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Merck
CN

28660

Procyanidin A2

analytical standard

Synonym(s):

(+)-Epicatechin-(4β-8,2β-O-7)-epicatechin, Proanthocyanidin A2

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About This Item

Empirical Formula (Hill Notation):
C30H24O12
CAS Number:
41743-41-3
Molecular Weight:
576.50
NACRES:
NA.24
PubChem Substance ID:
329753283
UNSPSC Code:
85151701
MDL number:
MFCD10566019

Key Documents

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InChI key

NSEWTSAADLNHNH-LSBOWGMISA-N

SMILES string

O[C@H]1[C@@H](C2=CC(O)=C(O)C=C2)OC3=C4[C@@]5([H])C6=C(O)C=C(O)C=C6O[C@](OC4=CC(O)=C3C1)(C7=CC(O)=C(O)C=C7)[C@@H]5O

InChI

1S/C30H24O12/c31-13-7-20(37)24-22(8-13)41-30(12-2-4-16(33)19(36)6-12)29(39)26(24)25-23(42-30)10-17(34)14-9-21(38)27(40-28(14)25)11-1-3-15(32)18(35)5-11/h1-8,10,21,26-27,29,31-39H,9H2/t21-,26-,27-,29-,30+/m1/s1

grade

analytical standard

assay

≥99.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

application(s)

food and beverages

format

neat

storage temp.

2-8°C

Quality Level

100

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General description

Procyanidins are oligomers and polymers of flavan-3-ols consisting of (−)-epicatechin subunits found in fruits and plants with various biological benefits. Procyanidin A2 is a dimer of procyanidin.

Application

Procyanidin A2 may be used as a reference standard for the quantification of the analyte in grapes and wines of Vitis vinifera L. of Cabernet Sauvignon and Merlot noir by reverse-phase high-performance liquid chromatography method.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

This compound is commonly found in plants of the genus: crataegus

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP0342
BCCM2787
BCCK1229
BCCH8705
BCCG3949

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Variations in the heterogeneity of the decay of the fluorescence in six procyanidin dimers.
Cho D, et al.
Journal of the American Chemical Society, 112(11), 4273-4277 (1990)
Identification of procyanidin A2 in grape and wine of Vitis vinifera L. cv: Merlot noir and Cabernet Sauvignon.
de Gaulejac NV, et al.
International Journal of Grape and Wine Science, 35(1), 51-56 (2001)

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