Identification | More | [Name]
ETHYL ORANGE | [CAS]
62758-12-7 | [Synonyms]
4-[4-(DIETHYLAMINO)PHENYLAZO]BENZENESULFONIC ACID, SODIUM SALT 4-DIETHYLAMINOAZOBENZENE-4'-SULFONIC ACID SODIUM SALT 4-[P-(DIETHYLAMINO)PHENYLAZO]BENZENESULFONIC ACID ETHYL ORANGE ETHYL ORANGE SODIUM SALT LABOTEST-BB LT00452773 4-[[4-(diethylamino)phenyl]azo]-benzenesulfonicacisodiumsalt Benzenesulfonicacid,4-[[4-(diethylamino)phenyl]azo]-,sodiumsalt sodium p-[[p-(diethylamino)phenyl]azo]benzenesulphonate Diethyl orange ETHYL ORANGE, SODIUM SALT, INDICATOR GRA DE RESAZURINE REDOX INDICATOR EthylorangeAcs98% EthylOrangeSodium Ethylorange Acs 98% Ethyl Orange sodium salt, pure, 92% Ethyl orange sodium salt, 92%, pure | [EINECS(EC#)]
263-716-4 | [Molecular Formula]
C16H18N3NaO3S | [MDL Number]
MFCD00007503 | [Molecular Weight]
355.39 | [MOL File]
62758-12-7.mol |
Chemical Properties | Back Directory | [Appearance]
orange crystalline powder | [Melting point ]
>300°C | [storage temp. ]
room temp | [solubility ]
Very soluble in water; very slightly soluble in ethanol | [form ]
Powder | [pka]
4.34(at 25℃) | [color ]
Orange | [PH Range]
Red (3.4) to yellow (4.8) | [Water Solubility ]
H2O: 1mg/mL | [ε(extinction coefficient)]
≥29000 at 473-477nm in deionized water ≥8000 at 274-282nm in deionized water | [λmax]
474nm | [BRN ]
3821641 | [Major Application]
Lithographic plate preparation, holographic storage, hybrid materials, inks, surface probes, diagnostic agents for diseases related with amyloid accumulation | [CAS DataBase Reference]
62758-12-7(CAS DataBase Reference) | [EPA Substance Registry System]
Benzenesulfonic acid, 4-[[4-(diethylamino)phenyl]azo]-, sodium salt (62758-12-7) |
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 . | [WGK Germany ]
3
| [TSCA ]
Yes | [HS Code ]
29270000 |
Hazard Information | Back Directory | [Chemical Properties]
orange crystalline powder | [Uses]
Indicator: pH 3.0 (red) to pH 4.5 (yellow) | [Purification Methods]
Recrystallise it twice from water. [Beilstein 16 IV 511.] |
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