C.I.Acid Red 94

C.I.Acid Red 94 structural formula

CAS Number632-68-8
Molecular FormulaC20H2Cl4I4K2O5
Molecular Weight1049.850
InChI KeyVQHHOXOLUXRQFQ-UHFFFAOYSA-L
LogP7.77
Synonyms
  • C.I.Acid Red 94
  • Dipotassium 4,5,6,7-tetrachloro-2',4',5',7'-tetraiodo-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-3',6'-bis(olate)
  • Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo-, potassium salt (1:2)
  • 632-68-8
  • 4,5,6,7-Tetrachloro-2’.4’.5’,7’-tetraiodofluorescein dipotassium salt
  • Rose Bengal B
  • Food Red 105
  • EINECS 211-182-8
  • Food red dye 105
  • Acid Red 94
  • Food Red No. 105
  • Red No. 232
  • Simacid Rose Bengal
  • Tetrachlorotetraiodofluorescein dipotassium salt
  • Triacid Bengal Rose B
  • Aizen Food Red 105
  • Aizen Rose Bengal
  • Aizen Rose Bengal B
  • Bengal Pink B
  • Bengal Red B
  • Bengal Rose B
  • UNII-1ZPG1ELY14
  • 24545-87-7
  • 12777-85-4
  • 198831-90-2

Applications:

Separation of C.I.Acid Red 94 on Newcrom R1 HPLC column

February 16, 2018
Separation of C.I.Acid Red 94 on Newcrom C18 HPLC column

C.I.Acid Red 94 can be analyzed by this reverse phase (RP) HPLC method with simple conditions. The mobile phase contains an acetonitrile (MeCN), water, and phosphoric acid. For Mass-Spec (MS) compatible applications the phosphoric acid needs to be replaced with formic acid. Smaller 3 µm particles columns available for fast UPLC applications. This liquid chromatography method is scalable and can be used for isolation impurities in preparative separation. It also suitable for pharmacokinetics.

Application Column

Newcrom R1

The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.

Select options
Application Analytes:
C.I.Acid Red 94
The result was obtained by a proprietary SIELC algorithm. It may deviate from the actual experimental data. The experimental data are available upon request. Contact us by e-mail: support@sielc.com or by phone: 847-229-2629.