Closed for Thanksgiving Holiday on Thursday & Friday, November 24 & 25, 2022

Product 6631

Back to Products

Catalog ID 6631 / 25 mg

SAMSA Fluorescein *Mixed isomers*

Formula Weight CAS#
C26H19NO9S 521.50

SAMSA fluorescein is a fluorescent probe that SH group is protected as acetyl protecting group and it can be deprotected with base to generate Thiol-containing fluorescein which then can be conjugated to protein and for assaying maleimide and iodoacetamide moieties on proteins.

Product Size 25 mg
Form orange
Absorption (estimated) Wavelength (λmax) 493 ± 3 nm (Buffer pH 10)
Fluorescence (estimated) Wavelength (λmax) 518 ± 4 nm (*Buffer pH 10)
Storage conditions Freeze: Store at -5 to -30°C (F) Protect from moisture (D) Protect from light (L)
MDL#

* 5-((2-(or-3)-S-(Acetylmercapto)succinoyl)amino)fluorescein
* 5-((2-(or-3)-S-(acetylmercapto)succinoyl)amino)fluorescein

Fluorescent Probes and Related Products:   Fluorescein, Naphthofluorescein and seminaphthofluorescein
Reactive Probes and Related Products:   Probes for detecting Haloacetamide and Maleimide, etc.

Safety Data Sheet
SDS PDF
Certificates of Analysis
Lot 50967 21-Sep-2016
Lot 50309 03-Feb-2015

Related Products

Catalog ID 7516 / 5 mg

DCF Alkyne *Click Chemistry*

  • Mol. Formula
    C24H13Cl2NO6
  • Mol. Weight
    482.27
  • 1-4 Units
    $ 157/Unit
  • 5-24 Units
    $ 145/Unit

Catalog ID 7991 / 10 X 50 ug

Fluo-5N, AM, Cell Permeant - Special Packaging

  • Mol. Formula
    C50H47F2N3O25
  • Mol. Weight
    1,127.92
  • 1-4 Units
    $ 242/Unit
  • 5-24 Units
    $ 229/Unit

Catalog ID 6981 / 5 mg

OxySens Green DCDHFDA, SE

  • Mol. Formula
    C28H19Cl2NO9
  • Mol. Weight
    584.36
  • 1-4 Units
    $ 113/Unit
  • 5-24 Units
    $ 105/Unit

Catalog ID 6963 / 10 mg

CNFDA,SE *Mixed Isomers* *Cell Permeant*

  • Mol. Formula
    C37H23NO11
  • Mol. Weight
    657.59
  • 1-4 Units
    $ 152/Unit
  • 5-24 Units
    $ 139/Unit