FD&C Red No. 6

FD&C Red No. 6 structural formula

CAS Number5858-81-1
Molecular FormulaC18H12N2Na2O6S
Molecular Weight430.340
InChI KeyVPWFPZBFBFHIIL-UHFFFAOYSA-L
LogP1.85
Synonyms
  • FD&C Red No. 6
  • Disodium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]naphthalene-2-carboxylate
  • 2-Naphthalenecarboxylic acid, 3-hydroxy-4-[2-(4-methyl-2-sulfophenyl)diazenyl]-, sodium salt (1:2)
  • 5858-81-1
  • Disodium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]naphthalene-2-carboxylate
  • C.I. Pigment Red 57, disodium salt
  • C.I. 15850
  • 2-Naphthalenecarboxylic acid, 3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-, disodium salt
  • 2-Naphthalenecarboxylic acid, 3-hydroxy-4-[2-(4-methyl-2-sulfophenyl)diazenyl]-, sodium salt (1:2)
  • 3-hidroxi-4-[(4-metil-2-sulfonatofenil)azo]-2-naftoato de disodio
  • 3-Hydroxy-4-[(4-methyl-2-sulfonatophenyl)azo]-2-naphtoate de disodium
  • C.I. pigment red 057
  • C.I. Pigment Red 57
  • CI Pigment Red 57
  • D and C Red No. 6
  • D&C Red No. 6
  • Dinatrium-3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)azo]-2-naphthoat
  • disodium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate
  • FD and C Red No. 6
  • Fuji Carmine 6B
  • Irgalite Red 4B
  • Irgalite Rubine PB
  • Isol Bona Rubine BK
  • Isol Bona Rubine BKS
  • Isol Bona Rubine KBK
  • Isol Ruby BK
  • Isol Ruby BKS
  • Kromon Permanent Red 4B
  • Lithol Rubine B
  • Lithol Rubine BNA
  • Lithol Rubine Red Toner DK
  • NAPHTHALENE-2-CARBOXYLATE, 3-HYDROXY-4-[(4- METHYL-2-SULFOPHENYL)AZO]-, DISODIUM SALT
  • Permanent Red 4B
  • Permanent Red F 6R
  • Pigment Red 57
  • Pigment Rubine B
  • Pigment Rubine BCL
  • Plastol Rubine BC
  • Red No. 201
  • Resamine Rubine BC
  • Rubine Red RR 1253
  • Segnale Red 3R
  • Silotermo Carmine G
  • Siloton Rubine 2B
  • Siloton Rubine B
  • Vynamon Claret Y
  • D&c red no.6
  • EINECS 227-497-9
  • Japan Red 201
  • Cerven pigment 57
  • UNII-481744AI4O
  • 39473-11-5
  • 72432-82-7
  • 83711-69-7

Applications:

Separation of FD&C Red No. 6 on Newcrom R1 HPLC column

February 19, 2018
Separation of FD&C Red No. 6 on Newcrom C18 HPLC column

FD&C Red No. 6 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:
FD&C Red No. 6
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.