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Congo Red Structure

Congo Red

Chemical Properties

Melting point >360 °C (lit.)
Density  0.995 g/mL at 25 °C
vapor pressure  <1 Pa
storage temp.  Store at +5°C to +30°C.
solubility  H2O: soluble10mg/mL
Colour Index  22120
form  Powder/Solid
pka 4.1(at 25℃)
color  Red Brown
PH 6.7 (10g/l, H2O, 20℃)
PH Range 3(blue)-5.2(red)
Odor Odorless
Water Solubility  soluble
λmax 497nm, 488nm, 595nm
Merck  14,2498
BRN  3894858
Stability Stable. Incompatible with strong oxidizing agents.
Biological Applications Detecting bacteria,protein folding disorders; treating dermatological disorders,neurodegenerative diseases,Alzheimer’s disease
Major Application Waveguides, optical sensors, display devices, inks, fertilizer, pesticides, carbohydrates, treatment of pathogen infections, age-related macular degeneration
CAS DataBase Reference 573-58-0(CAS DataBase Reference)
FDA UNII 3U05FHG59S
EPA Substance Registry System Congo Red (573-58-0)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H350-H361d
Precautionary statements P201-P202-P280-P308+P313-P405-P501
Hazard Codes  T,Xi
Risk Statements  45-63-36
Safety Statements  53-45-37/39-26
WGK Germany  3
RTECS  QK1400000
TSCA  Yes
HS Code  29215900
Hazardous Substances Data 573-58-0(Hazardous Substances Data)
Toxicity LD50 i.v. in rats: 190 mg/kg (Richardson, Dillon)
NFPA 704:
0
0 0

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Congo Red Chemical Properties,Usage,Production

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