Reference

Modifications

Every modification and monomer available for custom synthesis. Hover a structure to zoom, and click a code to copy its sequence token.

216 modifications available

Available oligonucleotide modifications — structure, code, modification positions, category and molecular weight. Column headers are sortable.
Structure	Name	Positions	Category	MW (g/mol)	Order
	Biotin (3')	3′	Affinity Tag	437.45	Order
	Biotin (5')	5′	Affinity Tag	405.45	Order
	PC-Biotin (5')	5′	Affinity Tag	597.62	Order
	Biotin dT	5′int3′	Affinity Tag	684.70	Order
	Biotin TEG	5′int3′	Affinity Tag	569.61	Order
	Desthiobiotin TEG	5′int3′	Affinity Tag	539.56	Order
	Dual biotin	5′	Affinity Tag	840.93	Order
	Biotin (internal)	int	Affinity Tag	435.48	Order
	PC-Biotin dT	5′int3′	Affinity Tag	1184.22	Order
	2-Amino dA	5′int3′	Base Modification	328.22	Order
	5-Bromo dU	5′int	Base Modification	369.06	Order
	5-Carboxy dC	5′int3′	Base Modification	333.19	Order
	5-Fluoro dC	5′int	Base Modification	307.17	Order
	5-Fluoro dU	5′int	Base Modification	308.16	Order
	5-Formyl dC	5′int3′	Base Modification	317.19	Order
	5-Hydroxymethyl dC	5′int3′	Base Modification	319.21	Order
	5-Hydroxymethyl dU	5′int3′	Base Modification	320.19	Order
	5-Methyl dC	5′int3′	Base Modification	303.21	Order
	8-Oxo dG	5′int3′	Base Modification	345.21	Order
	Deoxyuridine	5′int3′	Base Modification	290.17	Order
—	Amino C6 dT labelled with 4-imidazole carboxylic acid	5′int3′	Base Modification	566.51	Order
	N6-Methyl A	5′int	Base Modification	343.23	Order
	N6-methyl dA	5′int3′	Base Modification	327.24	Order
	2'3' Dideoxy A	3′	Blocking Modification	297.21	Order
	2'3' Dideoxy C	3′	Blocking Modification	273.19	Order
	2'3' Dideoxy G	3′	Blocking Modification	313.21	Order
	2'3' Dideoxy T	3′	Blocking Modification	288.21	Order
	Puromycin	3′	Blocking Modification	533.48	Order
	3' Alkyne Serinol	3′	Conjugation Handle	334.26	Order
	Amino C3 (3')	3′	Conjugation Handle Linker	137.07	Order
	Amino C7 (3')	3′	Conjugation Handle Linker	209.18	Order
	Thiol C3 SS	3′	Conjugation Handle	244.26	Order
	Thiol C3 SH	3′	Conjugation Handle	154.12	Order
	Amino C3 (5')	5′	Conjugation Handle Linker	137.07	Order
—	5' Amino TEG	5′	Conjugation Handle	255.21	Order
	Amino C12	5′	Conjugation Handle Linker	263.32	Order
	Amino C2 dT	5′int3′	Conjugation Handle Linker	402.30	Order
	Amino C6	5′3′	Conjugation Handle Linker	179.16	Order
	Amino C6 dT	5′int3′	Conjugation Handle Linker	458.41	Order
	Amino C6 labelled with 6-azido hexanoic acid	5′3′	Conjugation Handle	318.31	Order
	Amino C6 dT labelled with 6-azido hexanoic acid	5′int3′	Conjugation Handle	597.57	Order
	Amino C6 labelled with BCN	5′3′	Conjugation Handle	355.37	Order
	Amino C6 dT labelled with BCN	5′int3′	Conjugation Handle	634.62	Order
	5' BCN II	5′	Conjugation Handle	343.32	Order
	C8 Alkyne dC	5′int3′	Conjugation Handle	393.34	Order
	C8 Alkyne dU	5′int3′	Conjugation Handle	394.32	Order
	Amino C6 labelled with DBCO C4	5′int3′	Conjugation Handle	466.47	Order
