Benzenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-5-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:2)
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![Benzenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-5-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:2) structure](https://file.echemi.com/fileManage/upload/canonicalSmiles/20220811/abddfe062e95405aafe1079144a82dda.png "Benzenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-5-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:2)")
Benzenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-5-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:2)
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CAS No:
4196-99-0
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Formula:
C22H16N4O7S2.2Na
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Chemical Name:
Benzenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-5-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:2)
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Synonyms:
Benzenesulfonic acid,2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-5-[2-(4-sulfophenyl)diazenyl]-,sodium salt (1:2);C.I. Acid Red 66,disodium salt;Biebrich Scarlet WS;C.I. Acid Red 66;Benzenesulfonic acid,2-[(2-hydroxy-1-naphthalenyl)azo]-5-[(4-sulfophenyl)azo]-,disodium salt;C.I. 26905;Acid Scarlet BA;Amacid Chrome Red 3B;Amacid Red 3B;Biebrich Scarlet;Calcochrome Red 650;Cloth Red G;Fast Scarlet BA;Fenazo Scarlet B;Imperial Scarlet 3B;Imperial Scarlet 3BN;Naphthazine Scarlet BI;Ponceau BS;Red HM;Scarlet Red Sulfonate NF;Wool Scarlet 5R;Wool Scarlet BR;Scarlet 3B;Biebrich Scarlet water soluble;Croceine scarlet;Acid Red 66;2-[(2-Hydroxy-1-naphthyl)azo]-5-[(4-sulfophenyl)azo]benzenesulfonic acid disodium salt;Acid Scarlet B;NSC 79710
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CAS No:
Description
dark red powder
Biebrich scarlet is an organic sodium salt having 2-[(2-hydroxynaphthalen-1-yl)diazenyl]-5-[(4-sulfonatophenyl)diazenyl]benzene-1-sulfonate as the counterion. Used as a plasma stain in Masson's trichrome. It has a role as a histological dye. It contains a Biebrich scarlet(2-).
Benzenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-5-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:2) Basic Attributes
556.48
556.009949
224-084-5
DTXSID2063345
32041200
Characteristics
200.83000
7.34600
Powder
181-188 °C
300°(572°F)
ethanol: 1 mg/mL
Store at +15°C to +30°C.
Safety Information
NONH for all modes of transport
3
36/37/38-20/21/22
37/39-26-36
Xi,Xn
Stable. Incompatible with strong oxidizing agents.
|Warning|H302 (33.33%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, and P501|Aggregated GHS information provided by 8 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Benzenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-5-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:2) Use and Manufacturing
Benzenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-5-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:2): ACTIVE
Computed Properties
Molecular Weight:556.5
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:11
Rotatable Bond Count:4
Exact Mass:556.00992971
Monoisotopic Mass:556.00992971
Topological Polar Surface Area:201
Heavy Atom Count:37
Complexity:958
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes
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