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Short Name: TRYPAN BLUE
Synonym: Congo Blue 3B; Direct Blue 14, Niagara Blue 3B; 3,3'-[(3,3'-Dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid] tetrasodium salt
Basic Details
Article No.
LG4699
Grade
For Microscopy
Purity
70% dye content
CAS No.
72-57-1
HS Code
3204.9000
Shelf Life
60 Months
Packings Avialable
LG4699
1 bottle of 25 gm
₹1183
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LG4699
1 bottle of 100 gm
₹4420
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Molecule Detail
Formula: C34H24N6Na4O14S4
Weight: 960.80
Physical Properties
Physical state at 20 °C
Solid
Colour
Dark blue crystalline
Melting point/ Freezing point [°C]
&gt; 300 °C
Solubility in water [% weight]
Soluble in water
Chemical Specifications
Appearance
Dark Green to Brown or Brown-Black Powder, Crystalline Powder or Granule
Dye content
Min 70%
Absorption maxima in methanol
603 – 607 nm
Absorptivity( A 1% /1cm,λmax in Methanol)
Min 730.0
Loss on drying
Max 10.0%
Safety Information & Hazard Symbols
Symbol
GHS08
Signal Word
Danger
Hazardous Statement
H350
Precaution Statement
P201-P308 + P313