	Amino C6 dT labelled with DBCO C4	5′int3′	Conjugation Handle	745.73	Order
	Amino C6 labelled with DBCO C6	5′3′	Conjugation Handle	494.53	Order
	Amino C6 dT labelled with DBCO C6	5′int3′	Conjugation Handle	773.78	Order
	DBCO TEG	5′	Conjugation Handle	570.58	Order
—	dR Amino C6 Alpha	5′int3′	Conjugation Handle	295.27	Order
—	dR Amino C6 Beta	5′int3′	Conjugation Handle	295.27	Order
	Hexynyl	5′	Conjugation Handle	160.11	Order
	Amino C3 (internal)	int	Conjugation Handle Linker	153.07	Order
	Amino C7 (internal)	int	Conjugation Handle Linker	209.18	Order
	Amino C6 labelled with Maleimide C3	5′3′	Conjugation Handle	330.28	Order
	Amino C6 dT labelled with Maleimide	5′int3′	Conjugation Handle	722.69	Order
	Amino C6 labelled with Maleimide C6	5′3′	Conjugation Handle	372.36	Order
	Methacrylate	5′	Conjugation Handle	247.23	Order
	Thiol C6 SS	5′int3′	Conjugation Handle	328.42	Order
	Thiol C6 SH	5′3′	Conjugation Handle	196.20	Order
	3' Cal Fluor Red 610	3′	Fluorescent Label	1033.11	Order
	6-Fluorescein (3')	3′	Fluorescent Label	569.46	Order
	3' Quasar 570	3′	Fluorescent Label	606.72	Order
	3' Quasar 670	3′	Fluorescent Label	632.76	Order
	5' Cal Fluor Red 610	5′	Fluorescent Label	636.71	Order
	6-Fluorescein (5')	5′	Fluorescent Label Fluorophore	537.46	Order
	5' Quasar 570	5′	Fluorescent Label	620.74	Order
	5' Quasar 670	5′	Fluorescent Label	646.77	Order
—	Amino C6 labelled with AF488	5′int3′	Fluorescent Label	694.60	Order
—	Amino C6 labelled with AF647	5′3′	Fluorescent Label Fluorophore	1003.10	Order
	Amino C6 labelled with ATTO 488	5′3′	Fluorescent Label	751.74	Order
	Amino C6 dT labelled with ATTO 488	5′int3′	Fluorescent Label	1030.99	Order
	Amino C6 labelled with ATTO 532	5′3′	Fluorescent Label	807.85	Order
	Amino C6 dT labelled with ATTO 532	5′int3′	Fluorescent Label	1087.10	Order
	Amino C6 labelled with ATTO 565	5′3′	Fluorescent Label	770.86	Order
	Amino C6 dT labelled with ATTO 565	5′int3′	Fluorescent Label	1050.11	Order
	Amino C6 labelled with ATTO 647N	5′3′	Fluorescent Label	808.04	Order
	Amino C6 dT labelled with ATTO 647N	5′int3′	Fluorescent Label	1087.29	Order
	Cyanine 3	5′int3′	Fluorescent Label	507.59	Order
	Cyanine 5	5′int3′	Fluorescent Label	533.63	Order
	Cyanine 5.5	5′int	Fluorescent Label	633.75	Order
	Amino C6 labelled with Digoxigenin	5′3′	Fluorescent Label	836.02	Order
	Amino C6 dT labelled with Digoxigenin	5′int3′	Fluorescent Label	1115.27	Order
—	5' Amino TEG labelled with FAM	5′	Fluorescent Label	613.21	Order
	Fluorescein dT	5′int3′	Fluorescent Label	816.71	Order
	Hexachlorofluoroscein	5′	Fluorescent Label	744.11	Order
	6-Fluorescein (internal)	5′int	Fluorescent Label	567.49	Order
—	Amino C6 labelled with JF549	5′3′	Fluorescent Label	615.62	Order
—	Amino C6 dT labelled with JF549	5′int3′	Fluorescent Label	894.88	Order
—	Amino C6 labelled with JF646	5′3′	Fluorescent Label	657.60	Order
—	Amino C6 labelled with pHrodo Red	5′3′	Fluorescent Label	705.76	Order
	Quasar 570 dT	5′int	Fluorescent Label	912.06	Order
	Quasar 670 dT	5′int	Fluorescent Label	938.10	Order
