8.51082

5(6)-Carboxyfluorescein

Novabiochem^®

• Synonym(s): 5(6)-Carboxyfluorescein
• Empirical Formula (Hill Notation): C₂₁H₁₂O₇
• CAS Number: 72088-94-9
• Molecular Weight: 376.32
• UNSPSC Code: 12352005
• EC Index Number: 276-331-1
• NACRES: NA.22
• MDL number: MFCD00151081

Properties

• Quality Segment: 200
• product line: Novabiochem^®
• form: powder
• reaction suitability: reagent type: fluorescent-labelling reagent
• manufacturer/tradename: Novabiochem^®
• application(s): peptide synthesis
• storage temp.: 2-8°C
• SMILES string: O6C8(c9c(cc(cc9)O)Oc%10c8ccc(c%10)O)c7c(ccc(c7)C(=O)O)C6=O.O1C3(c4c(cc(cc4)O)Oc5c3ccc(c5)O)c2c(cc(cc2)C(=O)O)C1=O
• InChI: 1S/2C21H12O7/c22-11-2-5-15-17(8-11)27-18-9-12(23)3-6-16(18)21(15)14-4-1-10(19(24)25)7-13(14)20(26)28-21;22-11-2-5-14-17(8-11)27-18-9-12(23)3-6-15(18)21(14)16-7-10(19(24)25)1-4-13(16)20(26)28-21/h2*1-9,22-23H,(H,24,25)
• InChI key: BPVHBBXCESDRKW-UHFFFAOYSA-N

Description

General description

Novabiochem^®′s 5(6)-carboxyfluorescein (FAM; λ_em494 nm; λ_ex518 nm) is a useful tool for preparing fluorescently-labeled peptides. It is supplied as a mixture of 5-and 6-isomers, making it cost effective for those applications which do not require a single isomer dye.

Associated Protocols and Technical Articles
Chromogenic Labeling of Synthetic Peptides

Application

5(6)-Carboxyfluorescein Novabiochem^®. CAS 72088-94-9, molar mass 376.32 g/mol.

Analysis Note

Colour (visual): yellow to orange
Appearance of substance (visual): powder
Identity (IR): passes test
Purity (TLC (EtOAc/MeOH/H2O/DIPEA 60 : 30 : 10 : 3)): ≥ 97 %
Assay isomers (HPLC, area%): ≥ 96.0 % (a/a)

To see the solvent systems used for TLC of Novabiochem^® products please click here.

Other Notes

Replaces: 01-63-0149

Legal Information

Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable