4,5-Dihydroxynaphthalene-3-(4-nitrophenylazo)-2,7-disulfonic acid disodium salt
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4,5-Dihydroxynaphthalene-3-(4-nitrophenylazo)-2,7-disulfonic acid disodium salt
structure -
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CAS No:
548-80-1
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Formula:
C16H11N3O10S2.2Na
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Chemical Name:
4,5-Dihydroxynaphthalene-3-(4-nitrophenylazo)-2,7-disulfonic acid disodium salt
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Synonyms:
2,7-Naphthalenedisulfonic acid,4,5-dihydroxy-3-[2-(4-nitrophenyl)diazenyl]-,sodium salt (1:2);C.I. Acid Red 176;C.I. Acid Red 176,disodium salt;2,7-Naphthalenedisulfonic acid,4,5-dihydroxy-3-[(4-nitrophenyl)azo]-,disodium salt;2,7-Naphthalenedisulfonic acid,4,5-dihydroxy-3-(p-nitrophenylazo)-,disodium salt;C.I. 16575;Chromotrope 2B;Chromotrope Red 4B;Naphtocard Fast Red 3B;p-Nitrobenzeneazochromotropic acid sodium salt;C.I. Mordant Black 93;Cr-2B;4,5-Dihydroxynaphthalene-3-(4-nitrophenylazo)-2,7-disulfonic acid disodium salt;Poly-chromotrope 2B;PCR 2B
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CAS No:
4,5-Dihydroxynaphthalene-3-(4-nitrophenylazo)-2,7-disulfonic acid disodium salt Basic Attributes
513.37
512.95200
4109733
208-959-9
81Y8BW5764
DTXSID0060278
2927000090
Safety Information
NONH for all modes of transport
3
36/37/38
26-36
Xi
P261-P305 + P351 + P338
H315-H319-H335
|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 40 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
4,5-Dihydroxynaphthalene-3-(4-nitrophenylazo)-2,7-disulfonic acid disodium salt Use and Manufacturing
Carry out diazotization reaction of p-nitroaniline, and then couple with sodium chromotrope to obtain chromotropic acid 2B.
As a dye; as a reagent for boric acid or borates.
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2): ACTIVE
Computed Properties
Molecular Weight:513.4
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:12
Rotatable Bond Count:2
Exact Mass:512.95247440
Monoisotopic Mass:512.95247440
Topological Polar Surface Area:242
Heavy Atom Count:33
Complexity:873
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes
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4,5-Dihydroxynaphthalene-3-(4-nitrophenylazo)-2,7-disulfonic acid disodium salt
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