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BX LAB PRODUCT CATEGORY

Other Phosphoramidites

Quick view. Specialty phosphoramidites for noncanonical bases, labels, conjugation handles and backbone modifications. This category currently includes 104 products. Other Phosphoramidites products provide protected, sequence-addressable building blocks for solid-phase oligonucleotide synthesis and modified-sequence research.

Products104
Use scopeResearch use only
Pack sizeCustomized to requirements
SupportSelection and custom synthesis review

Category guide

Typical use

Other Phosphoramidites products provide protected, sequence-addressable building blocks for solid-phase oligonucleotide synthesis and modified-sequence research.

How to select

Confirm base and sugar identity, protecting groups, stereochemistry, linker or label position, and compatibility with coupling and deprotection conditions.

How to qualify

Review identity, chromatographic purity, phosphorus-related quality attributes, water sensitivity and performance in a short test sequence.

Product-family considerations

Common advantages
  • Phosphoramidite chemistry is modular, automated and compatible with fast sequence iteration.
  • Modified sugar, base or linker motifs let researchers tune duplex stability, specificity, hydrophobicity, steric profile and downstream conjugation options.
Common limitations
  • Modified amidites can require adjusted coupling time, activator choice, deprotection conditions and analytical release methods.
  • Moisture sensitivity and storage history are important because degraded amidite can reduce coupling efficiency.

Category literature

These publications provide background for the Other Phosphoramidites product family. Individual product pages only show additional product- or feature-relevant references.

Selection checklist

Exact identityMatch the canonical name with a CAS number, structure, SMILES or drawing; confirm stereochemistry, protecting groups and salt form where applicable.
SpecificationDefine target purity, analytical method, water or residual-solvent concerns and any application-specific acceptance limits.
Workflow fitShare the reaction, enzyme, sequence, solvent system, support or analytical method used to evaluate compatibility.
Supply needProvide initial quantity, expected future scale, packaging preference, timeline and documentation requirements.

104 products

1-Viny1-9H-Carbazole-3-Carbonitrile-Phosphoramidite

≥98% · CAS: 1157899-72-3

BX-OP-00015'-O-DMT-2'-O-MOE-5-Me-rC(Bz)-3'- ((2-cyanoethoxy)(diisopropylamino)phosphoramidite)-ethyl-diisopropylphosphoramidite

Specification on request · CAS: N/A

BX-OP-00025'-O-DMT-2'-O-MOE-rG(iBu)-3'- ((2-cyanoethoxy)(diisopropylamino)phosphoramidite)-ethyl-diisopropylphosphoramidite

Specification on request · CAS: N/A

BX-OP-00035'-O-DMT-2'-O-MOE-rT-3'- ((2-cyanoethoxy)(diisopropylamino)phosphoramidite)-ethyl-diisopropylphosphoramidite

Specification on request · CAS: N/A

BX-OP-00046-((bis(4-methoxyphenyl)(phenyl)methyl)amino)hexyl (2-cyanoethyl) diisopropylphosphoramidite

Specification on request · CAS: 116919-15-4

BX-OP-0006Bis(5'-O-DMTr-2'-O-MOE-5-Me-rC(Bz)-3'-oxy)-diisopropylphosphoramidite

Specification on request · CAS: N/A

BX-OP-0007Bis(5'-O-DMTr-2'-O-MOE-rA(Bz)-3'-oxy)-diisopropylphosphoramidite

Specification on request · CAS: N/A

BX-OP-0008Bis(5'-O-DMTr-2'-O-MOE-rG(iBu)-3'-oxy)-diisopropylphosphoramidite

Specification on request · CAS: N/A

BX-OP-0009Bis(5'-O-DMTr-2'-O-MOE-rT-3'-oxy)-diisopropylphosphoramidite

Specification on request · CAS: N/A

BX-OP-0010DMTr-1'-O-Ac-3'-CE-Phosphoramidite (α, β mix)

≥98% · CAS: N/A

BX-OP-0011DMTr-1'-O-C6-NHTFA-2'-Deoxyribose-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0012DMTr-2',2'-diFluoro-dA(Bz)-3'-CE-Phosphoramidite

≥98% · CAS: 3055573-22-0

BX-OP-0013DMTr-2',2'-diFluoro-dC(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: 142808-44-4

