C15H10O7
302.23 g/mol
Food AdditiveDanger
Quercetin
CAS117-39-5EC204-187-1
Category
Food Additive
Compound Class
Natural Product
Primary Use
dietary supplement ingredient
Quercetin is a plant flavonol found in many fruits, vegetables, and grains, recognized for its antioxidant properties. It is commonly used as an ingredient in dietary supplements, beverages, and foods.
dietary supplement ingredientfood ingredient
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
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Dietary supplement and food ingredient
SimilarStructure SimilarSimilarity 0.72
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ReferenceSame Category
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dietary supplement and antioxidant
ReferenceSame Category
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ReferenceSame Category
3-tert-butyl-4-hydroxyanisole
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Antioxidant food preservative
ReferenceSame Category
Propyl gallate
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antioxidant for foods and cosmetics
Safety Reference
Danger
H301Toxic if swallowed
Customs Tariff Classification
The international HS code for Quercetin (CAS 117-39-5) is 2932.99.
HS code (international, 6-digit)
2932.99
EU CN code (8-digit)
2932 99 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxychromen-4-one
InChIKey
REFJWTPEDVJJIY-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)O)O)O
Synonyms (73)
- QUE
- Rutoside Trihydrate EP Impurity C
- 3'-hydroxykaempferol
- 3,4',5,7-Pentahydroxyflavone
- 3,7,3',4'-Pentahydroxyflavone
- 3cf8
- 4dfu
- 4mra
- C.I. Natural Yellow 10
- C.I. Natural red 1
- C.I. Natural yellow 10 & 13
- C.I. natural yellow 13
- Corvitin
- Cyanidelonon 1522
- Cyanidenolon 1522
- Dikvertin
- Enicostemma Littorale Blume
- Flavin meletin
- Korvitin
- Kvercetin
- Kvercetin [Czech]
- Lipoflavon
- Meletin
- Meletin;Sophoretin
- Natural Yellow 10
- Quer
- Quercetin (GMP)
- Quercetin (Sophoretin)
- Quercetin (Standard)
- Quercetin 1540
- Quercetin Phenolic
- Quercetin content
- Quercetine
- Quercetol
- Quercitin
- Quertin
- Quertine
- Ritacetin
- Sophoretin
- T-Gelb bzw. grun 1
- Xanthaurine
- flavan-3,4-diols
- quceritin
- quenterin
- quercetin
- quercetin aglycone
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