Other grades of this product :
| p-Naphtholbenzein Basic information |
| Product Name: | p-Naphtholbenzein | | Synonyms: | α-Naphtholbenzein,4,4′-(α-Hydroxybenzylidene)di-1-naphthol, p-naphtholbenzein;alpha-Naphtholbenzein, pure, 90% 10GR;alpha-Naphtholbenzein, pure, 90% 25GR;1-NAPHTHOLBENZEIN INDICATOR 5 G;α- naphthol quinone phenylMethane;MAG BIND EQUIPURE GDNA (1X96);1-Naphtholbenzein indicator Reag. Ph Eur;1(4H)-Naphthalenone, 4-(4-hydroxy-1-naphthalenyl)phenylmethylene- | | CAS: | 145-50-6 | | MF: | C27H18O2 | | MW: | 374.43 | | EINECS: | 205-656-3 | | Product Categories: | Benzein;Analytical Chemistry;Indicator (pH);pH Indicators | | Mol File: | 145-50-6.mol |
| p-Naphtholbenzein Chemical Properties |
| Melting point | 230-235 °C(lit.) | | Boiling point | 463.44°C (rough estimate) | | density | 1.0946 (rough estimate) | | vapor density | 12.9 (vs air) | | refractive index | 1.4875 (estimate) | | storage temp. | Store at +5°C to +30°C. | | solubility | Solubility Insoluble in water; soluble in ethanol, methanol | | form | Liquid | | pka | 8.95(at 25℃) | | color | Pale Red-Brown | | PH Range | Green (0.0) to yellow (0.8);Yellow (8.2) to green-blue (11.0) | | Odor | Odorless | | Water Solubility | insoluble | | λmax | 210nm | | BRN | 3471575 | | Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. | | InChIKey | VDDWRTZCUJCDJM-SOYKGTTHSA-N | | CAS DataBase Reference | 145-50-6(CAS DataBase Reference) | | EPA Substance Registry System | 1(4H)-Naphthalenone, 4-[(4-hydroxy-1-naphthalenyl)phenylmethylene]- (145-50-6) |
| p-Naphtholbenzein Usage And Synthesis |
| Chemical Properties | deep red to rust-coloured crystals | | Uses | alpha-Naphtholbenzein is a pH indicator (pH 0.0-0.8/ pH 8.2-10.0). Dyes and metabolites. |
| p-Naphtholbenzein Preparation Products And Raw materials |
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