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ACID RED 66

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ACID RED 66 Basic information

Product Name:
ACID RED 66
Synonyms:
  • BIEBRICH SCARLET, SODIUM SALT
  • BIEBRICH SCARLET STAIN
  • BIEBRICH SCARLETTE
  • BIEBRICH SCARLET, WATER SOLUBLE
  • BIEBRICH SCARLET WS
  • CI NO 26905
  • CI 26905
  • CROCEIN SCARLET
CAS:
4196-99-0
MF:
C22H14N4Na2O7S2
MW:
556.48
EINECS:
224-084-5
Product Categories:
  • Organics
Mol File:
4196-99-0.mol
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ACID RED 66 Chemical Properties

Melting point:
181-188 °C
Flash point:
300°(572°F)
storage temp. 
Store at +15°C to +30°C.
solubility 
ethanol: 1 mg/mL
form 
Powder
Colour Index 
26905
color 
Dark brown powder
Water Solubility 
Appreciable (> 10%)
BRN 
3883900
Stability:
Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference
4196-99-0
EPA Substance Registry System
C.I. Acid Red 66, disodium salt (4196-99-0)
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Safety Information

Hazard Codes 
Xi,Xn
Risk Statements 
36/37/38-20/21/22
Safety Statements 
37/39-26-36
WGK Germany 
3
TSCA 
Yes
HS Code 
32041200

MSDS

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ACID RED 66 Usage And Synthesis

Chemical Properties

dark red powder

Definition

ChEBI: An organic sodium salt having 2-[(2-hydroxynaphthalen-1-yl)diazenyl]-5-[(4-sulfonatophenyl)diazenyl]benzene-1-sulfonate as the counterion. Used as a plasma stain in Masson's trichrome.

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