MedKoo Cat#: 558785 | Name: FAM NHS ester, 6-isomer
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

This product contains the pure 6-isomer of fluorescein. Fluorescein (FAM) is a bright fluorophore that has found an extremely wide application in life science research. The fluorophore is hydrophilic and its derivatives possess good solubility in aqueous buffers.

Chemical Structure

FAM NHS ester, 6-isomer
FAM NHS ester, 6-isomer
CAS#92557-81-8

Theoretical Analysis

MedKoo Cat#: 558785

Name: FAM NHS ester, 6-isomer

CAS#: 92557-81-8

Chemical Formula: C25H15NO9

Exact Mass: 473.0747

Molecular Weight: 473.39

Elemental Analysis: C, 63.43; H, 3.19; N, 2.96; O, 30.42

Price and Availability

Size Price Availability Quantity
25mg USD 350.00 2 Weeks
50mg USD 650.00 2 Weeks
100mg USD 950.00 2 Weeks
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Related CAS #
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Synonym
Fluorescein NHS ester, 6-isomer; 6-Carboxyfluorescein N-succinimidyl ester; 6-Carboxyfluorescein N-hydroxysuccinimide ester; 6-FAM, SE; 6-Carboxyfluorescein succinimidyl ester
IUPAC/Chemical Name
(2,5-dioxopyrrolidin-1-yl) 3',6'-dihydroxy-1-oxospiro[2-benzofuran-3,9'-xanthene]-5-carboxylate
InChi Key
VDABVNMGKGUPEY-UHFFFAOYSA-N
InChi Code
InChI=1S/C25H15NO9/c27-13-2-5-16-19(10-13)33-20-11-14(28)3-6-17(20)25(16)18-9-12(1-4-15(18)24(32)34-25)23(31)35-26-21(29)7-8-22(26)30/h1-6,9-11,27-28H,7-8H2
SMILES Code
OC1=CC=C2C(OC(C=C(O)C=C3)=C3C24C5=CC(C(ON6C(CCC6=O)=O)=O)=CC=C5C(O4)=O)=C1
Appearance
Solid powder
Purity
>95% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO
Shelf Life
>3 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info

Preparing Stock Solutions

The following data is based on the product molecular weight 473.39 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
1. Evans, L.E.; Jones, K.; Cheeseman, M.D. Targeting secondary protein complexes in drug discovery: studying the druggability and chemical biology of the HSP70/BAG1 complex. Chemical Communications, 2017, 53(37), 5167–5170. doi: 10.1039/c7cc01376k 2. Warminski, M.; Sikorski, P.J.; Warminska, Z.; Lukaszewicz, M.; Kropiwnicka, A.; Zuberek, J.; Darzynkiewicz, E.; Kowalska, J.; Jemielity, J. Amino-functionalized 5' cap analogs as tools for site-specific sequence-independent labeling of messenger RNA. Bioconjugate Chemistry, 2017, 28(7), 1978–1992. doi: 10.1021/acs.bioconjchem.7b00291 3. Horning, D.P.; Joyce, G.F. Amplification of RNA by an RNA polymerase ribozyme. Proceedings of the National Academy of Sciences of the United States of America, 2016, 113(35), 9786–9791. doi: 10.1073/pnas.1610103113