Chemical Property of C.I. Direct Red 2
Chemical Property:
- Appearance/Colour:dark red or brown powder
- Melting Point:ca. 290 C (decomposes)
- Boiling Point:°Cat760mmHg
- Flash Point:°C
- PSA：232.64000
- Density:g/cm3
- LogP:11.40420
- Storage Temp.:Amber Vial, -20°C Freezer
- Solubility.:Solubility Soluble in water, ethanol, acetone, sodium hydroxide,
- Water Solubility.:Soluble in water (20 mg/ml), acetone, ethanol (3 mg/ml), sodium hydroxide, and sulfuric acid.
- Hydrogen Bond Donor Count:2
- Hydrogen Bond Acceptor Count:12
- Rotatable Bond Count:5
- Exact Mass:724.11506348
- Heavy Atom Count:50
- Complexity:1250
- Purity/Quality:
-
98%,99%, *data from raw suppliers
Benzopurpurin 4B *data from reagent suppliers
Safty Information:
- Pictogram(s):
- Hazard Codes:T
- Statements:
45-36/37/38
- Safety Statements:
53-45-60-37-26
- MSDS Files:
-
SDS file from LookChem
Useful:
- Chemical Classes:Dyes -> Benzidine Dyes
- Canonical SMILES:CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C4=CC=CC=C4C(=C3)S(=O)(=O)[O-])N)C)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N.[Na+].[Na+]
-
Uses
For dyeing primarily cotton and viscose rayon: Colour Index vol. 2 (3rd ed., 1971) p 2101. As an analytical reagent in detection of Al, Mg, Hg, Ag, U; as a biological stain; as pH indicator, violet 1.2 to red 4.0. Benzopurpurine 4B is a biological stain and pH indicator for pH 2.3-4.4.
