C.I. Acid Red 97

C.I. Acid Red 97 structural formula

CAS Number10169-02-5
Molecular FormulaC32H20N4Na2O8S2
Molecular Weight698.631
  • C.I. Acid Red 97
  • Disodium 4,4'-bis(E)[(2-hydroxynaphthalen-1-yl)diazenyl][1,1'-biphenyl]-2,2'-disulfonate
  • [1,1'-Biphenyl]-2,2'-disulfonic acid, 4,4'-bis[(E)-2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:2)
  • 10169-02-5
  • Acid Anthracene Red GA-CF
  • Acid Red 97
  • Airedale Scarlet GM
  • Alizarine Chrome Red G
  • Altochrome Scarlet G
  • Amacid Milling Scarlet G
  • Anthra Red G
  • Azo Milling Red G
  • Belacid Milling Red G
  • Benzyl Red GS
  • Benzyl Red MG
  • Calcocid Milling Red G
  • Coomassie Milling Scarlet G
  • Coomassie Milling Scarlet GP
  • Coriacid Scarlet R
  • Crispin Red GM
  • Cyanine Fast Scarlet G
  • EINECS 233-439-3
  • Fenazo Red FG
  • Hexaderm Red MRG
  • Korostan Red G
  • Milling Red A
  • Milling Scarlet R
  • Milling Scarlet 2G
  • Milling Scarlet DH
  • Naphthalene Leather Scarlet G
  • Optanol Scarlet GS
  • Pharmaglo Red G
  • Polycor Red GS
  • Shikiso Acid Anthracene Red G
  • Suminol Brilliant Scarlet DH
  • Sumitomo Fast Scarlet G
  • Supranol Scarlet GS
  • Tertracid Milling Red AGE
  • Vondamol Brilliant Red G
  • Xylene Milling Red G
  • C.I. Acid Red 97, disodium salt


Separation of C.I. Acid Red 97 on Newcrom R1 HPLC column

February 16, 2018
Separation of C.I. Acid Red 97 on Newcrom C18 HPLC column

C.I. Acid Red 97 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. Acid Red 97
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.