Build an order

Priced as you configure

Primers & Probes PCR, sequencing, cloning and qPCR, including dual-labeled and double-quenched hydrolysis probes. miRNA Mimics, inhibitors and matched negative controls across the miRBase catalogue. CRISPR Guides crRNA, tracrRNA and non-targeting controls, chemically synthesised. RNAi & RNA siRNA duplexes, modified RNA oligos and matched controls.

Larger builds

Gene Synthesis Whole genes synthesised and cloned into the vector you name, delivered as a sequence-verified construct. Quoted per project. PCR Products Linear double-stranded DNA to your exact sequence — no cloning, no vector. Made to length. NGS Oligos & Pools Adapter and index primers, hybridisation-capture probes and multiplex PCR panels — single tubes or pools of 3 to 10,000 oligos. Quoted per project. IVD-grade Oligos Diagnostic-grade primers, hydrolysis probes and double-quenched probes, made on our manufacturing partner’s cleanroom line to a tightened specification. Quoted per project.

Other ways in

Order by geneBy applicationModification catalogue

Paste a sequence and the price moves with every change. No account, no quotation step.

Build an order

Company

Company overviewAbout OligoDirectWho you are buying fromTerms of salePrivacy

Who you buy from

An American brand, priced and invoiced in USD.

Sold and invoiced by SINO GENOMICS TECHNOLOGY LIMITED, Hong Kong.

Support

QC, mass spec and COAShipping, lead times and customsStorage, resuspension and handlingSequence confidentialityFree design helpAsk a questionTrack an order

Every order carries

Your price before you commit

MS and COA with every order

Sequences used for your order only

Remake or refund on failed QC

Build an order Your order
Specimen. This is what a released record looks like. The order, the sequences and every number on it are made up for the purpose of showing the format — the sequence used is the public M13 forward primer, not anyone's order. Look up a real order.

Released · all specifications met

Certificate of analysis

Issued by OligoDirect against our own release specification. Every oligo on this order carries its mass against theoretical, the deviation, and the delivered amount in both OD and nmol — item by item, not one pass line for the whole order.

Order
OD-SPECIMEN
Items
3 oligos
Analysed
2026-08-19
Released
2026-08-20
Form received
Lyophilised
Storage
Store at −20 °C, protected from light
Transport
Shipped at ambient temperature; lyophilised and stable in transit
Shelf life
12 months from synthesis (conservative)
Report
COA-SPECIMEN rev 1

Results

Sequences are hidden by default and never appear in a public link.
ItemSequenceLengthTheoreticalMeasured DeviationYield deliveredPurityResult
M13 forward primer ••••••••••••••••• 17 5228.47 5228.89 +0.008% 31.4 nmol
6.24 OD · 1 OD = 5.03 nmol		 not ordered pass
M13 reverse primer ••••••••••••••••• 17 5212.47 5211.90 -0.011% 28.9 nmol
5.84 OD · 1 OD = 4.94 nmol		 not ordered pass
Example probe template ••••••••••••••••••••• 21 6470.28 6471.64 +0.021% 12.6 nmol
3.00 OD · 1 OD = 4.19 nmol		 not ordered pass

Specification applied

Identity — ESI-MSwithin ±0.1% of theoretical mass
Yield — A260stated in both OD (as ordered) and nmol, within a ±15% quantitation tolerance
Purity — UPLC or CEnot ordered · can be added per oligo in the order builder
Endotoxin / sterilitynot applicable to this product

The mass spectrum is included at no charge on every order. A purity report is the one part of this page you have to ask for.

Method and release

IdentityESI-MS, deconvoluted
Acceptance limit|measured − theoretical| ≤ 0.1%
QuantitationA260, extinction coefficient from base composition
Conversionnmol = A260 units ÷ ε260 × 106, ε260 summed over the bases of your sequence (A 15,230 · C 7,470 · G 11,810 · T 9,260) — not a flat 33 µg/OD. A nearest-neighbour calculator gives a DNA value about 10–15% lower, so its nmol figure comes out correspondingly higher.
Sample stateLyophilised

Checked by

OligoDirect

Against the release specification

Released by

OligoDirect

Owner of the release specification

SINO GENOMICS TECHNOLOGY LIMITED. Access to this record is tied to the order. It is not a public URL, so your sequences stay confidential. Questions about this report: support@oligodirect.com, quoting COA-SPECIMEN.

Help

OligoDirect support

Ask a person

Write a line and a person answers — normally within one business day. No bots, no ticket queue. The reply waits for you here on the site, not in your inbox: come back to any page and this panel will tell you.

Track an order Design or quotation Policies

Talked to us before? Open that conversation.

Prefer your own mail client? support@oligodirect.com reaches the same people.