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Name 3,3',4',5,7-Pentahydroxyflavone
CAS 117-39-5
EINECS(EC#) 204-187-1
Molecular Formula C15H10O7
MDL Number MFCD00006828
Molecular Weight 302.24
MOL File 117-39-5.mol

Chemical Properties

Appearance Yellow to green yellow crystalline powde
Melting point  316.5 °C
Boiling point  363.28°C (rough estimate)
density  1.3616 (rough estimate)
refractive index  1.4790 (estimate)
storage temp.  Store at 0-5°C
solubility  insoluble in H2O; ≥15.1 mg/mL in DMSO; ≥3.28 mg/mL in EtOH
form  solid
pka 6.31±0.40(Predicted)
Water Solubility  <0.1 g/100 mL at 21 ºC
Detection Methods HPLC
Merck  13,8122
BRN  317313
Medicine, reported formation of epoxy resins on mixing with epichlorohydrin.
CAS DataBase Reference 117-39-5(CAS DataBase Reference)
IARC 3 (Vol. Sup 7, 73) 1999
EPA Substance Registry System 117-39-5(EPA Substance)

Safety Data

Hazard Codes  T,Xi
Risk Statements 
R25:Toxic if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  2811
WGK Germany  3
RTECS  LK8750000
HazardClass  6.1(b)
PackingGroup  III
HS Code  29329900
Safety Profile
Poison by ingestion, subcutaneous, and intravenous routes. Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Human mutation data reported. Used as a pharmaceutical and veterinary drug. When heated to decomposition it emits acrid smoke and irritating fumes
Hazardous Substances Data 117-39-5(Hazardous Substances Data)
LD50 oral in rat: 161mg/kg

Hazard Information

Material Safety Data Sheet(MSDS)

Questions And Answer

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