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Tofersen (Synonyms: BIIB067; ISIS-SOD1Rx)

Catalog No.GC64897 Copy One-Click Copy Product Info

Tofersen (BIIB067) is an antisense oligonucleotide that mediates RNase H-dependent degradation of superoxide dismutase 1 (SOD1) mRNA to reduce the synthesis of SOD1 protein.

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Tofersen Chemical Structure

Cas No.: 2088232-70-4

Size Price Stock Qty
1mg
$130.00
In stock
5mg
$363.00
In stock

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Sample solution is provided at 25 µL, 10mM.



Description of Tofersen

Tofersen (BIIB067) is an antisense oligonucleotide that mediates RNase H-dependent degradation of superoxide dismutase 1 (SOD1) mRNA to reduce the synthesis of SOD1 protein. Tofersen can be used for the research of amyotrophic lateral sclerosis (ALS)[1].

Tofersen targets the SOD1 mRNA using antisense oligonucleotides (ASOs) that bind to the SOD1 mRNA by Watson-Crick base pairing. Tofersen activates RNase H1 that destroys the targeted RNA[2].

[1]. Miller T, et, al. Phase 1-2 Trial of Antisense Oligonucleotide Tofersen for SOD1 ALS. N Engl J Med. 2020 Jul 9;383(2):109-119. [2]. McCampbell A, et, al. Antisense oligonucleotides extend survival and reverse decrement in muscle response in ALS models. J Clin Invest. 2018 Aug 1;128(8):3558-3567.

Chemical Properties of Tofersen

Cas No. 2088232-70-4 SDF
Synonyms BIIB067; ISIS-SOD1Rx
Formula M.Wt 7128
Solubility Water : 100 mg/mL (14.03 mM; Need ultrasonic) Storage -20°C, stored under nitrogen
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table of Tofersen

Prepare stock solution
1 mg 5 mg 10 mg
1 mM 140.3 μL 701.5 μL 1.4029 mL
5 mM 28.1 μL 140.3 μL 280.6 μL
10 mM 14 μL 70.1 μL 140.3 μL
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In vivo Formulation Calculator (Clear solution) of Tofersen

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

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Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL saline, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.

Product Documents

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Reviews

Review for Tofersen

Average Rating: 5 ★★★★★ (Based on Reviews and 30 reference(s) in Google Scholar.)

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