BX-OP-0014DMTr-2',2'-diFluoro-dG(iBu)-3'-CE-Phosphoramidite

≥98% · CAS: N/A

BX-OP-0015DMTr-2',2'-diFluoro-dU-3'-CE-Phosphoramidite

≥98% · CAS: N/A

BX-OP-0016DMTr-2'-O-(Methyl behenate)-rC(Ac)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0017DMTr-2'-O-(Methyl behenate)-rG(iBu)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0018DMTr-2'-O-Bn-rA(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0019DMTr-2'-O-Bn-rC(Ac)-3'-CE-Phosphoramidite

Specification on request · CAS: 1314972-07-0

BX-OP-0020DMTr-2'-O-Bn-rG(iBu)-3'-CE-Phosphoramidite

Specification on request · CAS: 1314972-06-9

BX-OP-0021DMTr-2'-O-Bn-rU-3'-CE-Phosphoramidite

Specification on request · CAS: 1314972-05-8

BX-OP-0022DMTr-2'-O-Bu-5-Me-rC(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0023DMTr-2'-O-Bu-rA(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0024DMTr-2'-O-Bu-rG(iBu)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0025DMTr-2'-O-Bu-rT-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0026DMTr-2'-O-C6-rA(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: 2642321-66-0

BX-OP-0031DMTr-2'-O-C6-rC(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: 2642321-61-5

BX-OP-0032DMTr-2'-O-C6-rG(iBu)-3'-CE-Phosphoramidite

Specification on request · CAS: 2642321-69-3

BX-OP-0033DMTr-2'-O-C6-rU-3'-CE-Phosphoramidite

Specification on request · CAS: 2382942-78-9

BX-OP-0034DMTr-2'-O-EOE-5-Me-rC(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0035DMTr-2'-O-EOE-rA(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0036DMTr-2'-O-EOE-rG(iBu)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0037DMTr-2'-O-EOE-rT-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0038DMTr-2'-O-Et-5-Me-rC(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0039DMTr-2'-O-Et-rA(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0040DMTr-2'-O-Et-rC(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0041DMTr-2'-O-Et-rG(iBu)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0042DMTr-2'-O-Et-rT-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0043DMTr-2'-O-Et-rU-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0044DMTr-2'-O-MOEOE-5-Me-rC(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0045DMTr-2'-O-MOEOE-rA(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0046DMTr-2'-O-MOEOE-rG(iBu)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0047DMTr-2'-O-MOEOE-rT-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0048DMTr-2'-O-Trifluoroacetamindo propyl-rC(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: 165381-54-4

BX-OP-0049DMTr-2'-O-[2-(TFA)aminoethoxymethyl]-rA(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: 1953146-95-6

BX-OP-0050DMTr-2'-O-[2-(TFA)aminoethoxymethyl]-rG(iBu)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0051DMTr-2'-O-propyl-rA(Bz)-3'-CE-Phosphoramidite

≥98% · CAS: 1448230-09-8

BX-OP-0052DMTr-2'-O-propyl-rC(Bz)-3'-CE-Phosphoramidite

≥98% · CAS: 192564-89-9

BX-OP-0053DMTr-2'-O-propyl-rG(iBu)-3'-CE-Phosphoramidite

≥98% · CAS: 160526-45-4

BX-OP-0054DMTr-2'-O-propyl-rU-3'-CE-Phosphoramidite

≥98% · CAS: 160526-54-5

BX-OP-0055DMTr-2'-Trifluoroacetamido-rC(Ac)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0056DMTr-2'-deoxy-8-azanebularine-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0057DMTr-3'-O-MOE-rA(Bz)-2'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0058DMTr-3'-O-MOE-rG(iBu)-2'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0059di(5'-O-DMTr-2'-O-MOE-5-Me-rC(Bz)-3'-oxy)-(oxybis(ethane-1,2-diyl))-bis(diisopropylphosphoramidite)

Specification on request · CAS: N/A

BX-OP-0060di(5'-O-DMTr-2'-O-MOE-rA(Bz)-3'-oxy)-(oxybis(ethane-1,2-diyl))-bis(diisopropylphosphoramidite)

Specification on request · CAS: N/A

BX-OP-0061di(5'-O-DMTr-2'-O-MOE-rG(iBu)-3'-oxy)-(oxybis(ethane-1,2-diyl))-bis(diisopropylphosphoramidite)

Specification on request · CAS: N/A

BX-OP-0062di(5'-O-DMTr-2'-O-MOE-rT-3'-oxy)-(oxybis(ethane-1,2-diyl))-bis(diisopropylphosphoramidite)

Specification on request · CAS: N/A

BX-OP-0063ethane-1,2-di(5'-O-DMTr-2'-O-MOE-5-Me-rC(Bz)-3'-oxy)-bis(diisopropylphosphoramidite)

