text.skipToContent text.skipToNavigation

Maximum quantity allowed is 999

Please select the quantity

CAS RN: 478-43-3 | Product Number: D3986

4,5-Dihydroxyanthraquinone-2-carboxylic Acid

Purity: >95.0%(T)(HPLC)
  • Rhein
  • Cassic Acid
  • Rhubarb Yellow
1   Contact Us
15   9  

*Stock available in Belgium will be delivered in 1 to 3 days
*Stock available in Japan will be delivered in 1 to 2 weeks (excludes regulated items and dry ice shipments).

Product Number D3986
Purity / Analysis Method >95.0%(T)(HPLC)
Molecular Formula / Molecular Weight C__1__5H__8O__6 = 284.22  
Physical State (20 deg.C) Solid
CAS RN 478-43-3
Reaxys Registry Number 2222155
PubChem Substance ID 125307728
Merck Index (14) 8176
MDL Number


Appearance Light yellow to Brown powder to crystal
Purity(HPLC) min. 95.0 area%
Purity(Neutralization titration) min. 95.0 %
Properties (reference)
Melting Point 321 °C
Maximum Absorption Wavelength 432(MeOH) nm
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
EC Number 207-521-4
RTECS# CA9516000
Transport Information:
HS Number 2918999090
Rhein; A Bioactive Anthraquinone Isolated from Rheum palmatum L.

Rhein is an anthraquinone, isolated from several traditional Chinese medicines, including Rheum palmatum L. It has been reported that rhein exerts various pharmacological activities, such as anti-inflammatory, antitumor, antioxidant, antifibrosis, hepatoprotective, and nephroprotective activities. (The product is for research purpose only.)


PubMed Literature


Documents (Note: Some products will not have analytical charts available.)
Safety Data Sheet (SDS)
Please select Language.

The requested SDS is not available.

Please Contact Us for more information.

C of A & Other Certificates
Please enter Lot Number Incorrect Lot Number is entered
Analytical Charts
Please enter Lot Number Incorrect Lot Number is entered

The requested analytical chart is not available. Sorry for the inconvenience.

Other Documents