	Amino C6 labelled with ROX	5′3′	Fluorescent Label	695.75	Order
	Amino C6 dT labelled with ROX	5′int3′	Fluorescent Label	975.00	Order
	SIMA-HEX-dT	5′int3′	Fluorescent Label	1037.79	Order
	Amino C6 labelled with 6-TAMRA	5′3′	Fluorescent Label	591.60	Order
	Amino C6 dT labelled with 6-TAMRA	5′int3′	Fluorescent Label	870.85	Order
	TET	5′	Fluorescent Label	675.24	Order
	Amino C6 labelled with Texas Red	5′3′	Fluorescent Label	881.01	Order
	Amino C6 dT labelled with Texas Red	5′int3′	Fluorescent Label	1160.26	Order
	BHQ-1 (3')	3′	Quencher	554.50	Order
	BHQ-2 (3')	3′	Quencher	556.47	Order
	3' Dabcyl	3′	Quencher	462.44	Order
	BHQ-1 (5')	5′	Quencher	538.50	Order
	BHQ-2 (5')	5′	Quencher	540.47	Order
	5' Dabcyl	5′	Quencher	530.44	Order
	BHQ-1 dT	5′int	Quencher	960.94	Order
	BHQ-2 dT	5′int	Quencher	962.91	Order
—	BHQ-3	5′int3′	Quencher	597.64	Order
	Dabcyl dT	5′int	Quencher	709.70	Order
	BHQ-1 (internal)	int	Quencher	554.50	Order
	BHQ-2 (internal)	int3′	Quencher	556.47	Order
	dspacer (abasic)	5′int3′	Spacer	180.10	Order
	PC Spacer	5′int	Spacer	344.26	Order
	Spacer C12	5′int3′	Spacer	264.30	Order
	Spacer 18	5′int3′	Spacer	344.30	Order
	Spacer C2	5′int3′	Spacer	124.03	Order
	Spacer C3	5′int3′	Spacer	138.06	Order
	Spacer C6	5′int3′	Spacer	180.14	Order
	Spacer 9	5′int3′	Spacer	212.14	Order
	2-Aminopurine	5′int3′	Base Analogue	313.21	Order
	2' F A	5′int3′	Ribose Modification	331.20	Order
	2' F C	5′int3′	Ribose Modification	307.17	Order
	2' F G	5′int3′	Ribose Modification	347.20	Order
	2' F U	5′int3′	Ribose Modification	308.16	Order
	2' OMe A	5′int3′	Ribose Modification	343.24	Order
	2' OMe C	5′int3′	Ribose Modification	319.21	Order
	2' OMe G	5′int3′	Ribose Modification	359.23	Order
—	2' OMe N (A/C/G/U average)	5′int3′wob	Wobble	335.47	Order
	2' OMe U	5′int3′	Ribose Modification	320.19	Order
	3' Cholesterol	3′	Delivery Aid	707.93	Order
	3' Cholesterol TEG	3′	Delivery Aid	755.97	Order
—	3' Palmitate C7	3′	Delivery Aid Hydrophobic	447.60	Order
	Nitroindole	5′int3′	Base Analogue	340.23	Order
	5' Cholesterol	5′	Delivery Aid	591.91	Order
	5' Cholesterol TEG	5′	Delivery Aid	681.89	Order
	5' Vinyl Phosphonate - 2'-OMe U	5′	Delivery Aid	396.19	Order
	7-deaza-8-aza dG	5′int3′	Base Analogue	329.21	Order
	2'-Deoxyadenosine	5′int3′	Standard Base	313.21	Order
—	3' Amino Serinol labelled with Methylene Blue	3′	Electrochemical Label	562.60	Order
—	Asymmetric Doubler	5′int3′	Dendrimer	352.32	Order
	B (C, G or T)	5′int3′wob	Wobble	307.53	Order
	2'-Deoxycytidine	5′int3′	Standard Base	289.18	Order
	cEt A	5′int3′	Ribose Modification	355.25	Order
	cEt G	5′int3′	Ribose Modification	371.25	Order
	cEt 5-Me-C	5′int3′	Ribose Modification	345.25	Order
	cEt T	5′int3′	Ribose Modification	346.23	Order
	D (A, G or T)	5′int3′wob	Wobble	315.54	Order
	Deoxyinosine	5′int3′	Base Analogue	314.20	Order
	Dithiol Serinol	5′int3′	Thiol	412.46	Order
	dK	5′int3′	Base Analogue	358.25	Order
	dP	5′int3′	Base Analogue	330.23	Order
	dR-GalNAc (alpha)	3′	Delivery Aid	508.56	Order
