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BSI is committed to long-term, continuous improvement, including the incorporation of modifications and minor bases. If a modification that you desire is not listed below, please contact us. It may be available as a product under development, or we may be able to add it to our list of R&D projects. Your feedback will assist BSI in ensuring that the modifications we offer best address our customers' needs.

Don't see the modification you are interested in? Just ask — in most cases we can accommodate your request. And if you require help in choosing the optimal modification, you can consult the experts.

Modification is an additional charge to the synthesis.

Internal Modifications
Synthesis Scales: Mod Code 100 nmole 0.25 µmol 1.0 µmol >5.0 µmol
2,6-Diaminopurine DAP $250.00 $250.00 Inquire Inquire
2'-Amino-uridine 2'-N-U $150.00 $200.00 $300.00 Inquire
2'-Deoxy-uridine dU $20.00 $30.00 $40.00 Inquire
2'-Fluoro-adenosine 2'-F-A $100.00 $200.00 $260.00 Inquire
2'-Fluoro-cytidine 2'-F-C $100.00 $200.00 $260.00 Inquire
2'-Fluoro-acetyl-cytidine 2'-F-Ac-C $100.00 $200.00 $260.00 Inquire
2'-Fluoro-guanosine 2'-F-G $100.00 $200.00 $260.00 Inquire
2'-Fluoro-uridine 2'-F-U $100.00 $200.00 $330.00 Inquire
2-Aminopurine 2AP $180.00 $180.00 $250.00 Inquire
4-Thio-uridine 4-S-U $250.00 $450.00 Inquire Inquire
5-Bromo-Uridine U[5Br] $100.00 $200.00 $300.00 Inquire
5-Fluoro-uridine U[5F] $190.00 $350.00 $350.00 Inquire
5-Iodo-uridine U[5I] $120.00 $200.00 $250.00 Inquire
5-Methyl-cytidine 5-M-C $55.00 $75.00 $90.00 Inquire
2'-Amino-cytidine 2'-N-C $150.00 $200.00 $300.00 Inquire
Inosine I $10.00 $10.00 $25.00 Inquire
N3-Methyl-uridine 3-M-U $100.00 $100.00 $250.00 Inquire
Purine ribonucleoside Pu $250.00 $250.00 Inquire Inquire
Ribo-thymidine rT $100.00 $100.00 $180.00 Inquire
5-Amino-allyl-uridine N/A $175.00 $170.00 $250.00 Inquire
Deoxy-abasic N/A $125.00 $200.00 $250.00 Inquire
N6, N6-Dimethyl-adenosine N/A $125.00 $125.00 $225.00 Inquire
C3 Spacer SpC3 $40.00 $50.00 $70.00 Inquire
C9 Spacer SpC9 $40.00 $50.00 $70.00 Inquire
C18 Spacer SpC18 $50.00 $60.00 $90.00 Inquire
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5'Modifications
Synthesis Scales: Mod Code 100 nmole 0.25 µmol 1.0 µmol >5.0 µmol
5'-TAMRA-hexyl linker TAM $250.00 $250.00 $300.00 Inquire
5'-Phosphate 5'-P $40.00 $40.00 $50.00 Inquire
5'-Amino,(6-carbon)linker N6 $45.00 $45.00 $70.00 Inquire
5'-Amino,(12-carbon)linker N12 $75.00 $75.00 Inquire Inquire
5'Amino Modified C6 dT N6dT $170.00 $170.00 $250.00 Inquire
Uni-Link Amino Modifier UniAmM $105.00 $105.00 $165.00 Inquire
5'-Biotin Bi $70.00 $70.00 $125.00 Inquire
5'-Photocleavable Biotin 5'-PC-Bi $350.00 $350.00 $450.00 Inquire
5'-Fluorescein FI $125.00 $125.00 $225.00 Inquire
5'-Tetrachloro-fluorescein TET $125.00 $125.00 $225.00 Inquire
5'-Pyrene 5'-Pyr $225.00 $225.00 $325.00 Inquire
5'-Thiol 5'-Th $175.00 $175.00 $275.00 Inquire
5'-Dabcyl Dabcyl $175.00 $175.00 $275.00 Inquire
5'-Cholesterol Chl $200.00 $200.00 $300.00 Inquire
5'-Cy3TM Cy3 $150.00 $150.00 $200.00 Inquire
C9 Spacer SpC9 $40.00 $50.00 $70.00 Inquire
C18 Spacer SpC18 $50.00 $60.00 $90.00 Inquire
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Degenerate Bases
Synthesis Scales: Mod Code 100 nmole 0.25 µmol 1.0 µmol >5.0 µmol
Mix site: rA, rG, rC and rU rN $50.00 + $7.50/site $60.00 + 12.50/site $75.00 + 16.50/site Inquire
Mix site: rA and rU rW $50.00 + $7.50/site $60.00 + $12.50/site $75.00 + $16.50/site Inquire
Mix site: rG and rC rS $50.00 + $7.50/site $60.00 + $12.50/site $75.00 + $16.50/site Inquire
Mix site: dA, dG, dC and dT dN $50.00 + $7.50/site $60.00 + $12.50/site $75.00 + $16.50/site Inquire
Mix site: dA and dT dW $50.00 + $7.50/site $60.00 + $12.50/site $75.00 + $16.50/site Inquire
Mix site: dC and dG dS $50.00 + $7.50/site $60.00 + $12.50/site $75.00 + $16.50/site Inquire
Mix site: mA, mG, mC and mU mN $50.00 + $7.50/site $60.00 + $12.50/site $75.00 + $16.50/site Inquire
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3'Modifications
Synthesis Scales: Mod Code 100 nmole 0.25 µmol 1.0 µmol >5.0 µmol
3'-Biotin 3'-Bi $200.00 $200.00 $300.00 Inquire
3'-Inverted abasic b $95.00 $95.00 $175.00 Inquire
3'-Inverted deoxythymidine idT $95.00 $95.00 $175.00 Inquire
3'-Puromycin Pmn $75.00 $80.00 $120.00 Inquire
3'Terminal dideoxy-cytidine ddC $110.00 $110.00 $210.00 Inquire
3'-TAMRA 3'-TAM $275.00 $275.00 $375.00 Inquire
3'-Fluorescein 3'-Fl $125.00 $125.00 $225.00 Inquire
3'Terminal deoxy-guanosine 3'-dG $110.00 $110.00 $210.00 Inquire
3'-Cholesterol 3'Chl $200.00 $200.00 $300.00 Inquire
3'-Amino Modifier (6 atom) N6-3' $75.00 $75.00 $175.00 Inquire
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