D&C Red 28

D&C Red 28 structural formula

CAS Number18472-87-2
Molecular FormulaC20H4Br4Cl4Na2O5
Molecular Weight831.641
InChI KeyGFSNXSXKYPCYDQ-UHFFFAOYSA-L
LogP8.33
Synonyms
  • D&C Red 28
  • Disodium 2,3,4,5-tetrachloro-6-(2,4,5,7-tetrabromo-3-hydroxy-6-oxido-9H-xanthen-9-yl)benzoate
  • Benzoic acid, 2,3,4,5-tetrachloro-6-(2,4,5,7-tetrabromo-3,6-dihydroxy-9H-xanthen-9-yl)-, sodium salt (1:2)
  • 18472-87-2
  • Phloxine B
  • Fluorescein, 2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-, disodium salt
  • Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxy-, disodium salt
  • 3,4,5,6-Tetrachlor-2-(1,4,5,8-tetrabrom-6-hydroxy-3-oxoxanthen-9-yl)benzoesaure
  • 3,4,5,6-tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid
  • 3427 Veri Pur Pink
  • Acid Red 92
  • Acide 3,4,5,6-tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoeque
  • Acide 3,4,5,6-tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoique
  • acide 3,4,5,6-tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthene-9-yl)benzoique
  • acido 3,4,5,6-tetracloro-2-(1,4,5,8-tetrabromo-6-hidroxi-3-oxoxanteno-9-il)benzoico
  • Aizen Acid Phloxine PB
  • C.I. acid red 092
  • C.I. ACID RED 92
  • Cyanosin
  • Cyanosin B
  • Cyanosine
  • D and C Red No. 28
  • D&C Red 28-308267
  • D&C Red No. 28
  • D&C Red No. 28-15347
  • D&C Red No. 28-38015
  • Daiwa Red 104WB
  • Daiwa Red 45
  • Disodium 9-(3',4',5',6'-tetrachloro-o-carboxyphenyl)-6-hydroxy-6-hydroxy-2,4,5,7-tetrabromo-3-isoxanthone
  • DISODIUM=3,4,5,6-TETRACHLORO-2-(1,4,5,8-TETRA BROMO-6-HYDROXY-3-OXO XANTHEN-9-YL)BENZOATE
  • Eosin blue
  • Eosin bluish
  • Eosine blue
  • Eosine bluish
  • Food Red 104
  • Food Red No. 104
  • Orient Water Pink 2
  • Phloxin B
  • Phloxine B 38015
  • Phloxine P
  • Phyloxine B
  • Red No. 104
  • Red No.104-1
  • Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-3',6'-dihydroxy-, sodium salt (1:2)
  • Triacid Floxine 2G
  • Water Pink 2
  • EINECS 242-355-6
  • Food Dye Red No. 104
  • Japan Red 104
  • Japan Red 104-1
  • Red No. 104-1
  • 12777-84-3
  • 157367-38-9
  • 198831-99-1
  • 37361-25-4
  • 51374-31-3
  • 840499-87-8

Applications:

Separation of D&C Red 28 on Newcrom R1 HPLC column

February 16, 2018
Separation of D&C Red 28 on Newcrom C18 HPLC column

D&C Red 28 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:
D&C Red 28
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.