Chemical Property of Picrolonic acid
Chemical Property:
- Appearance/Colour:beige to ochre-yellow powder
- Vapor Pressure:4.26E-12mmHg at 25°C
- Melting Point:119 °C
- Refractive Index:1.714
- Boiling Point:548.8 °C at 760 mmHg
- PKA:2.44±0.40(Predicted)
- Flash Point:285.7 °C
- PSA：124.31000
- Density:1.65 g/cm3
- LogP:1.50960
- Storage Temp.:Refrigerator (+4°C)
- Solubility.:0.27 % in water at room temperature, readily soluble in alcohol.
- Water Solubility.:Slightly soluble in water. Soluble in alcohol.
- XLogP3:1.2
- Hydrogen Bond Donor Count:0
- Hydrogen Bond Acceptor Count:6
- Rotatable Bond Count:1
- Exact Mass:264.04946937
- Heavy Atom Count:19
- Complexity:444
- Purity/Quality:
-
97% *data from raw suppliers
3-Methyl-4-nitro-1-(4-nitrophenyl)-1H-pyrazol-5(4H)-one 95% *data from reagent suppliers
Safty Information:
- Pictogram(s):
Xn,
Xi
- Hazard Codes:Xn,Xi
- Statements:
68-36/37/38-22-36/38-7
- Safety Statements:
37/39-26-36
- MSDS Files:
-
SDS file from LookChem
Useful:
- Chemical Classes:Nitrogen Compounds -> Pyrazoles
- Canonical SMILES:CC1=NN(C(=O)C1[N+](=O)[O-])C2=CC=C(C=C2)[N+](=O)[O-]
-
Uses
As reagent for alkaloids, tryptophan, phenylalanine, and for the detection and estimation of calcium. With calcium(II), lead(II) and thorium(IV) the reagent gives complexes which
are practically insoluble in water. The high molecular weight crystalline complexes
can be used to advantage for the accurate determination of minute amounts of
various metals.
The reagent has also proved suitable for the spectrophotometric determination
of calcium. Calcium picrolonate is transformed by bromine water in alkaline
medium to a red, water-soluble complex. The absorption of PICROLONIC ACID is
constant for about two days and it also follows the Beer-Lambert Law. Reagent for the isolation of amines as crystalline π-complexes.Picrolonic acid is an analytical reagent used for the estimation of calcium, magnesium, lead, strontium and thorium. It is also used for the analysis of alkaloids, tryptophan and phenylalanine.
