| Identification | More | [Name]
NITRAZINE YELLOW | [CAS]
5423-07-4 | [Synonyms]
2-(2,4-DINITROPHENYLAZO)-1-HYDROXYNAPHTHALENE-3,6-DISULFONIC ACID DISODIUM SALT
2-(2,4-DINITROPHENYLAZO)-1-NAPHTHOL-3,6-DISULFONIC ACID, DISODIUM SALT
2-[2,4-DINITROPHENYLAZO]NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
3-(2,4-DINITROPHENYLAZO)-4-HYDROXY-2,7-NAPHTHALENEDISULFONIC ACID, DISODIUM SALT
CI 14890
CI NO 14890
NITRAZINE YELLOW
NITRAZOL YELLOW
2,7-Naphthalenedisulfonicacid,3-[(2,4-dinitrophenyl)azo]-4-hydroxy-,disodiumsalt
7-naphthalenedisulfonicacid,3-[(2,4-dinitrophenyl)azo]-4-hydroxy-disodium
disodium 2-(2,4-dinitrophenylazo)-1-hydroxynaphthalene-3,6-disulphonate
NITRAZINE YELLOW, FOR MICROSCOPY
NITRAZINE YELLOW, INDICATOR GRADE (C.I. 14890)
Nitrazol Yellow, 2-(2,4-Dinitrophenylazo)naphthol-3,6-disulfonic acid disodium salt, 2-(2,4-Dinitrophenylazo)-1-hydroxynaphthalene-3,6-disulfonic acid disodium salt
NITRAZINE YELLOW, INDICATOR GRADE
4-Hydroxy-3-[(2,4-dinitrophenyl)azo]naphthalene-2,7-disulfonic acid disodium salt | [EINECS(EC#)]
226-549-8 | [Molecular Formula]
C16H8N4Na2O11S2 | [MDL Number]
MFCD00003938 | [Molecular Weight]
542.36 | [MOL File]
5423-07-4.mol |
| Chemical Properties | Back Directory | [Appearance]
bordeaux to brown powder | [Melting point ]
>250°C | [storage temp. ]
2-8°C | [solubility ]
Solubility Soluble in water, acetic acid ethanol | [Colour Index ]
14890 | [form ]
Powder | [color ]
Brown to yellow to orange | [PH Range]
Bright yellow (6.0) to bright blue (7.2) | [Water Solubility ]
Dissolve in water at 1mg/ml | [ε(extinction coefficient)]
≥35000 at 587-591nm in 0.1 M NaOH at 0.01g/L | [λmax]
586nm | [Major Application]
Sensors, display devices, sol-gel matrix, electrorheological materials, diesel feuls/kerosines, detergent, fabric softner, food storage, method for identifying fresh & stale rice, in dialysis solution, screening of NAD-binding, monitoring secreted body fluids, lymph node, diagnostic pads, vaginal infection test method, assay for esterolyticenzyme activity, detecting pathogenic bacteria, diagnosis of bacterial vaginosis, detecting dysfunctional pregnancy, drugs screening | [CAS DataBase Reference]
5423-07-4(CAS DataBase Reference) | [EPA Substance Registry System]
2,7-Naphthalenedisulfonic acid, 3-[(2,4-dinitrophenyl)azo]-4-hydroxy-, disodium salt (5423-07-4) |
| Safety Data | Back Directory | [Hazard Codes ]
F | [Risk Statements ]
R5:Heating may cause an explosion. | [Safety Statements ]
S15:Keep away from heat .
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes . | [WGK Germany ]
3
| [TSCA ]
Yes | [HS Code ]
29270000 |
| Hazard Information | Back Directory | [Chemical Properties]
bordeaux to brown powder | [Uses]
Nitrazine Yellow is a pH-sensitive azo dye. It changes color from yellow to blue in pH range 6.0–7.0 and is widely used in microscopy. Dyes and metabolites. | [Application]
Nitrazine Yellow is used to test vaginal pH during late pregnancy to determine the breakage of the amniotic sac. To perform a fecal pH test for diagnosing intestinal infections or other digestive problems. In civil engineering, to determine the carbonatation spread in concrete structures and therefore assess the state of the rebar's passivation film. | [Biological Activity]
Nitrazine Yellow ( 2-(2,4-dinitrophenylazo)-1-hydroxynaphthalene-3,6-disulfonic acid disodium salt) is a pH-sensitive azo dye. It changes color from yellow to blue in pH range 6.0–7.0 and is widely used in microscopy. Thro at swab immersed in nitrazine yellow is used to identify pH variations in the vagina before and after amniotomy. |
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