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63451-35-4

63451-35-4 Structure

63451-35-4 Structure
IdentificationMore
[Name]

HYDROXYNAPHTHOL BLUE
[CAS]

63451-35-4
[Synonyms]

1-(2-HYDROXY-4-SULFO-1-NAPHTHYLAZO)-2-NAPHTHOL-3,6-DISULFONIC ACID TRISODIUM SALT
1-(2-NAPHTHOLAZO-3,6-DISULFONIC ACID)-2-NAPHTHOL-4-SULFONIC ACID DISODIUM SALT
2,2'-DIHYDROXY-1,1'-AZONAPHTHALENE-3,4,6'-TRISULFONIC ACID TRISODIUMSALT
3-HYDROXY-4-(2-HYDROXY-4-SULFO-1-NAPHTHYLAZO)NAPHTHALENE-2,7-DISULFONIC ACID TRISODIUM SALT
CALVER(R) 2 CALCIUM INDICATOR
HYDROXYNAPHTHOL BLUE
HYDROXYNAPHTHOL BLUE INDICATOR
HYDROXYNAPHTHOL BLUE TRISODIUM SALT
7-naphthalenedisulfonicacid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-trisodiumsalt
trisodium 3-hydroxy-4-[(2-hydroxy-4-sulphonato-1-naphthyl)azo]naphthalene-2,7-disulphonate
Hnb
Hydroxy-1-(2-Hydroxy-4-Sulfo-1-Naphthylazo)-3,6-NaphthalenedIsulfonicAcidTrisodiumSalt
HydroxyethylCelluloseHighViscosity(10)
2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-(2-hydroxy-4-sulfo-1-naphthalenyl)azo-, trisodium salt
2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3,6-naphthalenedisulfonicacid,trisodiumsalt
2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3,6-naphthalenedisulfonic aci
1-(2-Hydroxy-4-sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonic acid trisodium salt, 3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2,7-disulfonic acid trisodium salt
3-Hydroxy-4-[(2-hydroxy-4-sodiosulfonaphthalen-1-yl)azo]-2,7-naphthalenedisulfonic acid disodium salt
[EINECS(EC#)]

264-197-7
[Molecular Formula]

C20H11N2Na3O11S3
[MDL Number]

MFCD00036393
[Molecular Weight]

620.47
[MOL File]

63451-35-4.mol
Chemical PropertiesBack Directory
[Appearance]

blue crystalline powder
[storage temp. ]

Store at +15°C to +30°C.
[solubility ]

340g/l
[form ]

Solid
[color ]

Dark Gray
[PH]

2-3 (10g/l, H2O, 20℃)
[Stability:]

Stable. Incompatible with strong oxidizing agents.
[CAS DataBase Reference]

63451-35-4(CAS DataBase Reference)
[EPA Substance Registry System]

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-, trisodium salt (63451-35-4)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
[WGK Germany ]

WGK 3 highly water endangering
[HS Code ]

2927 00 00
Hazard InformationBack Directory
[Chemical Properties]

blue crystalline powder
[Uses]

Hydroxynapthol Blue is a pharmaceutical dye used in colorimetric analyses.
[Purification Methods]

The crude material is treated with hot EtOH to remove soluble impurities, then dissolve in 20% aqueous MeOH and chromatographed on a cellulose powder column with propanol/EtOH/water (5:5:4) as eluent. The upper of three zones was eluted to give the pure dye which is precipitated as the monosodium salt trihydrate by adding conc HCl to the concentrated eluate [Ito & Ueno Analyst 95 583 1970]. It can be converted to the trisodium salt wih the calculated amount of alkali. Indigocarmine (2[1,3-dihydro-3-oxo-5-sulfo-2H -indol-2-ylidene]-2,3-dihydro-3-oxo-1H -
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

63451-35-4(sigmaaldrich)
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