Product Overview
Alizarin Yellow R
Purity / Analysis Method | >98.0%(HPLC) |
Molecular Formula / Molecular Weight | C13H8N3NaO5 = 309.21 |
Physical State (20 deg.C) | Solid |
CAS RN | 2243-76-7 |
Merck Index (14) | 255 |
Colour Index | 14030 |
MDL Number |
MFCD00007313 |
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) |
HS Number | 3204.12.5090 |