201618

Sudan Red 7B

• Synonym(s): Fat Red 7B, Fat red bluish, Solvent Red 19
• Empirical Formula (Hill Notation): C₂₄H₂₁N₅
• CAS Number: 6368-72-5
• Molecular Weight: 379.46
• Colour Index Number: 26050
• Beilstein/REAXYS Number: 3534323
• EC Number: 228-862-5
• MDL number: MFCD00003904
• UNSPSC Code: 12171500
• PubChem Substance ID: 24852014
• NACRES: NA.47

Properties

• form: powder
• mp: 130 °C (dec.) (lit.)
• solubility: acetone: 10 mg/mL
• λmax: 364 nm (2nd); 533 nm
• ε (extinction coefficient): ≥14230 at 367-377 nm in toluene; ≥24660 at 528-538 nm in toluene
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: CCNc1ccc2ccccc2c1\N=N\c3ccc(cc3)\N=N\c4ccccc4
• InChI: 1S/C24H21N5/c1-2-25-23-17-12-18-8-6-7-11-22(18)24(23)29-28-21-15-13-20(14-16-21)27-26-19-9-4-3-5-10-19/h3-17,25H,2H2,1H3/b27-26+,29-28+
• InChI key: VKWNTWQXVLKCSG-ZDXBJJIESA-N

Description

Application

Sudan Red 7B has been used to stain the fat bodies of Ostrinia nubilalis (Hübner) larvae.

Biochem/physiol Actions

Sudan red 7B, also known as fat red, is a non-fluorescent stain. It is effectively used to stain lipids and is used to indicate the presence of suberin in cell walls. Sudan red 7B acts as a marker for formosan subterranean termite, Coptotermes fornosanus Shiraki.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves