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CAS RN: 2243-76-7 | Product Number: A0579

Mordant Orange 1

Purity: >98.0%(HPLC)
  • Alizarin Yellow R
  • 5-(4-Nitrophenylazo)salicylic Acid
6   1   ≥20 

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Product Number A0579
Purity / Analysis Method >98.0%(HPLC)
Molecular Formula / Molecular Weight C__1__3H__8N__3NaO__5 = 309.21  
Physical State (20 deg.C) Solid
CAS RN 2243-76-7
PubChem Substance ID 87562163
Merck Index (14) 255
Colour Index 14030
MDL Number


Appearance Light yellow to Brown powder to crystal
Purity(HPLC) min. 98.0 area%
Absorbance min. 0.320(5 mg/L, pH 9.6, 375.0 nm)(calcd.on dried substance)
Drying loss max. 10.0 %
Transition interval(pH) (redish yellow)10.0 to 12.0(yellowish red)
Ignition residue(Sulfate) 20.0 to 30.0 %(after drying)
Properties (reference)
Related Laws:
RTECS# VO5310000
Transport Information:
HS Number 3204.12.5090
PubMed Literature

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