Support

Quick links
Frequently asked questions - categories
Ask a question
Contact Us
+1

Chloride, pH, Zinc & Other Indicators

A wide selection of ion indicators are available in both the membrane-impermeant salt forms and the membrane-permeant AM ester forms. Biotium also supplies Pluronic F-127, a mild non-ionic detergent that can facilitate cell loading of AM ester compounds.

Please see our Fluorescent Ion Indicator brochure to select the dye that is right for your experimental needs.

Showing 1–16 of 26 results

    5-(and 6)-Carboxy-2′,7′- dichlorofluorescein diacetate

    From: $104 Sizes: 100 mgCatalog #: 51016

    5-(and-6)-Carboxy-2′,7′-dichlorofluorescein diacetate is membrane-permeant and thus can be loaded into cells via incubation. The diacetate is readily hydrolyzed to 5-(and-6)-carboxy-2′,7′-dichlorofluorescein (51015) by intracellular esterases.

    Size
    Catalog #
    price
    Qty
    100 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    5-(and-6)-Carboxy-2′,7′-dichlorofluorescein diacetate is membrane-permeant and thus can be loaded into cells via incubation. The diacetate is readily hydrolyzed to 5-(and-6)-carboxy-2′,7′-dichlorofluorescein (51015) by intracellular esterases.

     

    5-(and 6)-CFDA

    From: $74 Sizes: 100 mgCatalog #: 51014

    5(6)-CFDA (full name: 5-(and-6)-Carboxyfluorescein diacetate) is membrane-permeant and thus can be loaded into cells via incubation. Once inside cells, CFDA is hydrolyzed by intracellular esterases to carboxyfluorescein (see #51013 ).

    Size
    Catalog #
    price
    Qty
    100 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    5(6)-CFDA (full name: 5-(and-6)-Carboxyfluorescein diacetate) is membrane-permeant and thus can be loaded into cells via incubation. Once inside cells, CFDA is hydrolyzed by intracellular esterases to carboxyfluorescein (see #51013 ).

     

    5-(and-6)-Carboxy-2′,7′- dichlorofluorescein

    From: $95 Sizes: 200 mgCatalog #: 51015

    5-(and-6)-carboxy-2′,7′-dichlorofluorescein is similar to carboxyfluorescein (51013), but has lower pKa. It is useful for detecting pH in more acidic environment.

    Size
    Catalog #
    price
    Qty
    200 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    5-(and-6)-carboxy-2′,7′-dichlorofluorescein is similar to carboxyfluorescein (51013), but has lower pKa. It is useful for detecting pH in more acidic environment.

     

    5-(and-6)-Carboxyfluorescein

    From: $46 Sizes: 100 mgCatalog #: 51013

    5-(and-6)-FAM (full name: 5-(and-6)-Carboxyfluorescein mixed isomer) has a pKa of 6.5 and can be used as a pH indicator.

    Size
    Catalog #
    price
    Qty
    100 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    5-(and-6)-FAM (full name: 5-(and-6)-Carboxyfluorescein mixed isomer) has a pKa of 6.5 and can be used as a pH indicator.

     

    5-Carboxy-2′,7′-dichlorofluorescein (single isomer)

    From: $95 Sizes: 100 mgCatalog #: 51017

    This dye can be used as a low pH indicator similar to 51015, and is also useful as a general green fluorescent label.

    Size
    Catalog #
    price
    Qty
    100 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    This dye can be used as a low pH indicator similar to 51015, and is also useful as a general green fluorescent label.

     

    5-carboxy-2′,7′-dichlorosulfonefluorescein

    From: $139 Sizes: 10 mgCatalog #: 51023

    The pKa of 5-carboxy-2′,7′-dichlorosulfonefluorescein is near 4 and thus the dye is potentially an excellent pH indicator for acidic organelles.

    Size
    Catalog #
    price
    Qty
    10 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    The pKa of 5-carboxy-2′,7′-dichlorosulfonefluorescein is near 4 and thus the dye is potentially an excellent pH indicator for acidic organelles.

     

    5-CFDA (5-Carboxyfluorescein diacetate, single isomer)

    From: $100 Sizes: 100 mgCatalog #: 51018

    5-CFDA is membrane-permeant and thus can be loaded into cells via incubation. Once inside cells, 5-CFDA is hydrolyzed by intracellular esterases to 5-carboxyfluorescein (see 50015).

    Size
    Catalog #
    price
    Qty
    100 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    5-CFDA is membrane-permeant and thus can be loaded into cells via incubation. Once inside cells, 5-CFDA is hydrolyzed by intracellular esterases to 5-carboxyfluorescein (see 50015).

     

    6-CFDA

    From: $116 Sizes: 100 mgCatalog #: 51021

    6-CFDA is membrane-permeant and thus can be loaded into cells via incubation. Once inside cells, 6-CFDA is hydrolyzed by intracellular esterases to 6-carboxyfluorescein.

    Size
    Catalog #
    price
    Qty
    100 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    6-CFDA is membrane-permeant and thus can be loaded into cells via incubation. Once inside cells, 6-CFDA is hydrolyzed by intracellular esterases to 6-carboxyfluorescein.

     

    BCECF, AM Ester

    From: $74 Sizes: 20 x 50 ug, 10 x 100 ug, 1 mgCatalog #: 51011, 51012, - 51011-1View allHide

    BCECF, AM ester is membrane-permeant and thus can be loaded into cells via incubation. This product is a mixture of three molecular species, all of which are readily hydrolyzed by endogenous esterases into a single BCECF free acid form once they are in the cells.

