8005-52-5 Usage
Uses
Direct yellow 44 (CAS# 8005-52-5) is a water-soluble organic azo dye and water pollutant.
Preparation
3-Aminobenzenesulfonic acid diazo, and (2-Methoxyphenylamino)methanesulfonic acid coupling. Then the water with sulfonic acid base, compounds (A) (coupling components is O-Anisidine with Formaldehyde?and sodium sulfite and processing); 4-Nitrobenzenamine diazo, coupled with 2-Hydroxybenzoic acid, and then will the nitro reduction, compound (B). Finally the molecular A and B mixture light gasification.
Flammability and Explosibility
Notclassified
Properties and Applications
yellow. Brown powder. Soluble in water for green light yellow, slightly soluble in alcohol. The strong sulfuric acid dyes for red, diluted into shallow purple. The dye solution to join strong hydrochloric acid into Red sauce, accompanied by precipitation; Add thick sodium hydroxide solution to brown light orange, precipitation. Water-soluble, a little sensitive fights. In 90 ℃ the solubility of 60 g/L. For tender yellow light. In dye bath of copper ions in a little turned dark colored light and red (3 class); Iron ion in slightly turned dark colored light and red (category 4). For A class SDC classification. Used for cotton, viscose, silk, polyamide, polyester/cotton blended fabric dyeing and printing directly, can also be used for leather, paper and ink color.
Standard
Acid Resistance
Alkali Resistance
Light Fastness
Soaping
Water
Fading
Stain
Fading
Stain
ISO
3-4
3-4
5
2-3
2-3
AATCC
3
3
4-5
3
2
Standard
Acid Resistance
Fading
Stain
ISO
3-4
AATCC
3
Check Digit Verification of cas no
The CAS Registry Mumber 8005-52-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,0 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 8005-52:
(6*8)+(5*0)+(4*0)+(3*5)+(2*5)+(1*2)=75
75 % 10 = 5
So 8005-52-5 is a valid CAS Registry Number.
InChI:InChI=1/C27H22N6O8S.2Na/c1-41-25-15-20(33-31-18-3-2-4-21(13-18)42(38,39)40)9-11-23(25)29-27(37)28-16-5-7-17(8-6-16)30-32-19-10-12-24(34)22(14-19)26(35)36;;/h2-15,34H,1H3,(H,35,36)(H2,28,29,37)(H,38,39,40);;/q;2*+1/p-2/b32-30+,33-31+;;
