| Identification | Back Directory | [Name]
Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, reaction products with 3-[(4-amino-5-methoxy-2-methylphenyl)azo]benzenesulfonic acid monosodium salt | [CAS]
1325-61-7 | [Synonyms]
Direct orange 37 (C.I. 40260)
C.I.Direct Orange 37:C.I.40260/40265
3-[(4-amino-5-methoxy-2-methylphenyl)diazenyl]benzenesulfonate
5-nitro-2-[(E)-2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid
Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, reaction products with 3-[(4-amino-5-methoxy-2-methylphenyl)azo]benzenesulfonic acid monosodium salt | [EINECS(EC#)]
215-400-2 | [Molecular Formula]
C28H24N5NaO14S3 | [MOL File]
1325-61-7.mol | [Molecular Weight]
773.7 |
| Hazard Information | Back Directory | [Preparation]
in reflux conditions, sodium hydroxide solution in 1,2-Bis(4-nitro-2-sulfophenyl)ethane sodium salt between two with 3-Aminobenzenesulfonic acid?diazotization and 2-Amino-4-methylanisole coupled with product heating (40260). In reflux conditions (or a little take pressure), in sodium hydroxide solution 1,2-Bis(4-nitro-2-sulfophenyl)ethane?with ?4-Aminobenzenesulfonic acid sodium diazotization and 2-Amino-4-methylanisole coupled with product heating (40265). | [Properties and Applications]
red light orange. Soluble in water for yellow, slightly soluble in ethanol for palm, soluble in acetone tan. The strong sulfuric acid for purple; In strong hydrochloric acid solution for tan. Used for cellulose fiber dyeing and printing, can be in wool and silk printing directly on, also can used for leather and paper color. Exhaust dyeing.
|
Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
|
Water
|
|
Fading
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Stain
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Fading
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Stain
|
|
ISO
|
4
|
4
|
6
|
3
|
|
3
|
|
|
AATCC
|
3
|
2-3
|
5-6
|
2-3
|
|
2-3
|
|
|
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