Other grades of this product :
| HYDROXYNAPHTHOL BLUE Basic information |
| Product Name: | HYDROXYNAPHTHOL BLUE | | Synonyms: | 7-naphthalenedisulfonicacid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-trisodiumsalt;HYDROXYNAPHTHOL BLUE;HYDROXYNAPHTHOL BLUE INDICATOR;HYDROXYNAPHTHOL BLUE TRISODIUM SALT;CALVER(R) 2 CALCIUM INDICATOR;3-HYDROXY-4-(2-HYDROXY-4-SULFO-1-NAPHTHYLAZO)NAPHTHALENE-2,7-DISULFONIC ACID TRISODIUM SALT;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 | | CAS: | 63451-35-4 | | MF: | C20H15N2NaO11S3 | | MW: | 578.51 | | EINECS: | 264-197-7 | | Product Categories: | Organics | | Mol File: | 63451-35-4.mol |
| HYDROXYNAPHTHOL BLUE Chemical Properties |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-36 | | WGK Germany | WGK 3 highly water endangering | | HS Code | 2927 00 00 |
| HYDROXYNAPHTHOL BLUE Usage And Synthesis |
| 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 - |
| HYDROXYNAPHTHOL BLUE Preparation Products And Raw materials |
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