Nitrazine Yellow
C.I.No.14890 To perform a fecal pH test for diagnosing intestinal infections or other digestive problems
Phenaphthazine, (3E)-3-[(2,4-Dinitrophenyl)hydrazono]-4-oxonaphthalene-2,7-disulphonic acid
Product Code. |
01834 |
Grade |
|
Purity |
CAS No. |
7/4/5423 | |
Molecular Formula |
C16H8N4Na2O11S2 |
Molecular Weight |
542.40 |
H.S.Code |
3204.13290 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
Brownish red powder |
Odour |
Odorless |
| pH value |
6.0 - 7.2 |
Solubility in water [% weight] |
Soluble in water |
Packaging
Specification
| Appearance | Orange coloured crystalline powder |
| pH transition range | 6 - 7 (Bright yellow-Bright blue) |
| Absorption maxima in 0.1 N NaOH | ~ 586 nm |
Safety Information and Hazard Symbols