By using Invitrogen’s award winning BLOCK-iT™ RNAi Designer, you can create custom Stealth RNAi™ siRNA sequences for any organism. The BLOCK-iT™ RNAi Designer can design custom Stealth RNAi™ siRNA duplexes based on a cDNA sequence, GenBank accession number, or by converting your existing siRNA to a Stealth RNAi™ siRNA duplex.

Custom Stealth RNAi™ siRNA duplexes provide

  • All of the advantages of Stealth RNAi™ siRNA chemistry
  • Custom design of Stealth RNAi™ siRNA duplexes and controls for any organism
  • The ability to convert your existing siRNA sequences to Stealth RNAi™ siRNA

Custom design gives more flexibility

If you need a synthetic RNAi duplex to study an organism other than human, mouse or rat, Custom Stealth RNAi™ siRNA is the perfect option.  If you need more than 3 duplexes for your target gene, then Custom Stealth RNAi™ siRNA can help design additional sequences not found in the Stealth™ Select 3 Sets.  The BLOCK-iT™ RNAi designer can also help design scrambled controls for each of your Custom Stealth RNAi™ siRNA sequences.

Ordering information

For your convenience, Custom Stealth RNAi™ siRNA can be ordered in 4 different synthesis scales.

Delivered Amount Price Turnaround time  
20 nmole annealed Stealth RNAi™ siRNA (322µg)Contact Us≤ 7 business days 
80 nmole annealed Stealth RNAi™ siRNA (1.3mg)Contact Us≤ 7 business days 
1.0 µmole annealed Stealth RNAi™ siRNA (16.1mg)Contact Us≤ 30 business days 
1.7 µmole annealed Stealth RNAi™ siRNA (27.4 mg)Contact Us≤ 30 business days 

To design and order Custom Stealth RNAi™ siRNA, please visit the BLOCK-iT™ RNAi Designer.  Custom Stealth RNAi™ siRNA can also be ordered by email.

Guarantee: The BLOCK-iT™ RNAi Designer is such an effective tool for the design of Custom Stealth RNAi™ siRNA de novo, that if you order the three best Stealth RNAi™ siRNA sequences designed by the BLOCK-iT™ RNAi Designer, we guarantee that at least two out of three will give greater than 70% knockdown at the mRNA level, given that the transfection efficiency in your experiment is at least 80%.

*Please contact Invitrogen Technical Services to take advantage of this offer. Please be prepared to fax or email your order reference number, oligonucleotide sequences and data showing your transfection efficiency and knockdown. This offer is good for one free duplex per target.