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Yield Specifications

To determine the scale for synthesis, the tables below detail the guaranteed minimum yield for various categories of oligo synthesis. Oligo synthesis often results in more material than listed here, however if more than the minimum yield will be required for your experiments then we highly recommend that a higher synthesis scale be ordered. More complex oligos which are not detailed below are highly dependent on a variety of oligos and/or modification properties and, for this reason, specific yields are not guaranteed.

Minimum yields are guaranteed for both standard and Express Oligos®. Yields are given in units of optical density (OD). For more information, see Calculations or contact our Technical Support team.


For additional information on which purity level is recommended for your specific application, please refer to our Oligo Applications Guide.



Salt Free

Salt-Free is our basic oligo purity option and is appropriate for most unmodified oligos used in many applications, including routine PCR, microarray fabrication, and blotting.

Guaranteed minimum yield for Salt-Free purity Standard and Express Oligos
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-90.50.51.04.01490
10-141.02.03.07.024160
15-192.03.04.01136240
20-452.03.06.01548320
46-602.03.01235100740
61-69NANA1245148980
70-80NANA1445148980
81-90NANA1429148NA
91-100NANANA29148NA
101-125NANANA29148NA



HPSF® Purity

High purity salt free (HPSF) purification is a high-performance, high-throughput purification that efficiently removes most N-1 and other truncated sequences created during oligo synthesis. When using unmodified oligos in more sensitive applications such as qPCR or DNA sequencing, HPSF delivers excellent yields and improved purity.

HPSF is available and recommended for oligos containing:
  • IUB Wobbles (degenerate nucleotide sites)
  • 5' Amino C6 Linker [Amino C6]
  • 5' Phosphate [Phos]
  • 5' Biotin-TEG [BioTEG] *
* 90 bases maximum length

Guaranteed minimum yields (OD) for HPSF purity standard and modified oligos (as listed above)
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-9NANANANANANA
10-140.50.51.52.05.0NA
15-190.51.03.05.010NA
20-451.01.04.01035NA
46-601.01.04.01035NA
61-69NANA3.01025NA
70-80NANA3.01025NA
81-90NANA3.05.020NA
91-100NANANA5.020NA
101-125NANANANANANA



QuickLC Purity

QuickLC purification: Twice the Yield in Half the Time of HPLC; Same Purity—Guaranteed!

QuickLC purification is a proprietary purification process that offers purity levels of 85% and above*—equal to or greater than the levels obtained by HPLC purification. Extensive testing in end user laboratories has proven that oligos purified with the QuickLC method perform identically to oligos that go through the older HPLC process. If you believe that your QuickLC purity oligos are not performing as good or better than HPLC-purified oligos, call us and we’ll make it right.

The QuickLC process removes most N-1 and other truncated failure sequences created during synthesis and achieves purity levels of 85% and above*. Selection of QuickLC purification ensures delivery of your oligo at HPLC-grade purity; typically within 2 days!

QuickLC is highly recommended for oligos needing HPLC-grade purity or when higher than typical HPLC yields are required for your experiment.

Guaranteed minimum yields (OD) for QuickLC purity standard oligos
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-9NANANANANANA
10-14NANA1.02.04.0NA
15-19NANA2.04.020NA
20-45NANA2.04.030NA
46-60NANA2.04.030NA
61-69NANA2.04.020NA
70-80NANA2.04.020NA
81-90NANA2.04.020NA
91-100NANANA4.020NA
101-125NANANANANANA

Yields are also guaranteed for QuickLC purified oligos containing the following modifications with no additional modification:
  • IUB Wobbles (degenerate nucleotide sites)
  • 5’ 6-FAM [6-FAM]
  • 5' Amino C6 Linker [Amino C6]
  • 5' Phosphate [Phos]
  • 5' Biotin-TEG [BioTEG]
Guaranteed minimum yields (OD) for QuickLC purity modified oligos (as listed above)
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-9NANANANANANA
10-14NANA0.51.02.0NA
15-19NANA1.02.010NA
20-45NANA1.02.030NA
46-60NANA1.02.030NA
61-69NANA1.02.020NA
70-80NANA1.02.020NA
81-90NANA1.02.020NA
91-100NANANA2.020NA
101-125NANANANANANA




HPLC Purity

Standard High Performance Liquid Chromatography (HPLC) purification is recommended for oligos that require additional purification, such as dual-labeled probes, Molecular Beacons, and most modified oligos that cannot be purified by our QuickLC purification method.

