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30873

Rhein

Name: Rhein
Brand: SIAL

analytical standard

Synonym(s):

4,5-Dihydroxyanthraquinone-2-carboxylic acid, 9,10-Dihydro-4,5-dihydroxy-9,10-dioxo-2-anthracenecarboxylic acid, Cassic acid, Chrysazin 3-carboxylic acid, Monorhein, Rheic acid, Rhubarb yellow

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About This Item

Empirical Formula (Hill Notation):

C₁₅H₈O₆

CAS Number:

478-43-3

Molecular Weight:

284.22

UNSPSC Code:

85151701

NACRES:

NA.24

PubChem Substance ID:

329753592

EC Number:

207-521-4

Beilstein/REAXYS Number:

2222155

MDL number:

MFCD00009618

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Properties

grade

analytical standard

Quality Segment

100

assay

≥95.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

impurities

≤5.0% water

mp

≥300 °C (lit.)

application(s)

food and beverages

format

neat

SMILES string

OC(=O)c1cc(O)c2C(=O)c3c(O)cccc3C(=O)c2c1

InChI

1S/C15H8O6/c16-9-3-1-2-7-11(9)14(19)12-8(13(7)18)4-6(15(20)21)5-10(12)17/h1-5,16-17H,(H,20,21)

InChI key

FCDLCPWAQCPTKC-UHFFFAOYSA-N

Description

General description

Rhein is an active component of rhubarb (Rheum officinale), a medicinal herb in traditional Chinese medicine (TCM). It is known to exhibit antibacterial and anti-inflammatory activities.

Application

Rhein may be used as an analytical reference standard for the determination of the analyte in rat plasma and rhubarb roots, dock flowers and senna leaves by column-switching high-performance liquid chromatography and normal-phase high performance liquid chromatography, respectively.

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

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.