| | Identification | Back Directory |  | [Name] 
 disodium 4-amino-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-6-(1-naphthylazo)naphthalene-2,7-disulphonate
 |  | [CAS] 
 5850-34-0
 |  | [Synonyms] 
 C.I.20440
 Acid Green 19
 Mordant Green 11
 C.I.Acid Green 19
 Wool Fast Green B
 Acid green 19 (C.I. 20440)
 C.I.Acid Green 19:C.I.20440
 C.I.Mordant Green 11:C.I.20440
 disodium 4-amino-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-6-(1-naphthylazo)naphthalene-2,7-disulphonate
 2,7-Naphthalenedisulfonic acid, 4-amino-3-(2,5-dichlorophenyl)azo-5-hydroxy-6-(1-naphthalenylazo)-, disodium salt
 4-Amino-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-6-(naphthalen-1-ylazo)-2,7-naphthalenedisulfonic acid disodium salt
 |  | [EINECS(EC#)] 
 227-448-1
 |  | [Molecular Formula] 
 C26H15Cl2N5Na2O7S2
 |  | [MDL Number] 
 MFCD00050440
 |  | [MOL File] 
 5850-34-0.mol
 |  | [Molecular Weight] 
 690.442
 | 
 | Hazard Information | Back Directory |  | [Preparation] 
 2,5-Dichlorobenzenamine diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?in acid conditions coupled, its product again with diazo of Naphthalen-1-amine in alkaline conditions coupled.
 |  | [Properties and Applications] 
 Dark blue light green. Soluble in water for blue light green, and partly dissolved in ethanol. The strong sulfuric acid for blue-ray black, diluted change to blue. The dye solution to join strong hydrochloric acid for blue-ray green; Add thick sodium hydroxide solution for red light blue.
 
 
 
 
 | Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater |  
 | Fading | Stain | Fading | Stain | Fading | Stain |  
 | ISO | 3 | 3 | 5 | 4 | 4 | 2 | 4 | 5 |  | 
 |  |