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Alizarin yellow R sodium salt
Chemical Name |
Alizarin yellow R sodium salt |
Another name |
Sodium 5-[(4-nitrophenyl)azo]salicylate; 2-Hydroxy-5-((4-nitrophenyl)azo)benzoic acid monosodium salt; 5-(4-Nitrophenylazo)-salicylic acid sodium salt; Mordant Yellow 3R |
CAS No. |
1718-34-9 |
Molecular formula |
C13H9N3NaO5 |
EINECS No. |
217-002-4 |
Molecular weight |
309.21 |
Molecular Structure |
|
Details |
Appearance: yellow powder Assay: 90% min. pH change range: 10.0(yellow)~12.0(red) Water Soluble Test: pass Sulfated ash(as SO4): 20% max. |
Main Application |
Used as pH indicator. |
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