62152-67-4 Usage
Description
ALKALI BLUE 4B is an organic sodium salt with the counterion 2-(4-(4-amino-3-methylphenyl)[4-(phenylimino)cyclohexa-2,5-dien-1-ylidene]methylanilino)benzene-1-sulfonate. It is characterized by its blue color, insolubility in water, solubility in hot water, and slight solubility in alcohol. The strong sulfuric acid turns it into a colorless substance, which then precipitates and turns blue upon dilution. ALKALI BLUE 4B is primarily used for staining elastic fibers.
Uses
Used in Histopathology:
ALKALI BLUE 4B is used as a staining agent for elastic fibers in histopathology. It helps in the visualization and identification of elastic fibers in tissue samples, which is crucial for the diagnosis of various diseases and conditions affecting the elastic fibers.
Used in Textile Industry:
ALKALI BLUE 4B is used as a dye in the textile industry for coloring fabrics. Its properties, such as light fastness, soaping fastness, and resistance to oxygen bleaching and seawater, make it a suitable choice for various applications in the textile industry.
Used in Analytical Chemistry:
ALKALI BLUE 4B can be used as an indicator in analytical chemistry due to its color-changing properties in the presence of strong sulfuric acid. This makes it useful for detecting the presence of specific ions or compounds in a sample.
Standards and Fastness:
ALKALI BLUE 4B has been tested and graded according to ISO and AATCC standards for various properties:
Light Fastness: Rated 2-3 on the ISO scale, indicating moderate to good resistance to fading when exposed to light.
Soaping Fastness: Rated 2 on both ISO and AATCC scales, suggesting that the color may fade when exposed to soap or detergent.
Oxygen Bleaching: Rated 2 on the ISO scale, indicating that the color may fade when exposed to oxygen bleach.
Fastness to Seawater: Rated 2 on the ISO scale, suggesting that the color may fade when exposed to seawater.
Preparation
products with strong sulfuric acid C.I. Solvent Blue 3 (C.I. 42775), and translated into sodium salt.
Standard
Light Fastness
Fading
Stain
ISO
2
Check Digit Verification of cas no
The CAS Registry Mumber 62152-67-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,1,5 and 2 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 62152-67:
(7*6)+(6*2)+(5*1)+(4*5)+(3*2)+(2*6)+(1*7)=104
104 % 10 = 4
So 62152-67-4 is a valid CAS Registry Number.
InChI:InChI=1/C32H27N3O3S.Na/c1-22-21-25(15-20-29(22)33)32(23-11-16-27(17-12-23)34-26-7-3-2-4-8-26)24-13-18-28(19-14-24)35-30-9-5-6-10-31(30)39(36,37)38;/h2-21,34H,33H2,1H3,(H,36,37,38);/q;+1/p-1/b32-24-,35-28-;