Specification on request · CAS: N/A

BX-OP-0064ethane-1,2-di(5'-O-DMTr-2'-O-MOE-rA(Bz)-3'-oxy)-bis(diisopropylphosphoramidite)

Specification on request · CAS: N/A

BX-OP-0065ethane-1,2-di(5'-O-DMTr-2'-O-MOE-rG(iBu)-3'-oxy)-bis(diisopropylphosphoramidite)

Specification on request · CAS: N/A

BX-OP-0066ethane-1,2-di(5'-O-DMTr-2'-O-MOE-rT-3'-oxy)-bis(diisopropylphosphoramidite)

Specification on request · CAS: N/A

BX-OP-0067DMTr-2'-O-iPr-rA(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0071DMTr-2'-O-iPr-rU-3'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-00723'-O-TBDMS-2'-O-[2-(hexadecanoyl)aminoethoxymethyl]-rC(Ac)-5'-CE-Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0073DMTr-4'-F-5-Methyluridine-CED Phosphoramidite

Specification on request · CAS: 2758388-05-3

BX-OP-00741-[(5E)-3-O-[(Bis-diisopropyl amino)(2-cyano ethoxy)phosphino]-5,6-dideoxy-6-(diethoxy phosphinyl)-2-O-(2-methoxyethyl)-β-D-ribo-hex-5-enofuranosyl]uracil

Specification on request · CAS: N/A

BX-OP-01551-[3-(4-monomethoxytrityloxy)propyl]-1'-[3-[(2-cyanoethyl)-(N, N-diisopropyl) phosphoramidityl]propyl]-3, 3, 3', 3'-tetramethylindocarbocyanine chloride

Specification on request · CAS: N/A

BX-OP-01531-{2'-O-[(2-Cyanoethoxy)(diisopropyl amino)phosphino]-3'-O-[(4,4'-dimethoxytriphenyl)methyl]--L-threofuranosyl} uracil

Specification on request · CAS: N/A

BX-OP-01562'-O-PivOM-U-3'-CE-Phosphoramidite

Specification on request · CAS: 1097131-15-1

BX-OP-00762'-O-PivOM-C(Ac)-3'-CE-Phosphoramidite

Specification on request · CAS: 1097131-18-4

BX-OP-00772'-O-PivOM-A(PAc)-CE-Phosphoramidite

Specification on request · CAS: 1097131-21-9

BX-OP-00785'-DMTr-T-Methyl phosphonamidite

Specification on request · CAS: 114079-04-8

BX-OP-00792'-Deoxy-2'-(N-trifluoroacetyl)amino-5'-O-DMTr-uridine 3'-CED phosphoramidite

Specification on request · CAS: 126139-44-4

BX-OP-01583'-Deoxy-5'-O-(4,4'-dimethoxytrityl)-3'-fluorouridine-2'-CED-phosphoramidite

Specification on request · CAS: 129015-63-0

BX-OP-01591-[(5E)-3-O-[(Bis-di-isopropyl amino)(2-cyanoethoxy) phosphino]-5,6-dideoxy-6-(diethoxyphosphinyl)-2-O-(2-methoxyethyl)-β-D-ribo-hex-5-enofuranosyl]-5-methyluracil

Specification on request · CAS: 1345562-47-1

BX-OP-01572'-TMBTM-A(Bz)-CE-Phosphoramidite

Specification on request · CAS: 1449578-46-4

BX-OP-0083DMTr-dH2U-amidite

Specification on request · CAS: 151503-28-5

BX-OP-00842'-O-ALE-A(Bz)-CE-Phosphoramidite

Specification on request · CAS: 1541908-27-3

BX-OP-00852'-OAc-G(iBu)-ANA-CE-Phosphoramidite

Specification on request · CAS: 160684-51-5

BX-OP-0087N1-Me-dpU-CE-Phosphoramidite

Specification on request · CAS: 170933-43-4

BX-OP-0089N6-Bz-5'-O-DMTr-3'-O-methyladenosine-2'-O-CED-phosphoramidite

Specification on request · CAS: 179479-02-8

BX-OP-00913'-O-Me-G(iBu)-2'-phosphoramidite

Specification on request · CAS: 179479-04-0

BX-OP-00923'-O-Me-U-2'-phosphoramidite

Specification on request · CAS: 179479-05-1

BX-OP-00932'-O-(2-Cyanoethoxy) (diisopropylamino)phosphino-3'-O-(4,4'-dimethoxy triphenyl)methyl-N2-isobutyryl-(R)-9-(2,3-dihydroxypropyl)-guanine

