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03805

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Oenothein B

analytical standard

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About This Item

Formule empirique (notation de Hill):
C68H48O44
Numéro CAS:
104987-36-2
Poids moléculaire :
1569.08
Code UNSPSC :
85151701
Nomenclature NACRES :
NA.24

Qualité

analytical standard

Niveau de qualité

100

Pureté

≥80% (HPLC)

Durée de conservation

limited shelf life, expiry date on the label

Application(s)

food and beverages

Format

neat

Température de stockage

2-8°C

InChI

1S/C68H50O44/c69-22-1-14(2-23(70)39(22)79)59(93)109-56-52(92)68(112-61(95)16-5-26(73)41(81)27(74)6-16)106-34-13-103-63(97)20-11-32(46(86)50(90)38(20)37-19(64(98)107-54(34)56)9-30(77)44(84)49(37)89)104-53-21(10-31(78)45(85)51(53)91)66(100)111-58-57(110-60(94)15-3-24(71)40(80)25(72)4-15)55-33(105-67(58)101)12-102-62(96)17-7-28(75)42(82)47(87)35(17)36-18(65(99)108-55)8-29(76)43(83)48(36)88/h1-11,33-34,52,54-58,67-92,101H,12-13H2

Clé InChI

SHYSVHSGJVNSLX-UHFFFAOYSA-N

Description générale

Oenothein B is a dimeric ellagitannin compound which is found commonly in genusOenothera.

Application

Oenothein B may be used as a reference standard for the determination of oenothein B in aqueous extracts of Epilobii angustifolli herba and Epilobium angustifolium L. by high performance thin-layer chromatography (HPTLC)-densitometry, in plant materials by HPLC combined with diode array detector (DAD) and mass spectrometry (MS) and in Eucalyptus globulus leaves by HPLC-DAD coupled to electrospray ionization (EIS) MS.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
BCCL3562
BCCM1865
BCCG8566
BCCG0097
BCCD7964

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Consulter la Bibliothèque de documents

K Miyamoto et al.
Japanese journal of cancer research : Gann, 84(1), 99-103 (1993-01-01)
The antitumor effect of oenothein B, a macrocyclic ellagitannin from Oenothera erythrosepala Bordas, on rodent tumors was studied. Oenothein B exhibited a strong antitumor activity against MM2 ascites tumors upon intraperitoneal administration to the mice before or after the tumor
A Kiss et al.
Phytomedicine : international journal of phytotherapy and phytopharmacology, 13(4), 284-289 (2006-02-24)
An aqueous extract of Epilobium angustifolium and its main compound oenothein B (OeB), a dimeric macrocyclic ellagitannin, are specifically able to induce the neutral endopeptidase (NEP) in prostate cancer cells. The angiotensin-converting enzyme (ACE) is not influenced. Additionally, a weak
Barbara Hevesi Tóth et al.
Journal of pharmaceutical and biomedical analysis, 49(1), 26-31 (2008-11-18)
Epilobium species (Onagraceae) are commonly used herbal remedies in traditional, adjuvant therapy of benignus prostate hyperplasia (BPH), however the pharmacological and clinical standardization of commercially available Epilobii herba (willow-herb) remains difficult. Willow-herb products usually consist of mixtures from various species
K Aoki et al.
Biochemical and biophysical research communications, 210(2), 329-337 (1995-05-16)
Oenothein B, a macrocircular dimeric ellagitannin, was found to be a potent and specific inhibitor of poly(ADP-ribose) glycohydrolase. Oenothein B suppressed glucocorticoid-sensitive mouse mammary tumor virus (MMTV) transcription in 34I cells. This suppression was accompanied by inhibition of glucocorticoid-induced endogeneous
Sebastian Granica et al.
Phytochemical analysis : PCA, 23(6), 582-587 (2012-03-08)
Oenothein B (OeB) is a dimeric macrocyclic ellagitannin occurring mainly in the genus Oenothera. In the literature no validated HPLC method for quantification of this compound has been reported. To develop and validate an efficient HPLC method for quantification of
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