Carboxylic acids

AF 343 (Coumarin)-X-carboxylic acid

AF 343 (Coumarin) carboxylic acid. Extended aminohexanoyl linker increases solubility and provides spatial separation between the fluorophore, and the functional group.
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Cat. # Quantity Price Lead time
12690 1 mg $105 in stock
22690 5 mg $165 in stock
42690 25 mg $285 in stock
52690 50 mg $495 in stock
62690 100 mg $880 in stock
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AF 430 carboxylic acid

Non-reactive form of AF 430 fluorescent dye to be used as a reference standard.
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Cat. # Quantity Price Lead time
10890 1 mg $110 in stock
20890 5 mg $165 in stock
40890 25 mg $380 in stock
50890 50 mg $695 in stock
60890 100 mg $1190 in stock
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AF 488 carboxylic acid

AF 488 carboxyl derivative can be used as a reference standard or for synthesizing various AF488 esters.
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Cat. # Quantity Price Lead time
11890 1 mg $125 in stock
21890 5 mg $325 in stock
41890 25 mg $950 in stock
51890 50 mg $1625 in stock
61890 100 mg $2090 in stock
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AF 532 carboxylic acid

Non-reactive form of AF 532 fluorescent dye with a free carboxyl group.
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Cat. # Quantity Price Lead time
1C890 1 mg $110 in stock
2C890 5 mg $165 in stock
4C890 25 mg $380 in stock
5C890 50 mg $695 in stock
6C890 100 mg $1190 in stock
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AF 555 carboxylic acid

Non-reactive form of AF 555 fluorescent dye with a free carboxyl group.
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Cat. # Quantity Price Lead time
1K890 1 mg $125 in stock
2K890 5 mg $325 in stock
4K890 25 mg $950 in stock
5K890 50 mg $1625 in stock
6K890 100 mg $2090 in stock
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AF 568 carboxylic acid

Non-reactive form of AF 568 fluorescent dye with a free carboxyl group.
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Cat. # Quantity Price Lead time
15890 1 mg $125 in stock
25890 5 mg $325 in stock
45890 25 mg $950 in stock
55890 50 mg $1625 in stock
65890 100 mg $2090 in stock
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AF 594 carboxylic acid

Non-reactive form of AF 594 fluorescent dye with a free carboxyl group.
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Cat. # Quantity Price Lead time
14890 1 mg $125 in stock
24890 5 mg $325 in stock
44890 25 mg $950 in stock
54890 50 mg $1625 in stock
64890 100 mg $2090 in stock
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AF 647 carboxylic acid

AF 647 carboxylic acid is a water-soluble dye that can be used as a reference standard for dye conjugates and the synthesis of AF647-containing biomolecules.
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Cat. # Quantity Price Lead time
16890 1 mg $140 in stock
26890 5 mg $420 in stock
46890 25 mg $1365 in stock
56890 50 mg $1790 in stock
66890 100 mg $2640 in stock
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AMCA carboxylic acid

Non-reactive form of AMCA fluorescent dye with a free carboxyl group. AMCA is one of the brightest blue fluorescent dyes with large Stoke's shift and high resistance to photobleaching.
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Cat. # Quantity Price Lead time
3357-25mg 25 mg $45 in stock
3357-100mg 100 mg $95 in stock
3357-1g 1 g $490 in stock
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ATT 550 carboxylic acid

Derivative of АТТ 550 fluorophore with non-activated free carboxylic acid group.
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Cat. # Quantity Price Lead time
1C990 1 mg $125 in stock
2C990 5 mg $325 in stock
4C990 25 mg $850 in stock
5C990 50 mg $1490 in stock
6C990 100 mg $1990 in stock
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ATT 594 carboxylic acid

Derivative of water-soluble red-fluorescent dye АТТ 594 with non-activated free carboxylic acid group.
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Cat. # Quantity Price Lead time
1B990 1 mg $134 12 days
2B990 5 mg $380 12 days
4B990 25 mg $1365 12 days
5B990 50 mg $1790 12 days
6B990 100 mg $2640 12 days
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BDP® 558/568 carboxylic acid

BDP 558/568 is a borondipyrromethene dye with yellow emission. The dye as a carboxylic acid can be used in peptide synthesis (after appropriate activation of the carboxylic group).
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Cat. # Quantity Price Lead time
17490 1 mg $125 in stock
27490 5 mg $260 in stock
47490 25 mg $510 in stock
57490 50 mg $895 in stock
67490 100 mg $1490 in stock
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BDP® 564/570 carboxylic acid

