6359-54-2

Basic information

• Product Name: C. I. Acid yellow 18
• Synonyms: C. I. Acid yellow 18;3-Chloro-4-[4,5-dihydro-3-methyl-5-oxo-4-[(4-sulfophenyl)azo]-1H-pyrazol-1-yl]-5-methylbenzenesulfonic acid disodium salt;C.I.19020;Supracen Yellow G
• CAS NO: 6359-54-2
• Molecular Formula: C17H15 Cl N4 O7 S2 . 2 Na
• Molecular Weight: 0
• Mol File: 6359-54-2.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: C. I. Acid yellow 18(CAS DataBase Reference)
• NIST Chemistry Reference: C. I. Acid yellow 18(6359-54-2)
• EPA Substance Registry System: C. I. Acid yellow 18(6359-54-2)

Safety Data

• Hazardous Substances Data: 6359-54-2(Hazardous Substances Data)

Usage

Description

C. I. Acid Yellow 18 is a synthetic dye that exhibits greenish yellow color. It is primarily used in the textile industry for dyeing and printing applications.

Uses

Used in Textile Industry:
C. I. Acid Yellow 18 is used as a dye for wool and silk fibers, as well as for wool and silk fabrics in direct printing. It is suitable for dyeing in a pH range of 4 to 7 and a temperature range of 70 to 90°C.
Standard:
C. I. Acid Yellow 18 meets the following standards in terms of fastness and performance:
1. Light Fastness: ISO 6
2. Soaping Fastness: 2
3. Perspiration Fastness: 3-4
4. Oxygen Bleaching: 2-3
5. Fastness to Seawater: 2-3
These standards indicate the dye's resistance to fading and staining under various conditions, making it a reliable choice for textile applications.

Preparation

4-Aminobenzenesulfonic acid?diazo, and 1-(2-Methyl-4-sulfo-6-chlorophenyl)-3-methyl-5-pyrazolone coupling.

Standard

Light Fastness

Fading

Stain

ISO

6

InChI:InChI=1/C17H15ClN4O7S2.2Na/c1-9-7-13(31(27,28)29)8-14(18)16(9)22-17(23)15(10(2)21-22)20-19-11-3-5-12(6-4-11)30(24,25)26;;/h3-8,15H,1-2H3,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2