27130

Chromotrop 2B

for microscopy

• Synonym(e): 4-Nitro-benzolazo-2′-chromotropsäure Dinatriumsalz, Säurerot 176
• Empirische Formel (Hill-System): C₁₆H₉N₃Na₂O₁₀S₂
• CAS-Nummer: 548-80-1
• Molekulargewicht: 513.37
• Farbindexnummer: 16575
• Beilstein: 4109733
• EG-Nummer: 208-959-9
• MDL-Nummer: MFCD00003951
• UNSPSC-Code: 12171500
• PubChem Substanz-ID: 329752979
• NACRES: MA.02

Eigenschaften

• Qualität: for microscopy
• Qualitätsniveau: 100
• Form: powder or crystals
• mp (Schmelzpunkt): 300 °C
• Löslichkeit: water: 10 mg/mL
• ε (Extinktionskoeffizient): ≥500 at 509-519 nm in water
• Anwendung(en): diagnostic assay manufacturing; hematology; histology
• Lagertemp.: room temp
• SMILES String: [Na+].[Na+].Oc1cc(cc2cc(c(\N=N\c3ccc(cc3)[N+]([O-])=O)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O
• InChI: 1S/C16H11N3O10S2.2Na/c20-12-7-11(30(24,25)26)5-8-6-13(31(27,28)29)15(16(21)14(8)12)18-17-9-1-3-10(4-2-9)19(22)23;;/h1-7,20-21H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b18-17+;;
• InChIKey: AXUUHWJXDWBCSG-QIKYXUGXSA-L

Beschreibung

Anwendung

Chromotrope 2B along with Chromotrope 2R, was used to give a highly colored radical anion, during the spectrophotometric determination of cephalosporins (cephadroxil (I), cephalexin (II) and cephradine (III)) in pharmaceutical products. It may be immobilized on AG 1-X8 ion exchange resin, used in flame atomic absorption spectrometry and inductively coupled plasma mass spectrometry (ICP-MS), done for the on-line preconcentration and determination of aluminium.

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: dust mask type N95 (US), Eyeshields, Gloves