ALPHA-NAPHTHOLBENZEIN
Synonym(s):4,4′-(α-Hydroxybenzylidene)di-1-naphthol;p-naphtholbenzein
- CAS NO.：6948-88-5
- Empirical Formula: C27H20O3
- Molecular Weight: 392.45
- MDL number: MFCD00003979
- EINECS: 230-116-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-04 15:30:10
What is ALPHA-NAPHTHOLBENZEIN?
Chemical properties
RED-BROWN POWDER
The Uses of ALPHA-NAPHTHOLBENZEIN
α-Naphtholbenzein can be used as an indicator during non-aqueous titration.
Purification Methods
-{4-hydroxynaphth-1-yl})-benzyl alcohol] B2319 M 392.5, m 122-125o, ~ 9.3. Crystallise the alcohol from EtOH, aqueous EtOH or glacial acetic acid. pKEst [Beilstein 6 H 1150.B2319]
Properties of ALPHA-NAPHTHOLBENZEIN
| Melting point: | 230-235 °C(lit.) |
| Boiling point: | 477.16°C (rough estimate) |
| Density | 1.1098 (rough estimate) |
| refractive index | 1.5460 (estimate) |
| storage temp. | Amber Vial, Room Temperature |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Powder |
| pka | 9.14±0.40(Predicted) |
| color | Red-brown |
| PH Range | 8.5(YELLOW)-9.8(GREEN) |
| CAS DataBase Reference | 6948-88-5(CAS DataBase Reference) |
Safety information for ALPHA-NAPHTHOLBENZEIN
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for ALPHA-NAPHTHOLBENZEIN
New Products
Indole Methyl Resin tert-butyl 9-methoxy-3-azaspiro[5.5]undecane-3-carboxylate Boc-His(Boc)-OH 2-CTC Resin 4-Chloro-7-tosy1-7Hpyrrolo[2,3-d]pyrimidine 5,7-Dibromo-1H-indole 2,5-dichloro-N-hydroxy-4,6-dimethylpyridine-3-carboximidamide 2,2-Dimethoxy-7-azaspiro[3.5]nonane hydrochloride 4-chloromethyl-5-methyl-1,3-dioxol-2-one (DMDO-Cl) R-2-BENZYLOXY PROPIONIC ACID 1,1’-CARBONYLDIIMIDAZOLE 1,1’-CARBONYLDI (1,2-4 TRIAZOLE) N-METHYL INDAZOLE-3-CARBOXYLIC ACID 4-((2-hydroxyethyl)thio)benzoic acid 1-(TERT-BUTOXYCARBONYL)-2-PYRROLIDINONE Methyl 6-methylnicotinate 3-Pyridineacrylic acid tert-Butyl carbazate TETRAHYDRO-2H-PYRAN-3-OL 2-((4-morpholinophenylamino) (methylthio) methylene) malononitrile 3-(4-morpholinophenylamino)-5-amino-1H-pyrazole-4-carbonitrile 2,4-dihydroxybenzaldehyde 1,3-Diethyl-1,3-Diphenylurea Methyl 2-methylquinoline-6-carboxylateRelated products of tetrahydrofuran
You may like
-
Alpha-naphtholbenzein 95% CAS 6948-88-5View Details
6948-88-5 -
Pyridine 99.5% HPLC /UV SpectroscopyView Details
110-86-1 -
Guanine , 99%View Details
73-40-5 -
Piperazine Spot supply, best priceView Details
110-85-0 -
Dibutyl PhthalateView Details
84-74-2 -
Imidazole Spot supply, competitive priceView Details
288-32-4 -
Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate 98% (GC)View Details
2082-79-3 -
Thiourea 99% ARView Details
62-56-6
Statement: All products displayed on this website are only used for non medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.