Fitusiran

Fitusiran (ALN-AT3SC) is a small interfering RNA compound designed to selectively bind to antithrombin (AT) messenger RNA in the liver, leading to decreased AT production. By doing so, Fitusiran enhances thrombin generation, making it a promising candidate for hemophilia research.


Cat. No.: EX-A12034	Purity: >98%

	Chemical structure of Fitusiran

For research only, Do not use for Human!

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Synonyms	SAR439774
Synonyms 2	ALN-AT3SC
CAS No.	1499251-18-1
Purity	>98%
Formula	C78H139N11O30
Mol Weight	1710.994
Color	White to off-white
State	Solid
Solubility	H2O : 50 mg/mL
Shelf Life	>3 years if stored properly
Storage	Powder 4°C, sealed storage, away from moisture; In solvent -20℃ 1 month;
Shipping	Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Reference:	[1]. Lu D, et al. Fitusiran: The first approved siRNA therapy for hemophilia via reducing plasma antithrombin levels. Drug Discov Ther. 2025;19(2):131-132. [2]. Srivastava A, et al. Fitusiran, an investigational siRNA therapeutic targeting antithrombin for the treatment of hemophilia: first results from a phase 3 study to evaluate efficacy and safety in people with hemophilia A or B without inhibitors (ATLAS-A/B)[J]. Blood, 2021, 138: LBA-3. [3]. Pasi KJ, et al. Targeting of antithrombin in hemophilia A or B with investigational siRNA therapeutic fitusiran-Results of the phase 1 inhibitor cohort. J Thromb Haemost. 2021;19(6):1436-1446.
CoA	CoA of Fitusiran

Smiles:	C[C@@H]1C[C@H](CN1C(=O)CCCCCCCCCCC(=O)NC(COCCC(=O)NCCCNC(=O)CCCCO[C@H]2[C@@H]([C@H]([C@H]([C@H](O2)CO)O)O)NC(=O)C)(COCCC(=O)NCCCNC(=O)CCCCO[C@H]3[C@@H]([C@H]([C@H]([C@H](O3)CO)O)O)NC(=O)C)COCCC(=O)NCCCNC(=O)CCCCO[C@H]4[C@@H]([C@H]([C@H]([C@H](O4)CO)O)O)NC


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