BX LAB PRODUCT CATEGORY
Other Phosphoramidites
Quick view. Specialty phosphoramidites for noncanonical bases, labels, conjugation handles and backbone modifications. This category currently includes 84 products. Other Phosphoramidites products provide protected, sequence-addressable building blocks for solid-phase oligonucleotide synthesis and modified-sequence research.
Category guide
Other Phosphoramidites products provide protected, sequence-addressable building blocks for solid-phase oligonucleotide synthesis and modified-sequence research.
Confirm base and sugar identity, protecting groups, stereochemistry, linker or label position, and compatibility with coupling and deprotection conditions.
Review identity, chromatographic purity, phosphorus-related quality attributes, water sensitivity and performance in a short test sequence.
Product-family considerations
- 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.
- 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 identity | Match the canonical name with a CAS number, structure, SMILES or drawing; confirm stereochemistry, protecting groups and salt form where applicable. |
|---|---|
| Specification | Define target purity, analytical method, water or residual-solvent concerns and any application-specific acceptance limits. |
| Workflow fit | Share the reaction, enzyme, sequence, solvent system, support or analytical method used to evaluate compatibility. |
| Supply need | Provide initial quantity, expected future scale, packaging preference, timeline and documentation requirements. |
84 products
5'-DMT Amino-Modifier C6 Phosphoramidite≥98% · CAS: 116919-15-4
BX-OP-0006
5'-DMTr-T-Methyl phosphonamidite≥98% · CAS: 114079-04-8
BX-OP-0079
2'-Deoxy-2'-(N-trifluoroacetyl)amino-5'-O-DMTr-uridine 3'-CED phosphoramidite≥98% · CAS: 126139-44-4
BX-OP-0158
DMTr-dH2U-amidite≥98% · CAS: 151503-28-5
BX-OP-0084
2'-O-PivOM-U-3'-CE-Phosphoramidite≥98% · CAS: 1097131-15-1
BX-OP-0076
2'-O-PivOM-C(Ac)-3'-CE-Phosphoramidite≥98% · CAS: 1097131-18-4
BX-OP-0077
2'-O-PivOM-A(Pac)-3'-CE-Phosphoramidite≥98% · CAS: 1097131-21-9
BX-OP-0078![Chemical structure of [1-N-(4,4'-Dimethoxytrityl)-biotinyl-6-aminohexyl]-2-cyanoethyl-(N,N-diisopropyl)-phosphoramidite](/structures/9b1c47ba3d422557.svg)
[1-N-(4,4'-Dimethoxytrityl)-biotinyl-6-aminohexyl]-2-cyanoethyl-(N,N-diisopropyl)-phosphoramidite≥97% · CAS: 135137-87-0
BX-OP-0137
DMTr-4'-F-5-Methyluridine-CED Phosphoramidite≥98% · CAS: 2758388-05-3
BX-OP-0074
2'-OAc-A(Bz)-ANA-CE-Phosphoramidite≥98% · CAS: 2756253-85-5
BX-OP-0104
DMTr-FNA-C(Bz)phosphoramidite≥98% · CAS: 326802-62-4
BX-OP-0108
2'-OAc-C(Ac)-ANA-CE-Phosphoramidite≥98% · CAS: 373645-92-2
BX-OP-0110
5-Formylindole-CE Phosphoramidite≥98% · CAS: 460355-05-9
BX-OP-0111
BAN-T-CE-Phosphoramidite≥98% · CAS: 847666-85-7
BX-OP-0125
3'-Deoxy-5'-O-(4,4'-dimethoxytrityl)-3'-fluorouridine-2'-CED-phosphoramidite≥98% · CAS: 129015-63-0
BX-OP-0159
3-Cyanovinylcarbazole Phosphoramidite≥98% · CAS: 1157899-72-3
BX-OP-0001
5'-O-DMTr-2'-O-MOE-5-Me-rC(Bz) Bis(phosphoramidite)≥98% · CAS: N/A
BX-OP-0002