A derivative of BDP 564/570 fluorophore with a free carboxylic acid functional group. The dye has an emission in the orange part of the spectrum.
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Cat. # Quantity Price Lead time
1H490 1 mg $110 in stock
2H490 5 mg $260 in stock
4H490 25 mg $510 in stock
5H490 50 mg $895 in stock
6H490 100 mg $1490 in stock
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BDP® 576/589 carboxylic acid

Derivative of BDP 576/589 fluorophore with non-activated free carboxylic acid group.
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Cat. # Quantity Price Lead time
1G490 1 mg $125 in stock
2G490 5 mg $260 in stock
4G490 25 mg $510 in stock
5G490 50 mg $895 in stock
6G490 100 mg $1490 in stock
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BDP® 581/591 carboxylic acid

BDP 581/591 is a multi purpose fluorophore, that can also be used to probe reactive oxygen species (ROS). This is a carboxylic acid derivative with a free COOH group.
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Cat. # Quantity Price Lead time
16490 1 mg $125 in stock
26490 5 mg $260 in stock
46490 25 mg $510 in stock
56490 50 mg $895 in stock
66490 100 mg $1490 in stock
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BDP® 630/650 carboxylic acid

BDP 630/650 is a bright fluorophore for far red part of the spectrum. This dye is perfect for microscopy and fluorescence polarization assays. This is a carboxylic acid that can be activated for the coupling, or used as a control.
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Cat. # Quantity Price Lead time
15490 1 mg $125 in stock
25490 5 mg $260 in stock
45490 25 mg $510 in stock
55490 50 mg $895 in stock
65490 100 mg $1490 in stock
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BDP® FL carboxylic acid

Borondipyrromethene dye for fluorescein (FAM) channel, free unactivated carboxylic acid useful as a negative control, and for the calibration.
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Cat. # Quantity Price Lead time
11490 1 mg $125 in stock
21490 5 mg $260 in stock
41490 25 mg $510 in stock
51490 50 mg $895 in stock
61490 100 mg $1490 in stock
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BDP® R6G carboxylic acid

Free carboxylic acid derivative of BDP R6G - a borondipyrromethene dye with absorption and emission spectra resembling R6G rhodamine.
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Cat. # Quantity Price Lead time
14490 1 mg $125 in stock
24490 5 mg $260 in stock
44490 25 mg $510 in stock
54490 50 mg $895 in stock
64490 100 mg $1490 in stock
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BDP® TMR carboxylic acid

Borondipyrromethene dye for TMR channel with a non-activated carboxylic acid group.
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Cat. # Quantity Price Lead time
12490 1 mg $125 in stock
22490 5 mg $260 in stock
42490 25 mg $510 in stock
52490 50 mg $895 in stock
62490 100 mg $1490 in stock
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BDP® TR carboxylic acid

BDP TR is a borondipyrromethene dye for ROX channel. This is a carboxy derivative bearing free COOH group for the conjugation with alcohols by Steglich esterification, or for the use in non-conjugated form.
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Cat. # Quantity Price Lead time
13490 1 mg $125 in stock
23490 5 mg $260 in stock
43490 25 mg $510 in stock
53490 50 mg $895 in stock
63490 100 mg $1490 in stock
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Calibro® Fluor 610 carboxylic acid

Carboxyl derivative of Calibro® Fluor 610, a red-emitting fluorescent dye specifically designed for qPCR applications. It can be used as a reference standard or for synthesizing various Calibro® Fluor 610 esters.
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Cat. # Quantity Price Lead time
24C90 5 mg $159 in stock
44C90 25 mg $679 in stock
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Cyanine3.5 carboxylic acid

Unactivated monofunctional Cy3.5 carboxylic acid. Can be used as a reference non-reactive dye or control.
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Cat. # Quantity Price Lead time
12090 1 mg $110 in stock
22090 5 mg $210 in stock
42090 25 mg $410 in stock
52090 50 mg $695 in stock
62090 100 mg $1190 in stock
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Cyanine3B carboxylic acid

