4SC-203

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 205802

CAS#: 895533-09-2

Description: 4SC-203 is a multikinase inhibitor with potential antineoplastic activity. Multikinase inhibitor 4SC-203 selectively inhibits FMS-related tyrosine kinase 3 (FLT3/STK1), FLT3 mutated forms, and vascular endothelial growth factor receptors (VEGFRs). This may result in the inhibition of angiogenesis and cell proliferation in tumor cells in which these kinases are upregulated. FLT3 (FLK2), a class III tyrosine kinase receptor, is overexpressed or mutated in most B lineage and acute myeloid leukemias (AML). VEGFRs, tyrosine kinase receptors, are overexpressed in a variety of tumor cell types and play key roles in angiogenesis.


Chemical Structure

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4SC-203
CAS# 895533-09-2

Theoretical Analysis

MedKoo Cat#: 205802
Name: 4SC-203
CAS#: 895533-09-2
Chemical Formula: C33H38N8O4S
Exact Mass: 642.27367
Molecular Weight: 642.77
Elemental Analysis: C, 61.66; H, 5.96; N, 17.43; O, 9.96; S, 4.99

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales @medkoo.com or click below button.
Note: Price will be listed if it is available in the future.

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Synonym: 4SC203; 4SC-203; 4SC 203; SC71710; SC-71710; SC 71710.

IUPAC/Chemical Name: 1-(2-methoxy-5-methylphenyl)-3-(6-((6-methoxy-7-(3-(4-methylpiperazin-1-yl)propoxy)quinazolin-4-yl)amino)benzo[d]thiazol-2-yl)urea

InChi Key: MAFACRSJGNJHCF-UHFFFAOYSA-N

InChi Code: InChI=1S/C33H38N8O4S/c1-21-6-9-27(43-3)26(16-21)37-32(42)39-33-38-24-8-7-22(17-30(24)46-33)36-31-23-18-28(44-4)29(19-25(23)34-20-35-31)45-15-5-10-41-13-11-40(2)12-14-41/h6-9,16-20H,5,10-15H2,1-4H3,(H,34,35,36)(H2,37,38,39,42)

SMILES Code: O=C(NC1=NC2=CC=C(NC3=C4C=C(OC)C(OCCCN5CCN(C)CC5)=CC4=NC=N3)C=C2S1)NC6=CC(C)=CC=C6OC

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: 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.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 642.77 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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Additional Information

4SC-203 is a novel multi-target kinase inhibitor. In preclinical testing the compound has shown unique and strong selectivity against a set of kinases including FLT3, FLT3 mutants and VEGF-receptors. FLT3 is involved in the growth and maturation of normal blood cells. With the inhibition of VEGF receptor tyrosine kinases, 4SC-203 may also inhibit angiogenic processes – i.e. the formation of vascular structures that provide nutrition for tumours enabling them to grow rapidly – and could therefore also be applicable in solid cancer types. 4SC-203 was jointly developed with ProQinase GmbH, a company based in Freiburg, Germany. The molecule has successfully completed a randomised, double-blind, placebocontrolled Phase I study in healthy volunteers which demonstrated the safety, tolerability and pharmacokinetics of this intravenously delivered compound. (source: http://www.4sc.de/product-pipeline/clinical/4SC-203).