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03805

Supelco

Oenothein B

analytical standard

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10 MG
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10 MG
HUF 333,000.00

About This Item

Empirical Formula (Hill Notation):
C68H48O44
CAS Number:
Molecular Weight:
1569.08
UNSPSC Code:
85151701
NACRES:
NA.24

HUF 333,000.00


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grade

analytical standard

Quality Level

Assay

≥80% (HPLC)

shelf life

limited shelf life, expiry date on the label

application(s)

food and beverages

format

neat

storage temp.

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

InChI key

SHYSVHSGJVNSLX-UHFFFAOYSA-N

General description

Oenothein B is a dimeric ellagitannin compound which is found commonly in genusOenothera.[1]

Application

Oenothein B may be used as a reference standard for the determination of oenothein B in aqueous extracts of Epilobii angustifolli herba[2] and Epilobium angustifolium L.[3] by high performance thin-layer chromatography (HPTLC)-densitometry, in plant materials by HPLC combined with diode array detector (DAD) and mass spectrometry (MS)[1] and in Eucalyptus globulus leaves by HPLC-DAD coupled to electrospray ionization (EIS) MS.[4]

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Agnieszka Bazylko et al.
Journal of chromatography. A, 1173(1-2), 146-150 (2007-11-06)
A method was developed for separation and quantitative determination of oenothein B (OeB) and quercetin glucuronide (QG) in aqueous extract of Epilobii angustifolii herba by HPTLC-densitometry. The analyses were performed on HPTLC RP-18 WF(254) plates with 25% MeCN in water
B Ducrey et al.
Planta medica, 63(2), 111-114 (1997-04-01)
Species of the genus Epilobium (Onagraceae) have been investigated for their activity against 5 alpha-reductase and aromatase, two enzymes which are involved in the aetiology of benign prostatic hyperplasia (BPH). Activity-guided fractionation has led to the identification of two macrocyclic
H Maruta et al.
Biochemical and biophysical research communications, 236(2), 265-269 (1997-07-18)
Poly(ADP-ribose) is a reversible covalent-modifier of chromosomal proteins in eukaryotic cells. The function of poly(ADP-ribose) is not clear, although it has been suggested to be involved in the regulation of DNA transactions such as replication, repair, and transcription. Here we
Annabella Vitalone et al.
Pharmacology, 69(2), 79-87 (2003-08-21)
We have previously shown that extracts of different Epilobium species, a phytotherapeutic agent used in folk medicine as a treatment for benign prostatic hyperplasia, inhibit proliferation of human prostate cells. The selectivity of this effect was evaluated in four different
Glaciane D Santos et al.
Medical mycology, 45(7), 609-618 (2007-11-23)
The fungus Paracoccidioides brasiliensis is the causative agent of paracoccidioidomycosis (PCM), the most prevalent human systemic mycosis in Latin America. Drug toxicity and the appearance of resistant strains have created the need to search for new therapeutic approaches. Plants with

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