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478-43-3

Name Rhein
CAS 478-43-3
EINECS(EC#) 207-521-4
Molecular Formula C15H8O6
MDL Number MFCD00009618
Molecular Weight 284.22
MOL File 478-43-3.mol

Chemical Properties

Appearance Yellowish Brown Solid
Melting point  ≥300 °C (lit.)
Boiling point  346.72°C (rough estimate)
density  1.3269 (rough estimate)
refractive index  1.4413 (estimate)
storage temp.  2-8°C
solubility  DMSO (Slightly), Methanol (Slightly)
form  neat
pka 3.17±0.20(Predicted)
color  Yellow to Dark Orange
Water Solubility  <0.1 g/100 mL at 17 ºC
Usage Found in the free state and as glucoside in Rheum spp, Polygonaceae (rhubarb) and in Senna leaves. A potential antioxidant resource: endophytic fungi from medicinal plants.
λmax 432nm(MeOH)(lit.)
Merck  13,8260
BRN  2222155
Stability: Hygroscopic
InChIKey FCDLCPWAQCPTKC-UHFFFAOYSA-N
LogP 4.290 (est)
CAS DataBase Reference 478-43-3(CAS DataBase Reference)
EPA Substance Registry System 478-43-3(EPA Substance)

Safety Data

Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
WGK Germany  2
RTECS  CA9516000
HS Code  29189900
Safety Profile
A poison by intravenous route. Low toxicity by ingestion. When heated to decomposition it emits acrid smoke and irritating vapors.

Hazard Information

Material Safety Data Sheet(MSDS)

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