A Cyanine3B derivative with unactivated free carboxy group for use as a control, calibration, and conjugation after pre-activation.
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Cat. # Quantity Price Lead time
2321-1mg 1 mg $125 in stock
2321-5mg 5 mg $325 in stock
2321-25mg 25 mg $850 in stock
2321-50mg 50 mg $1490 in stock
2321-100mg 100 mg $2450 in stock
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Cyanine3 carboxylic acid

The free carboxylic acid of Cyanine3 dye. Non-sulfonated dye, with good solubility in organic solvents, and limited aqueous solubility.
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Cat. # Quantity Price Lead time
11090 1 mg $110 in stock
21090 5 mg $210 in stock
41090 25 mg $410 in stock
51090 50 mg $695 in stock
61090 100 mg $1190 in stock
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Cyanine5.5 carboxylic acid

Cyanine5.5 dye, free acid form, unactivated. The dye can be considered non-reactive for most applications.
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Cat. # Quantity Price Lead time
17090 1 mg $125 in stock
27090 5 mg $260 in stock
47090 25 mg $510 in stock
57090 50 mg $895 in stock
67090 100 mg $1490 in stock
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Cyanine5 carboxylic acid

Cyanine5 carboxylic acid, unactivated dye. An analog of Cy5®; free carboxylic acid.
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Cat. # Quantity Price Lead time
13090 1 mg $110 in stock
23090 5 mg $210 in stock
43090 25 mg $410 in stock
53090 50 mg $695 in stock
63090 100 mg $1190 in stock
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Cyanine7.5 carboxylic acid

Cyanine7.5 carboxylic acid - unactivated NIR cyanine dye carboxylic acid.
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Cat. # Quantity Price Lead time
16090 1 mg $125 in stock
26090 5 mg $260 in stock
46090 25 mg $510 in stock
56090 50 mg $895 in stock
66090 100 mg $1490 in stock
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Cyanine7 carboxylic acid

The unactivated free carboxylic acid of near-infrared fluorescent dye Cyanine7.
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Cat. # Quantity Price Lead time
15090 1 mg $125 in stock
25090 5 mg $260 in stock
45090 25 mg $510 in stock
55090 50 mg $895 in stock
65090 100 mg $1490 in stock
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Cyanine7 dicarboxylic acid

Cyanine7 dicarboxylic acid is a bifunctional dye molecule possessing two carboxylic acid groups.
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Cat. # Quantity Price Lead time
1512-1mg 1 mg $125 in stock
1512-5mg 5 mg $260 in stock
1512-25mg 25 mg $510 in stock
1512-50mg 50 mg $895 in stock
1512-100mg 100 mg $1490 in stock
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DusQ 21 carboxylic acid

DusQ 21 is a non-fluorescent quencher molecule for far red and NIR range
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Cat. # Quantity Price Lead time
28D90 5 mg –   in stock
48D90 25 mg $290 in stock
68D90 100 mg $885 in stock
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HEX carboxylic acid, 6-isomer

Derivative of HEX fluorophore with non-activated free carboxylic acid group.
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Cat. # Quantity Price Lead time
2B290 5 mg $125 21 days
4B290 25 mg $225 21 days
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Pyrenebutyric acid

A derivative of pyrene containing a free carboxylic acid function. Pyrene is a polycyclic aromatic hydrocarbon (PAH) which exhibits excimer fluorescence and affinity to graphite.
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Cat. # Quantity Price Lead time
63590 100 mg $110 in stock
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ROX carboxylic acid, 6-isomer

Derivative of ROX (Rhodamine X, Rhodamine 101) fluorophore with non-activated free carboxylic acid group. This reagent is a pure 6-isomer.
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Cat. # Quantity Price Lead time
22290 5 mg $115 in stock
42290 25 mg $319 $239 in stock
62290 100 mg $512 in stock
82290 1 g $1850 in stock
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SIMA carboxylic acid, 6-isomer

Derivative of SIMA fluorophore with non-activated free carboxylic acid group.
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Cat. # Quantity Price Lead time
2E290 5 mg $125 21 days
4E290 25 mg $225 21 days
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sulfo-Cyanine3.5 carboxylic acid

