2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2)
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![2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2) structure](https://file.echemi.com/fileManage/upload/canonicalSmiles/20220811/5b6d879808ff4ea2a867bfebae09fcab.png "2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2)")
2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2)
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CAS No:
157577-99-6
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Formula:
C34H28N10O9S3.2Na
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Chemical Name:
2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2)
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Synonyms:
2,7-Naphthalenedisulfonic acid,4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-,sodium salt (1:2);2,7-Naphthalenedisulfonic acid,4-amino-3-[[4-[[[4-[(2,4-diaminophenyl)azo]phenyl]sulfonyl]amino]phenyl]azo]-5-hydroxy-6-(phenylazo)-,disodium salt;C.I. 30027;C.I. Acid Black 234;Acid Black 234;Dynacid Black 2N;Acid Black NB-G;Formo Leather Black;Vicoacid Black 234;Colocid Black NB;Coriamine Black NB-G;Kemacid Black NBG;Acid Black NB;Lecotan Black GW;Apollo Leather Black NGRL;Acid Black BA;Victalan Black UX;Sandal Acid Black NB-G;Acid Black NR;Dinacid Black NBH;Acid Black BG;Lecotan Black NGS;Acid TSA Black 234
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CAS No:
2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2) Basic Attributes
860.8
860.084167
605-104-5
Safety Information
|Danger|H318 (96.88%): Causes serious eye damage [Danger Serious eye damage/eye irritation]|P273, P280, P305+P351+P338, P310, and P501|Aggregated GHS information provided by 39 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2) Use and Manufacturing
Using 4, 4'-diaminobenzenesulfonanilide, H acid, aniline and m-phenylenediamine as raw materials, firstly diazotize 4, 4'-diaminobenzenesulfonanilide and aniline respectively, and then separately with H acid Coupling and finally coupling with m-phenylenediamine to obtain the product. The finished product is obtained by salting out, filtering, drying and crushing.
Weak acid black NB-G is mainly used for dyeing wool, silk, cotton and viscose, and can also be used for leather coloring.
2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2): ACTIVE|PMN - indicates a commenced PMN (Pre-Manufacture Notices) substance.
Computed Properties
Molecular Weight:860.8
Hydrogen Bond Donor Count:5
Hydrogen Bond Acceptor Count:19
Rotatable Bond Count:9
Exact Mass:860.08417453
Monoisotopic Mass:860.08417453
Topological Polar Surface Area:358
Heavy Atom Count:58
Complexity:1710
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes
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2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-[4-[[[4-[2-(2,4-diaminophenyl)diazenyl]phenyl]sulfonyl]amino]phenyl]diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2)
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