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

MedKoo CAT#: 555964

CAS#: 1481401-71-1

Description: FLTX1 is a fluorescent Tamoxifen derivative that can specifically label intracellular Tamoxifen-binding sites (estrogen receptors). FLTX1 allows the labeling of estrogen receptors in immunocytochemistry and immunohistochemistry studies, both under permeabilized and non-permeabilized conditions. FLTX1 showed the pharmacological activity of the tamoxifen moiety and efficient fluorescence properties, which could be used synergistically to improve the effect of the drug.

Chemical Structure

CAS# 1481401-71-1

Theoretical Analysis

MedKoo Cat#: 555964
Name: FLTX1
CAS#: 1481401-71-1
Chemical Formula: C31H28N4O4
Exact Mass: 520.2111
Molecular Weight: 520.589
Elemental Analysis: C, 71.52; H, 5.42; N, 10.76; O, 12.29

Price and Availability

Size Price Availability Quantity
50.0mg USD 450.0 2 Weeks
100.0mg USD 750.0 2 Weeks
200.0mg USD 1250.0 2 Weeks
500.0mg USD 2150.0 2 Weeks
1.0g USD 3250.0 2 Weeks
2.0g USD 5250.0 2 Weeks
5.0g USD 7950.0 2 Weeks
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Synonym: FLTX1; FLTX-1; FLTX 1;

IUPAC/Chemical Name: N-[2-[4-[(1Z)-1,2-Diphenyl-1-buten-1-yl]phenoxy]ethyl]-N-methyl-7-nitro-2,1,3-benzoxadiazol-4-amine


InChi Code: InChI=1S/C31H28N4O4/c1-3-26(22-10-6-4-7-11-22)29(23-12-8-5-9-13-23)24-14-16-25(17-15-24)38-21-20-34(2)27-18-19-28(35(36)37)31-30(27)32-39-33-31/h4-19H,3,20-21H2,1-2H3/b29-26-

SMILES Code: O=[N+](C1=CC=C(N(CCOC2=CC=C(/C(C3=CC=CC=C3)=C(C4=CC=CC=C4)/CC)C=C2)C)C5=NON=C51)[O-]

Appearance: Solid powder

Purity: >98% (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: To be determined

Shelf Life: >2 years if stored properly

Drug Formulation: To be determined

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

Preparing Stock Solutions

The following data is based on the product molecular weight 520.589 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

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50.0mg / USD 450.0

Additional Information

1: Lahoz F, Scholz LE, Boto A, Díaz M. FRET mechanism between a fluorescent breast-cancer drug and photodynamic therapy sensitizers. Spectrochim Acta A Mol Biomol Spectrosc. 2020 Oct 5;239:118498. doi: 10.1016/j.saa.2020.118498. Epub 2020 May 19. PMID: 32470814.

2: Morales A, Marín R, Marrero-Alonso J, Boto A, Díaz M. Colocalization of Estrogen Receptors with the Fluorescent Tamoxifen Derivative, FLTX1, Analyzed by Confocal Microscopy. Methods Mol Biol. 2016;1366:163-173. doi: 10.1007/978-1-4939-3127-9_13. PMID: 26585134.

3: Marrero-Alonso J, Morales A, García Marrero B, Boto A, Marín R, Cury D, Gómez T, Fernández-Pérez L, Lahoz F, Díaz M. Unique SERM-like properties of the novel fluorescent tamoxifen derivative FLTX1. Eur J Pharm Biopharm. 2013 Nov;85(3 Pt B):898-910. doi: 10.1016/j.ejpb.2013.04.024. Epub 2013 May 31. PMID: 23727370.