Functional construct

Add modifications for the method and application

Labels, quenchers, linkers, and other groups define oligonucleotide functionality. Review purpose, position, and compatibility before selection.

Review the parameter Choose in configurator Submit request
01

Choose the function

Start with the role the modification must perform in the experiment.

02

Check the position

Not every group is available at 5′, 3′, and internal positions.

03

Compare the price

The price depends on the selected modification and synthesis scale.

Functional groups

A modification should solve a specific experimental task

Position, incorporation route, purification, and sequence notation matter as much as the group name. The catalog below provides actual symbols and allowed positions.

5′ terminal position

Common for labels, phosphate, linkers, and protective groups.

3′ terminal position

May carry a label, quencher, extension blocker, or support-linked group.

Internal internal position

Usually requires a modified residue or linker.

≥95% fluorescent-product purity

At least 95% purity is stated for purified fluorescent constructs.

Major classes

Choose the function, then the exact symbol

Modification classes change optical, chemical, or biological properties.

Fluorophores

Provide detection and may be terminal or internal when supported by the chemistry.

Quenchers

Suppress fluorophore emission in probes; the working range must overlap dye emission.

Biotin

Supports high-affinity avidin or streptavidin binding for immobilization and detection.

Amino linkers

Provide a reactive group for post-synthetic conjugation.

Spacers

Create distance or replace an unspecified sequence region.

Phosphorothioate bonds

Increase nuclease resistance for protected constructs.

Fluorescent labels

Incorporation route affects position, yield, and background

A dye may be incorporated during synthesis, through modified CPG, or post-synthetically through an amino linker.

Dye phosphoramidite

Introduces the label during solid-phase synthesis at an allowed position.

Modified CPG

Used for selected 3′ terminal dyes.

Post-synthetic conjugation

An activated dye reacts with an amino linker and requires additional purification.

Internal label

Often requires a modified dT linker and a dedicated sequence symbol.

Purification and control

Modified products must be separated from free label and unreacted chain

Fluorescent constructs use multi-stage separation followed by optical and size confirmation.

First stage

Gel filtration removes free dye and salts.

Second stage

HPLC or PAGE removes unreacted oligonucleotide.

Spectrophotometry

The spectrum confirms dye and nucleotide contributions.

Capillary electrophoresis

May be used for selected fluorescein-labeled products.

Practical questions

Before choosing the parameters

Why can natural symbol and symbol differ?

The public name describes the chemistry, while the technical symbol encodes position and sequence notation.

Can one dye be placed anywhere?

No. Allowed 5′, 3′, and internal positions depend on the exact chemistry.

Why are internal modifications more complex?

They require a modified residue or linker and may add synthesis and purification steps.

Список модификаций

Выберите группу, найдите модификацию по символу или названию и сравните ориентировочную стоимость для доступных фасовок.

Как читать каталог модификаций

Модификация важна не только сама по себе, но и тем, где она может стоять в последовательности. Перед заказом проверьте расположение, спектральные параметры и совместимость с очисткой.

Probe selection
5′-конец39 вариантов

Чаще используется для флуорофоров, биотина, фосфатных и других терминальных меток.

3′-конец26 вариантов

Обычно подходит для гасителей, блокирующих групп и терминальных модификаций зонда.

Внутренняя позиция30 вариантов

Подходит для dT/dC-модификаций и конструкций, где метка должна быть внутри цепи.

Флуорофоры / гасители29 / 9

Для зондов сравнивайте λem красителя с диапазоном гашения, а не только названия.