Specification on request · CAS: N/A

BX-OP-01545'-O-DMTr-2'-OMeU-methyl phosphonamidite

Specification on request · CAS: 191786-64-8

BX-OP-00942, 6-diamino(N2, N6-diisobutyryl)- 5'-O-(4, 4'-Dimethoxytrityl)-2'-O-purine riboside-3'-cyanoethyl PhosphoramiditeMethoxyethyl-

Specification on request · CAS: N/A

BX-OP-00952'-O-(4,4'-Dimethoxytrityl)-N2-isobutyroyl-3'-O-methyl guanosine-5'-CED-phosphoramidite

Specification on request · CAS: 2241581-19-9

BX-OP-01002'-TMBTM-C(Bz)-CE-Phosphoramidite

Specification on request · CAS: 2253978-43-5

BX-OP-01013'-O-MOE-5MeU-2'-phosphoramidite

Specification on request · CAS: 256223-93-5

BX-OP-01032'-OAc-A(Bz)-ANA-CE-Phosphoramidite

Specification on request · CAS: 2756253-85-5

BX-OP-0104dpU-CE-Phosphoramidite

Specification on request · CAS: 289712-98-7

BX-OP-0106DMTr-FNA-C(Bz)phosphoramidite

Specification on request · CAS: 326802-62-4

BX-OP-01082'-O-(Methoxycarbonyl)methyl-A(Bz)-3'-CE-Phosphoramidite

Specification on request · CAS: 329279-48-3

BX-OP-01092'-OAc-C(Ac)-ANA-CE-Phosphoramidite

Specification on request · CAS: 373645-92-2

BX-OP-01105'-O-(4,4'-Dimethoxytrityl)-2'-deoxy-3-formylindole-ribofuranosyl-3'-[(2-cyano ethyl)-(N,N-diisopropyl)]-phosphoramidite

Specification on request · CAS: 460355-05-9

BX-OP-01115'-O-(4, 4'-Dimethoxytrityl)-2'-O-(t-butyldimethylsilyl)-inosine-3'-cyanoethyl Phosphoramidite

Specification on request · CAS: N/A

BX-OP-01165'-O-(4, 4'-Dimethoxytrityl)-2'-O-(t-butyldimethylsilyl)-N1-methyl-Pseudouridine-3'-cyanoethyl Phosphoramidite

Specification on request · CAS: N/A

BX-OP-01175'-O-(4,4'-Dimethoxytrityl)-N2-iso-butyroyl-3'-O-(2-methoxyethyl)guanosine-2'-O-[(2-cyanoethyl)(N,N-diisopropyl)]phosphoramidite

Specification on request · CAS: N/A

BX-OP-0119BAN-T-CE-Phosphoramidite

Specification on request · CAS: 847666-85-7

BX-OP-0125N1-(4, 4'-Dimethoxytrityl)-biotinyl-6-aminohexyl]-2-cyanoethyl-(N, N-diisopropyl)-phosphoramidite

Specification on request · CAS: N/A

BX-OP-0137N2-isobutyryl-5'-O-(4, 4'-dimethoxytrityl)-2'-O-(2-(2-Methoxyethoxy)ethyl)-guanosine-3'-cyanoethyl Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0141N6-benzoyl-5'-O-(4, 4'-dimethoxytrityl)-2'-O-(2-(2-Methoxyethoxy)ethyl)-adenosine-3'-cyanoethyl Phosphoramidite

Specification on request · CAS: N/A

BX-OP-0146N6-Benzoyl-5'-O-(4,4'-dimethoxytrityl)-3'-O-(2-methoxyethyl)adenosine- 2'-O-[(2-cyanoethyl)(N,N-diisopropyl)]phosphorramidite

Specification on request · CAS: N/A

BX-OP-0147

Frequently asked questions

What are typical uses for Other Phosphoramidites?

Other Phosphoramidites products provide protected, sequence-addressable building blocks for solid-phase oligonucleotide synthesis and modified-sequence research.

What should be confirmed before ordering Other Phosphoramidites?

Confirm base and sugar identity, protecting groups, stereochemistry, linker or label position, and compatibility with coupling and deprotection conditions.

Are custom quantities or related analogs available?

BX Lab reviews custom package sizes, catalog-adjacent analogs and research-use custom synthesis requests against the target structure, purity, scale and timeline.

Need help selecting a product?

Tell our scientists about your target chemistry, workflow, required purity and scale. We can help identify a catalog product, related analog or custom route.

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