4403-90-1 Usage
Chemical Properties
dark green powder
Uses
Different sources of media describe the Uses of 4403-90-1 differently. You can refer to the following data:
1. For nylon sutures: Fed. Regist. 42, 52395 (1977). Permitted for use in drugs and cosmetics, excluding use in eye area: ibid. 47, 49628 (1982).
2. Acid Green 25 (cas# 4403-90-1) is an organic acid dye. Acid green 25 can undergo colour when co-intercalated with acid yellow 25 into the interlayer of ZnAl layered double hydroxides.Dyes and metabolites.
Preparation
(a) ?anthracene-1,4,9,10-tetraol?or 1,4-Dihydroxyanthracene-9,10-dione and anthracene-1,4,9,10-tetraol?mixture?with 2 moles of p-Methylaniline in the presence of boric acid condensation; (b) 1,4-Dichloroanthracene-9,10-dione and 2 Moore’s p-Methylaniline?condensation, its product (C.I. Solvent Green 3, C.I. 61565) products, and translate into sodium salt.
General Description
Fine black or green powder.
Air & Water Reactions
Slightly soluble in water.
Reactivity Profile
Acid Green 25 is incompatible with strong oxidizing agents. .
Fire Hazard
Flash point data for Acid Green 25 are not available. Acid Green 25 is probably combustible.
Flammability and Explosibility
Nonflammable
Safety Profile
Moderately toxic by ingestion. Askin and severe eye irritant. When heated to decomposition it emits very toxic fumesof NOx, SOx, and Na2O.
Properties and Applications
blue light green. Green powder. Soluble in water, no solution at room temperature gather the tendency. Soluble in o-chlorophenol, slightly soluble in acetone, ethanol, Pyridine, insoluble in chloroform, toluene. The strong sulfuric acid dyes shows blackish green color, diluted Tracy turn blue; In nitric acid are brown. The little blue water solution, and a blue hydrochloric acid; Add sodium hydroxide is blue light green. Used for wool, polyamide, silk and their blended fabric dyeing and printing. Can also be used in leather, paper, cosmetics, soap, wood, electrical-controlled aluminum and biological color.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
6
3
2
4
2
1
4
3-4
AATCC
5
4
4
3
3
3
4
4
Standard
Light Fastness
Fading
Stain
ISO
6
AATCC
5
Purification Methods
Purify it by salting out three times from an aqueous solution with sodium acetate, followed by repeated extraction with EtOH [McGrew & Schneider J Am Chem Soc 72 2547 1950]. It is a green powder that is slightly soluble in Me2CO, EtOH and pyridine. It is soluble in conc H2SO4 to give a blue solution that becomes turquoise on dilution. [Allen et al. J Org Chem 7 63 1942, Beilstein 14 H 725.]
Check Digit Verification of cas no
The CAS Registry Mumber 4403-90-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,0 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4403-90:
(6*4)+(5*4)+(4*0)+(3*3)+(2*9)+(1*0)=71
71 % 10 = 1
So 4403-90-1 is a valid CAS Registry Number.
InChI:InChI=1/C28H22N2O8S2.2Na/c1-15-7-9-19(23(13-15)39(33,34)35)29-21-11-12-22(30-20-10-8-16(2)14-24(20)40(36,37)38)26-25(21)27(31)17-5-3-4-6-18(17)28(26)32;;/h3-14,29-30H,1-2H3,(H,33,34,35)(H,36,37,38);;/q;2*+1/p-2