292, 113 (1959).

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Quercitrin is traded under.

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Quercitrin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Quercitrin, based on the data on this page

What is Quercitrin?

Quercitrin is a quercetin O-glycoside that is quercetin substituted by a alpha-L-rhamnosyl moiety at position 3 via a glycosidic linkage.

What is the CAS number of Quercitrin?

The CAS registry number of Quercitrin is 522-12-3.

What is the molecular formula and weight of Quercitrin?

The molecular formula of Quercitrin is C21H20O11 and its molar mass is 448.38 g/mol.

What is Quercitrin used for?

Dye formerly used on wool mordanted with tin and alum.

Is Quercitrin hazardous?

No GHS hazard classification for Quercitrin is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Quercitrin?

Quercitrin is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Quercitrin?

CompoundList lists 24 suppliers of Quercitrin in China, United States, Germany, France and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Quercitrin?

Suppliers quote Quercitrin on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Quercitrin

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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