HPLC purification removes most N-1 and other truncated failure sequences created during synthesis and achieves purity levels of 85% and above*. Oligos purified by HPLC typically ship within 5 days. When faster delivery times are critical, Eurofins MWG Operon encourages you to consider the QuickLC purification, where it is offered for you oligo type.

Our oligo purification experts will determine and employ the optimum HPLC technique for your specific oligos and select only the fractions containing the highest purity for delivery to your lab. The techniques employed include (1) reversed-phase HPLC purification that separates oligos on the basis of hydrophobicity; (2) ion exchange HPLC that separates oligos on the basis of charge.

Guaranteed minimum yields (OD) for HPLC purity standard oligos
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-9NANA0.50.52.010
10-14NANA0.51.02.015
15-19NANA1.02.01075
20-45NANA1.02.015100
46-60NANA1.02.015100
61-69NANA1.02.01075
70-80NANA1.02.01075
81-90NANA1.02.01075
91-100NANANA2.01075
101-125NANANANANANA

HPLC purification is also available for oligos with all modifications listed on our web site, except for cholesterol modifications. Yields are guaranteed for HPLC-purified oligos containing the following single modifications (no multiple or additional modifications)
  • IUB Wobbles (degenerate nucleotide sites)
  • 5’ Amino C6 Linker[Amino C6]
  • 5’ Phosphate [Phos]
  • 5’ Biotin-TEG [BioTEG] * +
  • 5’ 6-FAM [6-FAM] *
  • 5’ HEX [5HEX] *
  • 5’ TET [5TET] *
  • 5’ Cy5 [Cy5] *
  • 5’ Cy3 [Cy3] *
* 90 base maximum length
+ Not available in the 50 nmol scale.

Guaranteed minimum yields (OD) for HPLC purity modified oligos (as listed above)
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-9NANA0.50.51.05.0
10-14NANA0.50.51.010
15-19NANA0.51.05.010
20-45NANA0.51.01020
46-60NANA0.51.01020
61-69NANA0.50.52.010
70-80NANA0.50.52.010
81-90NANA0.50.51.05.0
91-100NANANA0.51.05.0
101-125NANANANANANA

Yields are also guaranteed for the following HPLC purity dual-labeled probes and Molecular Beacons used in qPCR applications.
Description Designator
3' BHQ 1 + 5' HEX BHQ1a-5HEX
3' BHQ 1 + 5' TET BHQ1a-5TET
3' BHQ 1 + 5' 6-FAM BHQ1a-6FAM
3' BHQ 1 + 5' JOE ^ BHQ1a-JOE
3' BHQ 2 + 5' HEX BHQ2a-5HEX
3' BHQ 2 + 5' Cy3 BHQ2a-Cy3
3' BHQ 2 + 5' Cy5 BHQ2a-Cy5
3' BHQ 2 + 5' ROX ^ BHQ2a-ROX
3' BHQ 2 + 5' TAMRA BHQ2a-TAMRA
3' BHQ 2 + 5' Texas Red ^ BHQ2a-TxRed
3' TAMRA + 5' 6-FAM TAMRA-6-FAM
3' TAMRA + 5' TET TAMRA-5TET
3' TAMRA + 5' HEX TAMRA-5HEX
Mol. Beacon, 3' DABCYL + 5' 6-FAM MB-6-FAM
Mol. Beacon, 3' DABCYL + 5' TET MB-5TET
Mol. Beacon, 3' DABCYL + 5' HEX MB-5HEX
Mol. Beacon, 3' DABCYL + 5' Cy5 MB-Cy5
Mol. Beacon, 3' DABCYL + 5' Cy3 MB-Cy3
Mol. Beacon, 3' DABCYL + 5' TAMRA MB-TAMRA
Mol. Beacon, 3' DABCYL + 5' ROX MB-ROX
Mol. Beacon, 3' DABCYL + 5' Texas Red MB-TxRed

^ Available in 200 nmol and 1 umol scales only.

