Fenaminosulf structural formula

CAS Number140-56-7
Molecular FormulaC8H10N3NaO3S
Molecular Weight251.241
  • Fenaminosulf
  • Sodium [4-(dimethylamino)phenyl]diazene-1-sulfonate
  • Diazenesulfonic acid, 2-[4-(dimethylamino)phenyl]-, sodium salt (1:1)
  • 140-56-7
  • Bayer 22555
  • Caswell No. 359B
  • Deksonal
  • Dexoxon
  • Diazoben
  • p-Dimethylaminobenzene diazo sodium sulfonate
  • p-Dimethylaminobenzenediazo sodium sulfonate
  • p-Dimethylaminobenzenediazosodium sulphonate
  • p-(Dimethylamino)benzenediazosulfonate
  • p-Dimethylaminobenzenediazosulfonic acid, sodium salt
  • 4-Dimethylaminobenzenediazosulfonic acid, sodium salt
  • p-(Dimethylamino)benzenediazosulphonate
  • p-(Dimethylamino)benzenediazosulphonic acid, sodium salt
  • 4-Dimethylaminobenzenediazosulphonic acid, sodium salt
  • 4-Dimethylaminophenyl diazene sulfonate, sodium salt
  • (4-(Dimethylamino)phenyl)diazenesulfonic acid, sodium salt
  • 4-((Dimethylamino)phenyl)diazenesulphonic acid, sodium salt
  • N,N-Dimethyl-p-anilinediazosulfonic acid sodium salt
  • EINECS 205-419-4
  • EPA Pesticide Chemical Code 034201
  • Gold Orange MP
  • NCI-C03010
  • Phenaminosulf
  • Sodium p-(dimethylamino)benzenediazosulfonate
  • Sodium 4-(dimethylamino)benzenediazosulfonate
  • Sodium p-(dimethylamino)benzenediazosulphonate
  • Sodium 4-(dimethylamino)benzenediazosulphonate
  • Sodium (4-(dimethylamino)phenyl)diazenesulfonate
  • Sodium fenaminosulf
  • p-(Dimethylamino)-phenyldiazo-natriumsulfonat
  • UNII-2VX11X81VX
  • para-Dimethylaminoazobenzenediazo sodium sulfonate


Separation of Fenaminosulf on Newcrom R1 HPLC column

February 16, 2018
Separation of Fenaminosulf on Newcrom C18 HPLC column

Fenaminosulf 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:
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.