5'-O-DMTr-2'-O-MOE-rG(iBu) Bis(phosphoramidite)≥98% · CAS: N/A
BX-OP-0003
5'-O-DMTr-2'-O-MOE-rT Bis(phosphoramidite)≥98% · CAS: N/A
BX-OP-0004
Bis(5'-O-DMTr-2'-O-MOE-5-Me-rC(Bz)-3'-oxy)-diisopropylphosphoramidite≥98% · CAS: N/A
BX-OP-0007
Bis(5'-O-DMTr-2'-O-MOE-rA(Bz)-3'-oxy)-diisopropylphosphoramidite≥98% · CAS: N/A
BX-OP-0008
Bis(5'-O-DMTr-2'-O-MOE-rG(iBu)-3'-oxy)-diisopropylphosphoramidite≥98% · CAS: N/A
BX-OP-0009
DMTr-1'-O-Ac-3'-CE-Phosphoramidite (alpha, beta mix)≥98% · CAS: N/A
BX-OP-0011
DMTr-1'-O-C6-NHTFA-2'-Deoxyribose-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0012
DMTr-2',2'-diFluoro-dA(Bz)-3'-CE-Phosphoramidite≥98% · CAS: 3055573-22-0
BX-OP-0013
DMTr-2',2'-diFluoro-dC(Bz)-3'-CE-Phosphoramidite≥98% · CAS: 142808-44-4
BX-OP-0014
DMTr-2',2'-diFluoro-dG(iBu)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0015
DMTr-2',2'-diFluoro-dU-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0016
DMTr-2'-O-(Methyl behenate)-rC(Ac)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0017
DMTr-2'-O-(Methyl behenate)-rG(iBu)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0018
DMTr-2'-O-Bn-rC(Ac)-3'-CE-Phosphoramidite≥98% · CAS: 1314972-07-0
BX-OP-0020
DMTr-2'-O-Bn-rG(iBu)-3'-CE-Phosphoramidite≥98% · CAS: 1314972-06-9
BX-OP-0021
DMTr-2'-O-Bn-rU-3'-CE-Phosphoramidite≥98% · CAS: 1314972-05-8
BX-OP-0022
DMTr-2'-O-Bu-5-Me-rC(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0023
DMTr-2'-O-Bu-rA(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0024
DMTr-2'-O-Bu-rG(iBu)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0025
DMTr-2'-O-C6-rA(Bz)-3'-CE-Phosphoramidite≥98% · CAS: 2642321-66-0
BX-OP-0031
DMTr-2'-O-C6-rC(Bz)-3'-CE-Phosphoramidite≥98% · CAS: 2642321-61-5
BX-OP-0032
DMTr-2'-O-C6-rG(iBu)-3'-CE-Phosphoramidite≥98% · CAS: 2642321-69-3
BX-OP-0033
DMTr-2'-O-C6-rU-3'-CE-Phosphoramidite≥98% · CAS: 2382942-78-9
BX-OP-0034
DMTr-2'-O-EOE-5-Me-rC(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0035
DMTr-2'-O-EOE-rA(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0036
DMTr-2'-O-EOE-rG(iBu)-3'-CE-Phosphoramidite≥98% · CAS: 2253990-02-0
BX-OP-0037
DMTr-2'-O-EOE-rT-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0038
DMTr-2'-O-Et-5-Me-rC(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0039
DMTr-2'-O-Et-rA(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0040
DMTr-2'-O-Et-rC(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0041
DMTr-2'-O-Et-rG(iBu)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0042
DMTr-2'-O-Et-rT-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0043
DMTr-2'-O-Et-rU-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0044
DMTr-2'-O-MOEOE-5-Me-rC(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0045
DMTr-2'-O-MOEOE-rA(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0046
DMTr-2'-O-MOEOE-rG(iBu)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0047
DMTr-2'-O-Trifluoroacetamido propyl-rC(Bz)-3'-CE-Phosphoramidite≥98% · CAS: 165381-54-4
BX-OP-0049![Chemical structure of DMTr-2'-O-[2-(TFA)aminoethoxymethyl]-rA(Bz)-3'-CE-Phosphoramidite](/structures/1fc63fabeb66e30c.jpg)