	DTPA	5′int3′	Thiol	—	Order
	2'-F-Arabino A	5′int3′	Ribose Modification	331.20	Order
	2'-F-Arabino C	5′int3′	Ribose Modification	307.17	Order
	2'-F-Arabino G	5′int3′	Ribose Modification	347.20	Order
	2'-F-Arabino T	5′int3′	Ribose Modification	322.19	Order
	2'-F-Arabino U	5′int3′	Ribose Modification	308.16	Order
	2'-Deoxyguanosine	5′int3′	Standard Base	329.21	Order
	GalNAc	5′3′	Delivery Aid	609.61	Order
	GNA A	5′int3′	Ribose Modification	271.17	Order
	GNA C	5′int3′	Ribose Modification	247.15	Order
	GNA G	5′int3′	Ribose Modification	287.17	Order
	GNA T	5′int3′	Ribose Modification	262.16	Order
	GNA U	5′int3′	Ribose Modification	248.13	Order
	H (A, C or T)	5′int3′wob	Wobble	302.20	Order
	internal Cholesterol TEG	int	Delivery Aid	755.97	Order
	Inverse dA	5′int3′	Reverse Backbone Linkage	313.21	Order
	Inverse dC	5′int3′	Reverse Backbone Linkage	289.18	Order
	Inverse dG	5′int3′	Reverse Backbone Linkage	329.21	Order
	Inverse dT	5′int3′	Reverse Backbone Linkage	304.19	Order
	K (G or T)	5′int3′wob	Wobble	316.70	Order
	LNA A	5′int3′	Ribose Modification	341.22	Order
	LNA G	5′int3′	Ribose Modification	357.22	Order
	LNA 5-Me-C	5′int3′	Ribose Modification	331.22	Order
	LNA T	5′int3′	Ribose Modification	332.20	Order
	M (A or C)	5′int3′wob	Wobble	301.20	Order
—	Amino C6 labelled with Methylene Blue	5′3′	Electrochemical Label	503.58	Order
	2' MOE 5-Me-C	5′int3′	Ribose Modification	377.29	Order
	2' MOE 5-Me-U	5′int3′	Ribose Modification	378.27	Order
	2' MOE A	5′int3′	Ribose Modification	387.29	Order
—	2' MOE C	5′int3′	Ribose Modification	363.26	Order
	2' MOE G	5′int3′	Ribose Modification	403.29	Order
—	2' MOE U	5′int3′	Ribose Modification	364.25	Order
	N (A, C, G or T)	5′int3′wob	Wobble	308.95	Order
	2′-O NMA 5-Me C	5′int3′	Ribose Modification	390.29	Order
	2′-O NMA A	5′int3′	Ribose Modification	400.29	Order
	2′-O NMA G	5′int3′	Ribose Modification	416.29	Order
	2′-O NMA T	5′int3′	Ribose Modification	391.27	Order
	Octyl Tocopherol TEG	5′int	Delivery Aid	698.91	Order
	Octyl Tocopherol C8	5′	Delivery Aid	620.90	Order
—	5' Palmitate	5′	Delivery Aid	417.57	Order
	Phosphate	5′3′	Phosphate	79.98	Order
	R (A or G)	5′int3′wob	Wobble	321.21	Order
	RNA A	5′int3′	RNA	329.21	Order
	RNA C	5′int3′	RNA	305.18	Order
	RNA G	5′int3′	RNA	345.21	Order
	RNA U	5′int3′	RNA	306.17	Order
	S (G or C)	5′int3′wob	Wobble	309.20	Order
—	Symmetric Doubler	5′int3′	Dendrimer	351.31	Order
	2'-Deoxythymidine	5′int3′	Standard Base	304.19	Order
	Trimethoxystilbene	5′	Cap	433.40	Order
	TNA A	5′int3′	Ribose Modification	299.18	Order
	TNA C	5′int3′	Ribose Modification	275.16	Order
	TNA G	5′int3′	Ribose Modification	315.18	Order
	TNA T	5′int3′	Ribose Modification	290.17	Order
	V (A, C or G)	5′int3′wob	Wobble	310.53	Order
	W (A or T)	5′int3′wob	Wobble	308.70	Order
	Y (C or T)	5′int3′wob	Wobble	296.69	Order
—	2'-OMe R (2'-OMe A or 2'-OMe G)	5′3′intwob	— RNA Wobble	351.24	Order
—	Amino C3 labelled with Digoxigenin	5′3′	—	680.78	Order
—	5' Amino TEG labelled with Digoxigenin	5′	—	798.91	Order