1-[(1-Hydroxy-2-naphthyl)azo]-2-naphthol-6-nitro-4-sulfonic acid
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![1-[(1-Hydroxy-2-naphthyl)azo]-2-naphthol-6-nitro-4-sulfonic acid structure](https://file.echemi.com/fileManage/upload/canonicalSmiles/20220812/7f3082fb55624a5598ad922567b54d18.png "1-[(1-Hydroxy-2-naphthyl)azo]-2-naphthol-6-nitro-4-sulfonic acid")
1-[(1-Hydroxy-2-naphthyl)azo]-2-naphthol-6-nitro-4-sulfonic acid
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CAS No:
25747-08-4
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Formula:
C20H13N3O7S
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Chemical Name:
1-[(1-Hydroxy-2-naphthyl)azo]-2-naphthol-6-nitro-4-sulfonic acid
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Synonyms:
1-Naphthalenesulfonic acid,3-hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-7-nitro-;C.I. Mordant Black 11;1-Naphthalenesulfonic acid,3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-;C.I. Mordant Black 11,free acid;2-Naphthol-4-sulfonic acid,1-(1-hydroxy-2-naphthylazo)-6-nitro-;3-Hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-7-nitro-1-naphthalenesulfonic acid;1-[(1-Hydroxy-2-naphthyl)azo]-2-hydroxy-6-nitro-4-sulfonaphthalene;1-[(1-Hydroxy-2-naphthyl)azo]-2-naphthol-6-nitro-4-sulfonic acid;Eriochrome Black T free acid;2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-6-nitro-4-naphthalenesulfonic acid
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CAS No:
Description
4-[(1-hydroxy-2-naphthalenyl)hydrazinylidene]-7-nitro-3-oxo-1-naphthalenesulfonic acid is a nitronaphthalene.
1-[(1-Hydroxy-2-naphthyl)azo]-2-naphthol-6-nitro-4-sulfonic acid Basic Attributes
439.39800
439.40
217-250-3|247-237-8
DTXSID0067137
Safety Information
|Warning|H319 (33.33%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]|P264, P273, P280, P305+P351+P338, P337+P313, and P501|Aggregated GHS information provided by 4 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H315 (22.45%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P391, P403+P233, P405, and P501|Aggregated GHS information provided by 53 companies from 11 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Drug Information
Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS. (See all compounds classified as Coloring Agents.)
C.I. mordant black 11
1-[(1-Hydroxy-2-naphthyl)azo]-2-naphthol-6-nitro-4-sulfonic acid Use and Manufacturing
1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-7-nitro-: ACTIVE
Computed Properties
Molecular Weight:439.4
XLogP3:4.1
Hydrogen Bond Donor Count:3
Hydrogen Bond Acceptor Count:9
Rotatable Bond Count:3
Exact Mass:439.04742094
Monoisotopic Mass:439.04742094
Topological Polar Surface Area:174
Heavy Atom Count:31
Complexity:796
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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