Найдено модификаций: 38

применение: зонды

Reset filters
# Симв. код Name Расположение Экстинкция Молек. масса Price ?
Fluorophores
1 5ROX-HPROX
флуорофор
5-Carboxy-X-Rhodamine Hydroxypiperidine5ROX-HP
Пример 5′:5ROX-HP/ACGTACGT
5′ 21 697
от 98 ₽
2 5TAMRA-ProTAMRA
флуорофор
5-Carboxytetramethylrhodamine-Prolinol5TAMRA-Pro
Пример 5′:5TAMRA-Pro/ACGTACGT
5′ 32 592
от 196 ₽
3 6ROX-HPROX
флуорофор
6-Carboxy-X-Rhodamine Hydroxypiperidine6ROX-HP
Пример 5′:6ROX-HP/ACGTACGT
5′ 21 697
от 98 ₽
4 6Sy630-HPSy630
флуорофор
6-Carboxy-Rhodamine 630 Hydroxypiperidine6Sy630-HP
Пример 5′:6Sy630-HP/ACGTACGT
5′ 21 737
от 98 ₽
5 6TAMRA-HPTAMRA
флуорофор
6-Tetramethylaminocarboxyrhodamine Hydroxypiperidine6TAMRA-HP
Пример 5′:6TAMRA-HP/ACGTACGT
5′ 32 594
от 98 ₽
6 Cy3Cy3
флуорофор
IndocarbocyanineCy3
Пример 5′:Cy3/ACGTACGT
5′/3′ 4 841
от 196 ₽
7 Cy3 sulfoCy3
флуорофор
Cy3 sulfoCy3 sulfo
Пример 5′:Cy3 sulfo/ACGTACGT
5′ 1 038
от 196 ₽
8 Cy3.5Cy3.5
флуорофор
DibenzoindocarbocyanineCy3.5
Пример 5′:Cy3.5/ACGTACGT
5′/3′ 24 868
от 196 ₽
9 Cy5Cy5
флуорофор
IndodicarbocyanineCy5
Пример 5′:Cy5/ACGTACGT
5′/3′ 10 870
от 98 ₽
10 Cy5.5Cy5.5
флуорофор
DibenzoindodicarbocyanineCy5.5
Пример 5′:Cy5.5/ACGTACGT
5′/3′ 21 967
от 98 ₽
11 Cy7.5Cy7.5
флуорофор
Cy7.5Cy7.5
Пример 5′:Cy7.5/ACGTACGT
5′/3′ 964
от 196 ₽
12 dT-6FAM-C8N3FAM
флуорофор
Internal 6-FAM via Click Chemistry on a Long LinkerdT-6FAM-C8N3
Пример внутри:AC(dT-6FAM-C8N3)GTAC
T 30 971
от 481 ₽
13 FAMFAM
флуорофор
CarboxyfluoresceinFAM
Пример 5′:FAM/ACGTACGT
5′/3′ 21 537
от 98 ₽
14 HEXHEX
флуорофор
6-CarboxyhexachlorofluoresceinHEX
Пример 5′:HEX/ACGTACGT
5′ 31 908
от 330 ₽
15 JOEJOE
флуорофор
6-Carboxy-4',5'-dichloro-2',7'-dimethoxyfluoresceinJOE
Пример 5′:JOE/ACGTACGT
5′ 12 668
от 330 ₽
16 LC Red 610
флуорофор
LC Red 610LC Red 610
Пример 5′:LC Red 610/ACGTACGT
5′ 824
от 240 ₽
17 LC Red 640
флуорофор
LC Red 640LC Red 640
Пример 5′:LC Red 640/ACGTACGT
5′ 913
от 240 ₽
18 R6GR6G
флуорофор
Carboxyrhodamine 6GR6G
Пример 5′:R6G/ACGTACGT
5′/3′ 21 622
от 98 ₽
19 ROXROX
флуорофор
Carboxy-X-RhodamineROX
Пример 5′:ROX/ACGTACGT
5′/3′ 21 922
от 98 ₽
20 Sy698-C3-N3Sy698
флуорофор
Sy698 DyeSy698-C3-N3
Пример 5′:Sy698-C3-N3/ACGTACGT
5′/3′ 843
от 196 ₽
21 T-Cy5Cy5
флуорофор
Cy5 (Internal dT)T-Cy5
Пример внутри:AC(T-Cy5)GTAC
T 19 987
от 240 ₽
22 T-FAMFAM
флуорофор
6-Carboxyfluorescein (Internal dT)T-FAM
Пример внутри:AC(T-FAM)GTAC
T 38 815
от 196 ₽
23 T-R6GR6G
флуорофор
Carboxyrhodamine 6G (Internal dT)T-R6G
Пример внутри:AC(T-R6G)GTAC
T 896
от 240 ₽
24 T-ROXROX
флуорофор
6-Carboxy-X-Rhodamine (Internal dT)T-ROX
Пример внутри:AC(T-ROX)GTAC
T
от 196 ₽
25 T-TAMRATAMRA
флуорофор
6-Carboxytetramethylrhodamine (Internal dT)T-TAMRA
Пример внутри:AC(T-TAMRA)GTAC
T 32 869
от 240 ₽
26 T-Сy3Сy3
флуорофор
Cy3 (Internal dT)T-Сy3
Пример внутри:AC(T-Сy3)GTAC
T 14 1 045
от 240 ₽
27 T-Сy5Сy5
флуорофор
Cy5 (Internal dT)T-Сy5
Пример внутри:AC(T-Сy5)GTAC
T 19 987
от 240 ₽
28 TAMRATAMRA
флуорофор
CarboxytetramethylrhodamineTAMRA
Пример 5′:TAMRA/ACGTACGT
5′/3′ 32 746
от 98 ₽
29 TETTET
флуорофор
6-CarboxytetrachlorofluoresceinTET
Пример 5′:TET/ACGTACGT
5′ 16 838
от 330 ₽
Quenchers
30 5'-RTQ1RTQ1
гаситель
RTQ1 Amidite for 5' End5'-RTQ1
Пример 5′:5'-RTQ1/ACGTACGT
5′ 8 658
31 BHQ1BHQ1
гаситель
Black Hole Quencher-1<p>With the growing popularity of red and near-infrared dyes, we are offering the Black Hole QuencherTM dyes (BHQs). BHQ dyes are robust dark quenchers that very nicely complement our existing product line. They ar…
Пример 5′:BHQ1/ACGTACGT
5′/3′ 8 569
от 98 ₽
32 BHQ2BHQ2
гаситель
Black Hole Quencher-2BHQ2
Пример 5′:BHQ2/ACGTACGT
5′/3′ 8 571
от 98 ₽
33 BHQ3BHQ3
гаситель
Black Hole Quencher-3BHQ3
Пример 5′:BHQ3/ACGTACGT
5′/3′ 13 612
от 98 ₽
34 MGBMGB
гаситель
minor groove bindingMGB
Пример 3′:ACGTACGT/MGB
3′ 831
от 1 145 ₽
35 RTQ1RTQ1
гаситель
Real Time Quencher-1RTQ1
Пример 5′:RTQ1/ACGTACGT
5′/3′ 8 660
от 98 ₽
36 T-BHQ1BHQ1
гаситель
Black Hole Quencher 1 (Internal dT)<p><a class="float-start me-3" data-fancybox="filemanager" href="https://t.syntol-npk.ru/image/catalog/oligonucleotides/modifications/BHQ-2-dT.png"><img alt="" class…
Пример внутри:AC(T-BHQ1)GTAC
T 30 955
от 240 ₽
37 T-BHQ2BHQ2
гаситель
Black Hole Quencher 2 (Internal dT)T-BHQ2
Пример внутри:AC(T-BHQ2)GTAC
T 26 957
от 240 ₽
Ungrouped
38 SH
гаситель
ThiolSH
Пример 3′:ACGTACGT/SH
3′ 322
от 51 ₽

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Use the catalog as a reference and configure the final construct in the editor.

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