C.I. Basic Orange 21

C.I. Basic Orange 21 structural formula

CAS Number3056-93-7
Molecular FormulaC22H23ClN2
Molecular Weight350.891
InChI KeyZOMLUNRKXJYKPD-UHFFFAOYSA-N
LogP2.38
Synonyms
  • C.I. Basic Orange 21
  • 1,3,3-Trimethyl-2-[2-(2-methyl-1H-indol-3-yl)ethenyl]-3H-indol-1-ium chloride
  • 3H-Indolium, 1,3,3-trimethyl-2-[2-(2-methyl-1H-indol-3-yl)ethenyl]-, chloride (1:1)
  • 3056-93-7
  • C.I. 48035
  • Aizen Cathilon Orange GL
  • Aizen Cathilon Orange GLH
  • Astrazon Orange
  • Astrazon Orange G
  • Basic Orange 21
  • Cationic Orange ZH
  • EINECS 221-290-7
  • Genacryl Orange G
  • Nabor Orange G
  • Orange ZH
  • Sandocryl Orange B-G
  • Sevron Orange G
  • Sumiacryl Orange G
  • 1,3,3-Trimethyl-2-(2-(2-methyl-3-indolyl)vinyl)indolium chloride
  • 100407-19-0
  • 116365-07-2
  • 119431-87-7
  • 56508-98-6
  • 88289-17-2

Applications:

Separation of C.I. Basic Orange 21 on Newcrom R1 HPLC column

February 16, 2018
Separation of C.I. Basic Orange 21 on Newcrom C18 HPLC column

C.I. Basic Orange 21 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.

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Application Analytes:
C.I. Basic Orange 21
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 before ordering the column as there may be a more suitable column alternative by either e-mail: support@sielc.com or by phone: 847-229-2629.