Iodonitrotetrazolium chloride
Synonym(s):p-Iodonitrotetrazolium Violet;2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazolium chloride;INT
- CAS NO.:146-68-9
- Empirical Formula: C19H13ClIN5O2
- Molecular Weight: 505.7
- MDL number: MFCD00011961
- EINECS: 205-676-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-31 18:15:48
What is Iodonitrotetrazolium chloride?
Description
Iodonitrotetrazolium (INT) (chloride) is a monotetrazolium salt used as an indicator dye. It is reduced to an insoluble formazan that is used as a vital dye or indicator of cellular redox activity. Reduction commonly results from the activity of dehydrogenases, although non-
Chemical properties
slightly yellow powder
The Uses of Iodonitrotetrazolium chloride
Iodonitrotetrazolium chloride has been used for the staining of cells. It has been used as a coupling agent in the enzymatic assay of D-arabinitol.
The Uses of Iodonitrotetrazolium chloride
Electron acceptor for the colorimetric assay of various dehydrogenases.
The Uses of Iodonitrotetrazolium chloride
Iodonitrotetrazolium chloride (INT) on reduction gets converted to iodonitrotetrazolium formazan, a water insoluble violet colored dye or indicator. Hence INT can be used for the colorimetric assay of various dehydrogenases.
What are the applications of Application
Iodonitrotetrazolium chloride is an electron acceptor that forms a formazan dye on reduction; measures dehydrogenase activity
Definition
ChEBI: An organic chloride salt having iodonitrotetrazolium as the counterion.
Safety
Iodonitrotetrazolium chloride could cause skin irritation, serious eye irritation, and may cause respiratory irritation.
Purification Methods
Recrystallise the chloride from H2O, aqueous EtOH or EtOH/Et2O. Alternatively, dissolve it in the minimum volume of EtOH and add Et2O; or dissolve it in hot H2O (charcoal), filter and precipitate it by adding conc HCl. Filter the solid off and dry it at 100o. Its solubility in H2O at 25o is 0.5%, and in hot MeOH/H2O (1:1) it is 5%. [Fox & Atkinson J Am Chem Soc 72 3629 1950, Beilstein 26 III/IV 1776.]
Properties and Applications
INT (Iodonitrotetrazolium chloride), similar to tetrazolium chloride on reduction, produces a red formazan dye that can be used for quantitative redox assays. It is also toxic to prokaryotes.INT is an artificial electron acceptor that can be utilized in a colorimetric assay to determine protein concentration in a solution. It can be reduced by succinate dehydrogenase to furazan, the formation of which can be measured by absorbance at 490 nm. The activity of succinate dehydrogenase is readily observed by the naked eye as the solution turns from colorless to rusty red.
Properties of Iodonitrotetrazolium chloride
Melting point: | 240 °C (dec.)(lit.) |
storage temp. | 2-8°C |
solubility | methanol: water (1:1): 50 mg/mL hot, very faintly turbid, very deep yellow |
form | Powder, Crystals and/or Chunks |
color | White to off-white |
Water Solubility | soluble |
Sensitive | Light Sensitive |
λmax | 248nm |
BRN | 4093224 |
Stability: | Stable. Incompatible with strong oxidizing agents. |
Biological Applications | Bacterial vaginosis diagnosis assay; dehydrogenase enzyme assay; diagnostic assay; food and beverage analytes assays; microbial growth assay; detecting bacteria,yeast,fungi,gamma-hydroxybutyric acid (GHB),microbial growth; measuring niacin,bacterial respiratory activity,superoxide dismutase;treating cancer |
InChI | InChI=1S/C19H13IN5O2.ClH/c20-15-6-8-16(9-7-15)23-21-19(14-4-2-1-3-5-14)22-24(23)17-10-12-18(13-11-17)25(26)27;/h1-13H;1H/q+1;/p-1 |
CAS DataBase Reference | 146-68-9(CAS DataBase Reference) |
EPA Substance Registry System | 2H-Tetrazolium, 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyl-, chloride (146-68-9) |
Safety information for Iodonitrotetrazolium chloride
Signal word | Danger |
Pictogram(s) |
Flame Flammables GHS02 Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H228:Flammable solids H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for Iodonitrotetrazolium chloride
InChIKey | JORABGDXCIBAFL-UHFFFAOYSA-M |
SMILES | [N+]1(=NC(C2C=CC=CC=2)=NN1C1C=CC(I)=CC=1)C1=CC=C([N+]([O-])=O)C=C1.[Cl-] |
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