1. Cell Cycle/DNA Damage
  2. SRPK
    Virus Protease
  3. SRPIN340

SRPIN340 (Synonyms: SRPK inhibitor)

Cat. No.: HY-13949 Purity: 99.99%
Handling Instructions

SRPIN340 is an ATP-competitive serine-arginine-rich protein kinase (SRPK) inhibitor, with a Ki of 0.89 μM for SRPK1.

For research use only. We do not sell to patients.

SRPIN340 Chemical Structure

SRPIN340 Chemical Structure

CAS No. : 218156-96-8

Size Price Stock Quantity
Free Sample (0.5-1 mg)   Apply now  
10 mM * 1 mL in DMSO USD 79 In-stock
Estimated Time of Arrival: December 31
5 mg USD 72 In-stock
Estimated Time of Arrival: December 31
10 mg USD 120 In-stock
Estimated Time of Arrival: December 31
50 mg USD 408 In-stock
Estimated Time of Arrival: December 31
100 mg USD 528 In-stock
Estimated Time of Arrival: December 31
200 mg   Get quote  
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Customer Review

Based on 3 publication(s) in Google Scholar

Top Publications Citing Use of Products

    SRPIN340 purchased from MCE. Usage Cited in: Biochem Biophys Res Commun. 2019 Feb 26;510(1):97-103. 

    Bcl-2 protein expression and cleaved caspase-3 protein expression are analyzed by Western blot with or without the treatment of SRPIN340.
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review


    SRPIN340 is an ATP-competitive serine-arginine-rich protein kinase (SRPK) inhibitor, with a Ki of 0.89 μM for SRPK1.

    IC50 & Target

    Ki: 0.89 μM (SRPK1)[1]

    In Vitro

    SRPIN340 is a serine-arginine-rich protein kinase (SRPK) inhibitor, with a Ki of 0.89 μM for SRPK1. SRPIN340 also inhibits SRPK2, but shows no significant inhibition on other SRPK, such as Clk1 and Clk4. SRPIN340 promotes degradation of SRp75, which is necessary for HIV expression. SRPIN340 suppresses the propagation of Sindbis virus (IC50, 60 μM) as well as severe acute respiratory syndrome virus[1]. SRPIN340 shows inhibitory effect on leukemia cell lines, such as AML HL60, ALL-T Molt4 and Jurkat, with IC50s of 44.7 μM, 92.2 μM and 82.3 μM, respectively[2].

    Molecular Weight




    CAS No.





    Room temperature in continental US; may vary elsewhere.

    Powder -20°C 3 years
      4°C 2 years
    In solvent -80°C 6 months
      -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 42 mg/mL (120.22 mM)

    *"≥" means soluble, but saturation unknown.

    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.8625 mL 14.3123 mL 28.6246 mL
    5 mM 0.5725 mL 2.8625 mL 5.7249 mL
    10 mM 0.2862 mL 1.4312 mL 2.8625 mL
    *Please refer to the solubility information to select the appropriate solvent.
    In Vivo:
    • 1.

      Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

      Solubility: ≥ 2.5 mg/mL (7.16 mM); Clear solution

    *All of the co-solvents are provided by MCE.
    Cell Assay

    Leukemic cells (5 × 104 cells/well) and isolated PBMCs (8 × 104 cells/well) are seeded in 96-well plates. Each well contained 100 μL of complete RPMI medium and 100 μL of SRPIN340 solution at different concentrations. The compound is diluted in RPMI medium with 10% fetal bovine serum and 0.4% DMSO (v/v). After 48 h of culture, MTT (5 mg/mL) is added to the wells (3 h, 37°C). The plates are centrifuged at room temperature for 30 min 500 ×g, followed by the removal of the MTT solution and the addition of 100 μL/well of DMSO to solubilize the formazan. Absorbance is measured at 540 nm in a microplate reader. Each experimental procedure is performed in triplicate[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.


    Purity: 99.99%

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    SRPIN340SRPK inhibitorSRPIN 340SRPIN-340SRPKVirus ProteaseSerine-arginine protein kinasesInhibitorinhibitorinhibit

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