DMTr-2'-O-[2-(TFA)aminoethoxymethyl]-rA(Bz)-3'-CE-Phosphoramidite≥98% · CAS: 1953146-95-6
BX-OP-0050
DMTr-2'-O-propyl-rA(Bz)-3'-CE-Phosphoramidite≥98% · CAS: 1448230-09-8
BX-OP-0052
DMTr-2'-O-propyl-rC(Bz)-3'-CE-Phosphoramidite≥98% · CAS: 192564-89-9
BX-OP-0053
DMTr-2'-O-propyl-rG(iBu)-3'-CE-Phosphoramidite≥98% · CAS: 160526-45-4
BX-OP-0054
DMTr-2'-O-propyl-rU-3'-CE-Phosphoramidite≥98% · CAS: 160526-54-5
BX-OP-0055
5'-O-DMTr-2'-Trifluoroacetamido-C(Ac)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0056
3'-O-MOE-A(Bz)-2'-CED-phosphoramidite≥98% · CAS: 256224-01-8
BX-OP-0058
3'-O-MOE-G(iBu)-2'-CED-phosphoramidite≥98% · CAS: 256224-06-3
BX-OP-0059
di(5'-O-DMTr-2'-O-MOE-5-Me-rC(Bz)-3'-oxy)-(oxybis(ethane-1,2-diyl))-bis(diisopropylphosphoramidite)≥98% · CAS: N/A
BX-OP-0060
di(5'-O-DMTr-2'-O-MOE-rA(Bz)-3'-oxy)-(oxybis(ethane-1,2-diyl))-bis(diisopropylphosphoramidite)≥98% · CAS: N/A
BX-OP-0061
di(5'-O-DMTr-2'-O-MOE-rG(iBu)-3'-oxy)-(oxybis(ethane-1,2-diyl))-bis(diisopropylphosphoramidite)≥98% · CAS: N/A
BX-OP-0062
di(5'-O-DMTr-2'-O-MOE-rT-3'-oxy)-(oxybis(ethane-1,2-diyl))-bis(diisopropylphosphoramidite)≥98% · CAS: N/A
BX-OP-0063
ethane-1,2-di(5'-O-DMTr-2'-O-MOE-5-Me-rC(Bz)-3'-oxy)-bis(diisopropylphosphoramidite)≥98% · CAS: N/A
BX-OP-0064
ethane-1,2-di(5'-O-DMTr-2'-O-MOE-rA(Bz)-3'-oxy)-bis(diisopropylphosphoramidite)≥98% · CAS: N/A
BX-OP-0065
ethane-1,2-di(5'-O-DMTr-2'-O-MOE-rG(iBu)-3'-oxy)-bis(diisopropylphosphoramidite)≥98% · CAS: N/A
BX-OP-0066
ethane-1,2-di(5'-O-DMTr-2'-O-MOE-rT-3'-oxy)-bis(diisopropylphosphoramidite)≥98% · CAS: N/A
BX-OP-0067![Chemical structure of 1-[(5E)-3-O-[(Bis-di-isopropyl amino)(2-cyanoethoxy) phosphino]-5,6-dideoxy-6-(diethoxyphosphinyl)-2-O-(2-methoxyethyl)-beta-D-ribo-hex-5-enofuranosyl]-5-methyluracil](/structures/9e774afca66356bc.svg)
1-[(5E)-3-O-[(Bis-di-isopropyl amino)(2-cyanoethoxy) phosphino]-5,6-dideoxy-6-(diethoxyphosphinyl)-2-O-(2-methoxyethyl)-beta-D-ribo-hex-5-enofuranosyl]-5-methyluracil≥98% · CAS: 1345562-47-1
BX-OP-0157
2'-O-ALE-A(Bz)-CE-Phosphoramidite≥98% · CAS: 1541908-27-3
BX-OP-0085
5'-O-DMTr-N1-methyl-2'-deoxypseudouridine 3'-CE phosphoramidite≥98% · CAS: 170933-43-4
BX-OP-0089
N6-Bz-5'-O-DMTr-3'-O-methyladenosine-2'-O-CED-phosphoramidite≥98% · CAS: 179479-02-8
BX-OP-0091
3'-O-Me-G(iBu)-2'-phosphoramidite≥98% · CAS: 179479-04-0
BX-OP-0092
3'-O-Me-U-2'-phosphoramidite≥98% · CAS: 179479-05-1
BX-OP-0093
5'-O-DMTr-2'-O-methyluridine-3'-O-(P-methyl-N,N-diisopropylamino)phosphonamidite≥98% · CAS: 191786-64-8
BX-OP-0094
2'-O-DMTr-N2-isobutyroyl-3'-O-methylguanosine 5'-CE phosphoramidite≥98% · CAS: 2241581-19-9
BX-OP-0100
5'-O-DMTr-2'-O-TMBTM-C(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0101
VP-U-6≥98% · CAS: 2361324-80-1
BX-AMN-0249
3'-O-MOE-5MeU-2'-phosphoramidite≥98% · CAS: 256223-93-5
BX-OP-0103
5'-O-DMTr-2'-O-(methoxycarbonyl)methyl-A(Bz)-3'-CE-Phosphoramidite≥98% · CAS: N/A
BX-OP-0109
TAMRA-dT Phosphoramidite≥98% · CAS: N/A
BX-DP-0052
DMTr-2'-O-MOEOE-rT-3'-CE phosphoramidite≥98% · CAS: N/A
BX-OP-0048Frequently 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.