Derivative of water-soluble sulfo-Cyanine3.5 dye containing a non-activated free carboxylic acid group.
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Cat. # Quantity Price Lead time
12390 1 mg $110 in stock
22390 5 mg $210 in stock
42390 25 mg $410 in stock
52390 50 mg $695 in stock
62390 100 mg $1190 in stock
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sulfo-Cyanine3 carboxylic acid

sulfo-Cyanine3 free unactivated monofunctional carboxylic acid, water-soluble dye.
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Cat. # Quantity Price Lead time
11390 1 mg $110 in stock
21390 5 mg $190 in stock
41390 25 mg $390 in stock
51390 50 mg $695 in stock
61390 100 mg $1190 in stock
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sulfo-Cyanine5.5 carboxylic acid

Water-soluble far-red fluorescent dye sulfo-Cyanine5.5 in the form of free non-activated carboxylic acid. The dye is useful for calibration and as a non-reactive control.
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Cat. # Quantity Price Lead time
17390 1 mg $125 in stock
27390 5 mg $325 in stock
47390 25 mg $850 in stock
57390 50 mg $1490 in stock
67390 100 mg $1990 in stock
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sulfo-Cyanine5 carboxylic acid

Water-soluble Cyanine5 carboxylic acid, non-activated fluorescent dye.
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Cat. # Quantity Price Lead time
13390 1 mg $115 in stock
23390 5 mg $240 in stock
43390 25 mg $510 in stock
53390 50 mg $895 in stock
63390 100 mg $1390 in stock
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sulfo-Cyanine7.5 carboxylic acid

Water-soluble, near-infrared fluorescent dye in the form of carboxylic acid. The dye has high hydrophilicity due to the presence of four sulfo groups.
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Cat. # Quantity Price Lead time
16390 1 mg $125 in stock
26390 5 mg $325 in stock
46390 25 mg $850 in stock
56390 50 mg $1490 in stock
66390 100 mg $1990 in stock
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sulfo-Cyanine7.5 dicarboxylic acid

sulfo-Cyanine7.5 dicarboxylic acid is a bifunctional cyanine dye with two carboxylic acid (COOH) groups. The molecule can be used to construct cross conjugates containing a near-infrared emitting fluorophore.
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Cat. # Quantity Price Lead time
1382-1mg 1 mg $125 in stock
1382-5mg 5 mg $325 in stock
1382-25mg 25 mg $850 in stock
1382-50mg 50 mg $1490 in stock
1382-100mg 100 mg $1990 in stock
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sulfo-Cyanine7 carboxylic acid

sulfo-Cyanine7 carboxylic acid is a non-reactive fluorescent dye that can be used as a NIR (near-infrared) marker.
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Cat. # Quantity Price Lead time
15390 1 mg $125 in stock
25390 5 mg $325 in stock
45390 25 mg $850 in stock
55390 50 mg $1490 in stock
65390 100 mg $1990 in stock
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sulfo-Cyanine7 dicarboxylic acid

sulfo-Cyanine7 dicarboxylic acid is a bifunctional dye with two carboxyl groups.
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Cat. # Quantity Price Lead time
1497-1mg 1 mg $125 in stock
1497-5mg 5 mg $325 in stock
1497-25mg 25 mg $850 in stock
1497-50mg 50 mg $1490 in stock
1497-100mg 100 mg $1990 in stock
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TAMRA carboxylic acid, 5-isomer

Non-reactive form of TAMRA fluorescent dye with a free carboxyl group. Pure 5-isomer.
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Cat. # Quantity Price Lead time
17190 1 mg –   in stock
27190 5 mg $110 in stock
47190 25 mg $125 in stock
57190 50 mg $185 in stock
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TET carboxylic acid, 6-isomer

Derivative of TET fluorophore with non-activated free carboxylic acid group.
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Cat. # Quantity Price Lead time
28290 5 mg $125 21 days
48290 25 mg $225 21 days
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TR-X-carboxylic acid, 5-isomer

Carboxyl derivative of TR, a red-emitting fluorescent dye. It can be used as a reference standard or for synthesizing various TR esters. The extended aminohexanoyl linker increases solubility and provides spatial separation between the fluorophore and the functional group.
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Cat. # Quantity Price Lead time
1V290 1 mg $110 in stock
3V290 10 mg $205 in stock
6V290 100 mg $1290 in stock
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VIC carboxylic acid, 6-isomer

Derivative of VIC fluorophore with non-activated free carboxylic acid group. VIC is an asymmetric xanthene dye with spectral properties similar to HEX and JOE, widely used for labeling PCR probes.
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Cat. # Quantity Price Lead time
2H290 5 mg $125 21 days
4H290 25 mg $225 21 days
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