    Size
    Catalog #
    price
    Qty
    20 x 50 ug
    10 x 100 ug
    1 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    BCECF, AM ester is membrane-permeant and thus can be loaded into cells via incubation. This product is a mixture of three molecular species, all of which are readily hydrolyzed by endogenous esterases into a single BCECF free acid form once they are in the cells.

     

    BCECF, AM Ester, 1 mg/mL in Anhydrous DMSO

    From: $89 Sizes: 1 mLCatalog #: 51009

    BCECF, AM ester is membrane-permeant and thus can be loaded into cells via incubation. This product is a mixture of three molecular species, all of which are readily hydrolyzed by endogenous esterases into a single BCECF free acid form once they are in the cells.

    Size
    Catalog #
    price
    Qty
    1 mL
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    BCECF, AM ester is membrane-permeant and thus can be loaded into cells via incubation. This product is a mixture of three molecular species, all of which are readily hydrolyzed by endogenous esterases into a single BCECF free acid form once they are in the cells.

     

    BCECF, Free Acid

    From: $66 Sizes: 1 mgCatalog #: 51010

    BCECF (2′,7′ –bis-(Carboxyethyl)-5-(and-6)-carboxyfluorescein) is the most widely used fluorescent pH sensor. Because its pKa (6.97) is close to physiological pH, BCECF can detect cytosolic pH change with high sensitivity.

    Size
    Catalog #
    price
    Qty
    1 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    BCECF (2′,7′ –bis-(Carboxyethyl)-5-(and-6)-carboxyfluorescein) is the most widely used fluorescent pH sensor. Because its pKa (6.97) is close to physiological pH, BCECF can detect cytosolic pH change with high sensitivity.

     

    Carboxy-2′,7′- dichlorofluorescein diacetate, succinimidyl ester, 5 and 6 isomers

    From: $139 Sizes: 25 mgCatalog #: 90040

    5-(and-6)-Carboxy-2′,7′-dichlorofluorescein diacetate, succinimidyl ester is a useful fluorescent tracer that can passively diffuse into cells and covalently label intracellular proteins, resulting in long-term cell labeling. The reagent itself is colorless and nonfluorescent but becomes brightly green fluorescent once it is hydrolyzed by intracellular esterases.

    Size
    Catalog #
    price
    Qty
    25 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    5-(and-6)-Carboxy-2′,7′-dichlorofluorescein diacetate, succinimidyl ester is a useful fluorescent tracer that can passively diffuse into cells and covalently label intracellular proteins, resulting in long-term cell labeling. The reagent itself is colorless and nonfluorescent but becomes brightly green fluorescent once it is hydrolyzed by intracellular esterases.

     

    CFDA SE, 5 and 6-isomers

    From: $139 Sizes: 25 mgCatalog #: 90041

    5(6)-CFDA, SE (full name: 5-(and-6)-Carboxyfluorescein diacetate, succinimidyl ester, also known as CFSE) is a useful fluorescent tracer that can passively diffuse into cells and covalently label intracellular proteins, resulting in long-term cell labeling. The reagent itself is colorless and non-fluorescent but becomes brightly green fluorescent once it is hydrolyzed by intracellular esterases.

    Size
    Catalog #
    price
    Qty
    25 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    5(6)-CFDA, SE (full name: 5-(and-6)-Carboxyfluorescein diacetate, succinimidyl ester, also known as CFSE) is a useful fluorescent tracer that can passively diffuse into cells and covalently label intracellular proteins, resulting in long-term cell labeling. The reagent itself is colorless and non-fluorescent but becomes brightly green fluorescent once it is hydrolyzed by intracellular esterases.

     

    Flubi-2

    From: $162 Sizes: 5 mgCatalog #: 51024

    Flubi-2 is the hydrolyzed product of the site-directed fluorogenic probe Flubida-2 (#51022) and can be used as a standard for calibration.

    Size
    Catalog #
    price
    Qty
    5 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    Flubi-2 is the hydrolyzed product of the site-directed fluorogenic probe Flubida-2 (#51022) and can be used as a standard for calibration.

     

    Flubida-2

    From: $196 Sizes: 5 mgCatalog #: 51022

    Flubida-2 has been used to detect pH at a specific site in a cell such as cell organelles by directing the probe to where avidin fusion proteins are located. The probe is a conjugate of biotin and fluorescein diacetate, which is nonfluorescent until the probe has entered the cells and hydrolyzed by endoesterases.

    Size
    Catalog #
    price
    Qty
    5 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    Flubida-2 has been used to detect pH at a specific site in a cell such as cell organelles by directing the probe to where avidin fusion proteins are located. The probe is a conjugate of biotin and fluorescein diacetate, which is nonfluorescent until the probe has entered the cells and hydrolyzed by endoesterases.

     

    Furaptra (Mag-Fura-2), AM Ester

    From: $179 Sizes: 20 x 50 ug, 10 x 100 ug, 1 mgCatalog #: 50037, 50038, - 50039View allHide

    Furaptra, AM ester is a membrane-permeant form of Furaptra (Mag-Fura-2). The indicator is loaded into cells via simple incubation.

    Size
    Catalog #
    price
    Qty
    20 x 50 ug
    10 x 100 ug
    1 mg
    Clear selection
    Add to wishlist
    ADD TO CART
    (Please select quantity above )

    Furaptra, AM ester is a membrane-permeant form of Furaptra (Mag-Fura-2). The indicator is loaded into cells via simple incubation.