Guaranteed minimum yields for HPLC purity dual-labeled qPCR Probes (as listed above)
Oligo length 10 nmol 50 nmol 200 nmol / 0.2 µmol 1 µmol 10 µmol
15-40 NA 1 OD 2 OD 5 OD NA
15-40 NA 4 nmol 8 nmol 20 nmol NA



2-Step Purity – Reversed Phase/Ion Exchange

This 2-step purification process uses reversed-phase chromatography followed by anion exchange purification, allowing a two-dimensional purification based on both hydrophobicity and charge. This purity level is highly recommended for all oligos 70 bases or longer.

Guaranteed minimum yields (OD) for Two-Step HPLC purity standard oligos
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-9NANANA0.51.010
10-14NANANA0.51.010
15-19NANANA1.05.015
20-45NANANA1.05.015
46-60NANANA1.05.015
61-69NANANA1.05.015
70-80NANANA1.05.015
81-90NANANA0.52.010
91-100NANANA0.52.010
101-125NANANA0.52.0NA



PAGE Purity

Polyacrylamide gel electrophoresis (PAGE) purification is recommended for oligos that require the highest level of purification, and achieves purity levels for unmodified oligos of 90% and above*. Although PAGE purification achieves the highest purity levels available, recovery of the oligo from the matrix is an inefficient process and results in lower final yields. Thus PAGE purification is not recommended as a routine technique. PAGE purification also cannot be used for oligos shorter than 20 bases.

PAGE separates oligos on the basis of molecular weight and is performed on a denaturing polyacrylamide gel prepared with stock solutions of acrylamide, urea, and TBE buffer. The desired oligo band is detected through UV shadowing and the full-length product is excised and eluted from the gel.

Guaranteed minimum yields (OD) for PAGE purity standard oligos
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-9NANANANANANA
10-14NANANANANANA
15-19NANANANANANA
20-45NANA1.02.010NA
46-60NANA0.52.04.0NA
61-69NANA0.52.04.0NA
70-80NANA0.51.04.0NA
81-90NANA0.51.02.0NA
91-100NANANA0.52.0NA
101-125NANANA0.51.0NA

PAGE purification is available for oligos with all modifications listed on our web site, except for wobbles. Yields are also guaranteed for PAGE-purity oligos containing the following single modifications (no multiple or additional modifications)
  • 5’ Amino C6 Linker [Amino C6]
  • 5’ Phosphate [Phos]
  • 5’ Biotin-TEG [BioTEG] *
  • 5’ 6-Fam [6-FAM]
  • 5’ HEX [5HEX] *
  • 5’ TET [5TET] *
  • 5’ Cy5 [Cy5] *
  • 5’ Cy3 [Cy3] *
* 90 base maximum length

Guaranteed minimum yields (OD) for PAGE purity modified oligos (as listed above)
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-9NANANANANANA
10-14NANANANANANA
15-19NANANANANANA
20-45NANA0.51.05.0NA
46-60NANA0.51.05.0NA
61-69NANA0.51.05.0NA
70-80NANA0.51.05.0NA
81-90NANA0.50.51.0NA
91-100NANANA0.51.0NA
101-125NANANA0.50.5NA



2-Step Purity - Reversed Phase/PAGE

This 2-step purification process uses reversed-phase (RP) chromatography followed by PAGE, allowing a two-dimensional purification based on hydrophobicity and molecular weight. This purification level is highly recommended for oligos 70 bases or longer that are used in applications that require PAGE purification. 2-step RP/PAGE purification is also recommended for oligos used in applications that require the highest PAGE purity, such as crystallography and gel-shift assays.

Guaranteed minimum yields (OD) for 2-Step PAGE purity standard oligos
Oligo length10 nmole25 nmole50 nmole0.2 µmole1.0 µmole10 µmole
6-9NANANANANANA
10-14NANANANANANA
15-19NANANANANANA
20-45NANANA1.02.0NA
46-60NANANA1.02.0NA
61-69NANANA1.02.0NA
70-80NANANA0.51.0NA
81-90NANANA0.50.5NA
91-100NANANA0.50.5NA
101-125NANANA0.50.5NA

*We cannot guarantee the purity of oligos longer than 70 bases. For oligos longer than 70 bases, Eurofins MWG Operon strongly recommends one of our 2-Step Purity options.

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Eurofins MWG Operon. All rights reserved.
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