| Identification | More | [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 |
| Safety Data | Back 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 | [TSCA ]
TSCA listed | [HS Code ]
2927 00 00 | [Storage Class]
8A - Combustible corrosive hazardous materials | [Hazard Classifications]
Eye Dam. 1
Skin Corr. 1 |
| Hazard Information | Back Directory | [Description]
Hydroxynaphthol blue, a well-known pH indicator in the field of biomedicine, is employed to accurately quantify pH fluctuations in various biological specimens. Besides, its utility extends to serving as a colorimetric reagent, notably in laboratory settings, aiding in the identification of select pharmaceuticals and ailments. | [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 - |
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