1-1000 Kilograms
$25.00
≥1001 Kilograms
$1.00
| alpha-Naphtholphthalein Basic information | |
| Product Name: | alpha-Naphtholphthalein |
| Synonyms: | 3,3-Bis(4-hydroxy-1-naphthyl)-1,3-dihydroisobenzofuran-1-one;3,3-Bis(4-hydroxynaphthalen-1-yl)-2-benzofuran-1-one;Di-p-a-Naphtholphthalide;3,3-Bis(4-hydroxy-1-naphtyl)isobenzofuran-1(3H)-one;3,3-Bis(4-hydroxy-1-naphtyl)phthalide;4,4'-[3(1H)-Oxoisobenzofuran-1,1-diyl]bis(1-naphthol);alpha-Naphtholphthalein,pure,indicator;Alpha-naphtholphthalein ,90% |
| CAS: | 596-01-0 |
| MF: | C28H18O4 |
| MW: | 418.44 |
| EINECS: | 209-875-5 |
| Product Categories: | Titration;Industrial/Fine Chemicals;pharmacetical;Analytical Chemistry;Indicator (pH);pH Indicators;N;Stains and Dyes;Stains&Dyes, A to;Indicators;pH Indicators - Solids;Phthalein |
| alpha-Naphtholphthalein Chemical Properties | |
| Melting point | 238-240 °C(lit.) |
| Boiling point | 496.21°C (rough estimate) |
| density | 1.1532 (rough estimate) |
| refractive index | 1.6400 (estimate) |
| storage temp. | Store below +30°C. |
| solubility | Solubility Practically insoluble in water; soluble in ethanol |
| form | Powder |
| pka | 8.0, 8.2, 8.5(at 25℃) |
| color | Pink to beige or brown |
| PH Range | 7.1(brownish)-8.3(blue/green) |
| PH | pH : 7.1~8.7 |
| Water Solubility | Soluble in ethanol. Insoluble in water. |
| λmax | 648nm |
| Merck | 146389 |
| BRN | 97816 |
| InChIKey | HQHBAGKIEAOSNM-UHFFFAOYSA-N |
| CAS DataBase Reference | 596-01-0(CAS DataBase Reference) |
alpha-Naphtholphthalein Spec.:
| Name | Bromophenol Red/5',5''-Dibromophenolsulfonphthalein |
| CAS NO. | 596-01-0 |
Molecular Formula | C28H18O4 |
| Molecular Weight | 418.45 |
| EINECS | 209-875-5 |
| Appearance | Brown Powder |
| Purity | 99% Min |
| M.P. | 238-240 ºC |
Company Information
QingdaoxigemaCHEMICAL Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.
The aim of xigema is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
xigema has become the "Top 500 Chinese manufacturing companies","Top 20 of global agrochemical sales". xigema has 21 subsidiaries and holding companies.
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