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CAS RN: 1667-99-8 | Product Number: C0979

Mordant Blue 29

  • 2,6-Dichlorodimethyl-sulfoxy-fuchsonedicarboxylic Acid Sodium Salt
  • Chrome Azurol S
≥20  3  
17   4  
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Product Number C0979
Molecular Formula / Molecular Weight C__2__3H__1__3Cl__2Na__3O__9S = 605.28  
Physical State (20 deg.C) Solid
Store Under Inert Gas Store under inert gas
Condition to Avoid Hygroscopic
CAS RN 1667-99-8
Reaxys Registry Number 4110655
PubChem Substance ID 87566024
Colour Index 43825
MDL Number


Appearance Red to Dark blue to Black powder to crystal
Lambda max. 425.0 to 435.0 nm(pH7.0 phosphate buffer)
Absorbance min. 0.500(0.02g/L,pH7.0 phosphate buffer,425.0 to 435.0 nm)(calcd.on dried substance)
Drying loss max. 10.0 %
Ignition residue(Sulfate) 35.0 to 45.0% (calcd.on dried substance)
Sensitiveness Colorimetric Test : Turn Purple with Aluminum and turn Yellow red by adding EDTA 2Na
Properties (reference)
Maximum Absorption Wavelength 430(H2O) nm
Solubility in water Soluble
Solubility (very slightly) Ethanol
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.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
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