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22110

Sigma-Aldrich

(+)-Catechin hydrate

≥96.0% (sum of enantiomers, HPLC)

Synonym(s):
(+)-Cyanidol-3, (2R,3S)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol
Empirical Formula (Hill Notation):
C15H14O6 · xH2O
CAS Number:
Molecular Weight:
290.27 (anhydrous basis)
Beilstein:
3595244
EC Number:
MDL number:
PubChem Substance ID:

Assay

≥96.0% (sum of enantiomers, HPLC)

form

powder

optical activity

[α]/D +26±2°, c = 1 in H2O

impurities

≤8% water

mp

175-177 °C (anhydrous) (lit.)

storage temp.

2-8°C

SMILES string

[H]O[H].O[C@H]1Cc2c(O)cc(O)cc2O[C@@H]1c3ccc(O)c(O)c3

InChI

1S/C15H14O6.H2O/c16-8-4-11(18)9-6-13(20)15(21-14(9)5-8)7-1-2-10(17)12(19)3-7;/h1-5,13,15-20H,6H2;1H2/t13-,15+;/m0./s1

InChI key

OFUMQWOJBVNKLR-NQQJLSKUSA-N

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(+)-Catechin hydrate ≥96.0% (sum of enantiomers, HPLC)

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(+)-Catechin hydrate ≥98% (HPLC), powder

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(±)-Catechin hydrate

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(±)-Catechin hydrate

(±)-Taxifolin hydrate ≥90% (HPLC)

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T4512

(±)-Taxifolin hydrate

assay

≥96.0% (sum of enantiomers, HPLC)

assay

≥98% (HPLC)

assay

≥96% (HPLC)

assay

≥90% (HPLC)

form

powder

form

powder

form

powder

form

powder

mp

175-177 °C (anhydrous) (lit.)

mp

175-177 °C (anhydrous) (lit.)

mp

200 °C (decomposes on heating)

mp

-

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

−20°C

optical activity

[α]/D +26±2°, c = 1 in H2O

optical activity

-

optical activity

-

optical activity

-

impurities

≤8% water

impurities

-

impurities

-

impurities

-

General description

Catechin hydrate is a polyphenolic flavonoid that exhibits antioxidant properties. It is commonly found in green tea, grape seeds, and bark of few trees like acacia and mahogany.

Application

(+)-Catechin hydrate can be used:
  • As an inhibitor of steel corrosion in hydrochloric acid solution.
  • As a model compound in the study of antimicrobial activities of flavonoids on Escherichia coli.
  • As a starting material for the synthesis of catechin glucosides of biological importance.

Caution

loses water of hydration during storage

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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