1325-61-7

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
EINECS(EC#)	215-400-2
Molecular Formula	C28H24N5NaO14S3
Molecular Weight	773.7
MOL File	1325-61-7.mol

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

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Hazard Information

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	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fading	Stain	Fading	Stain
ISO	4	4	6	3		3
AATCC	3	2-3	5-6	2-3		2-3

Supplier

Hangzhou Yaoruiyicheng Biological Medicine Co., Ltd

Telephone18072846723; 18072846723

Websitehttps://www.chemicalbook.com/ShowSupplierProductsList810586/0.htm

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