| Identification | Back Directory | [Name]
Benzenesulfonic acid, 3,5-bis[(2,4-diamino-5-nitrophenyl)azo]-4-methyl-, monosodium salt | [CAS]
6441-67-4 | [Synonyms]
Direct Yellow 25
C.I.Direct Yellow 25:C.I.21510
Benzenesulfonic acid, 3,5-bis[(2,4-diamino-5-nitrophenyl)azo]-4-methyl-, monosodium salt | [EINECS(EC#)]
613-588-4 | [Molecular Formula]
C19H18N10O7S.Na | [MOL File]
6441-67-4.mol | [Molecular Weight]
553.47 |
| Hazard Information | Back Directory | [Preparation]
3,5-Diamino-4-methylbenzenesulfonic acid double nitriding,and 4-Nitrobenzene-1,3-diamine (2 Moore) coupled. | [Properties and Applications]
red light yellow. Soluble in water for yellow light brown. The strong sulfuric acid for brown, after diluted brown precipitation. The dye solution to join strong hydrochloric acid for brown, have precipitation; Add sodium hydroxide have soluble brown precipitation.
|
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Soaping
|
Water
|
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
4
|
4
|
1
|
2
|
|
2
|
|
|
|
|