30873

Rhein

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
• 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

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

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

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.

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.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk: WGK 2