Nitrazine Yellow

Nitrazine Yellow Basic information
Product Name:Nitrazine Yellow
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;NITRAZINE YELLOW;NITRAZOL YELLOW;CI NO 14890;CI 14890
CAS:5423-07-4
MF:C16H11N4NaO11S2
MW:522.39
EINECS:226-549-8
Product Categories:Azo
Mol File:5423-07-4.mol
Nitrazine Yellow Structure
Nitrazine Yellow Chemical Properties
Melting point >250°C
storage temp. 2-8°C
solubility Solubility Soluble in water, acetic acid ethanol
form Powder
Colour Index 14890
color Brown to yellow to orange
PH RangeBright yellow (6.0) to bright blue (7.2)
Water Solubility Dissolve in water at 1mg/ml
λmax586nm
Major ApplicationSensors, 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 Reference5423-07-4(CAS DataBase Reference)
EPA Substance Registry System2,7-Naphthalenedisulfonic acid, 3-[(2,4-dinitrophenyl)azo]-4-hydroxy-, disodium salt (5423-07-4)
Safety Information
Hazard Codes F
Risk Statements 5
Safety Statements 15-22-24/25
WGK Germany 3
TSCA Yes
HS Code 29270000
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
Nitrazine Yellow Usage And Synthesis
Chemical Propertiesbordeaux to brown powder, soluble in water, dilute acid and dilute alkali. The maximum absorption wavelength is 586nm.
UsesNitrazine 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.
ApplicationNitrazine 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.
Nitrazine Yellow Preparation Products And Raw materials
ZIRCONIUM DINITRATE OXIDE THORIUM NITRATE HYDRATE Lanthanum(III) nitrate hexahydrate Sodium nitroprusside dihydrate Isosorbide dinitrate Ceric ammonium nitrate NICLOFOLAN Cobaltous nitrate hexahydrate Erbium(III) nitrate pentahydrate Ferric nitrate nonahydrate CERIUM(III) NITRATE HEXAHYDRATE Ferric nitrate LANTHANUM NITRATE 1-Naphthol 1-Naphthol-3,6-disulfonic acid Nitrazine yellow Cl 14,890(Dye content 80% min.) 1-Naphthol-3,6-disulfonic acid disodium salt Naphthalene-2,7-disulfonic acid

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