≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Namitecan is a potent topoisomerase I inhibitor, with antitumor property.
In Vitro
Namitecan and cetuximab cooperate in inhibiting EGFR expression. Namitecan induces a dose-dependent decrease in EGFR expression in the different cell lines. ST1968 induces a comparable level of apoptosis in A431 and A431/TPT cells with IC 50 of 0.21 and 0.29 μM. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
Namitecan (10 mg/kg) in combination with cetuximab (1 mg/mouse) induces synergistic antitumor effects in SCC models as a function of EGFR gene copy number . ST1968 (25 mg/kg) causes acceptable body weight loss and no toxic deaths. ST1968 produces a 100% complete response rate in the mice bearing the A431 tumor, and retains a relevant activity in the topotecan-resistant tumor. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Form:Solid
IC50& Target:Topoisomerase I
| Canonical Smiles | CCC1(C2=C(COC1=O)C(=O)N3CC4=C(C5=CC=CC=C5N=C4C3=C2)C=NOCCN)O |
|---|---|
| IUPAC Name | (19S)-10-[(E)-2-aminoethoxyiminomethyl]-19-ethyl-19-hydroxy-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2,4,6,8,10,15(20)-heptaene-14,18-dione |
| InChIKey | IBTISPLPBBHVSU-UVOOVGFISA-N |
| INCHI | 1S/C23H22N4O5/c1-2-23(30)17-9-19-20-15(11-27(19)21(28)16(17)12-31-22(23)29)14(10-25-32-8-7-24)13-5-3-4-6-18(13)26-20/h3-6,9-10,30H,2,7-8,11-12,24H2,1H3/b25-10+/t23-/m0/s1 |
| Isomeric SMILES | CC[C@@]1(C2=C(COC1=O)C(=O)N3CC4=C(C5=CC=CC=C5N=C4C3=C2)/C=N/OCCN)O |
| Alternate CAS | 372105-27-6 |
| PubChem CID | 10950142 |
| MeSH Entry Terms | namitecan;ST 1968;ST-1968;ST1968 |
| Molecular Weight | 434.44 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
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View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Alkaloids and derivatives |
| Class | Camptothecins |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Camptothecins |
| Alternative Parents | Quinolines and derivatives Pyranopyridines Pyridinones Benzenoids Tertiary alcohols Heteroaromatic compounds Amino acids and derivatives Carboxylic acid esters Lactams Lactones Azacyclic compounds Oxacyclic compounds Monocarboxylic acids and derivatives Hydrocarbon derivatives Organic oxides Carbonyl compounds Monoalkylamines |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Camptothecin - Pyranopyridine - Quinoline - Pyridinone - Pyridine - Benzenoid - Heteroaromatic compound - Tertiary alcohol - Amino acid or derivatives - Carboxylic acid ester - Lactam - Lactone - Carboxylic acid derivative - Oxacycle - Monocarboxylic acid or derivatives - Azacycle - Organoheterocyclic compound - Organic nitrogen compound - Primary aliphatic amine - Amine - Hydrocarbon derivative - Organic oxide - Alcohol - Carbonyl group - Organonitrogen compound - Organooxygen compound - Primary amine - Organic oxygen compound - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as camptothecins. These are heterocyclic compounds comprising a planar pentacyclic ring structure, that includes a pyrrolo[3,4-beta]-quinoline moiety (rings A, B and C), conjugated pyridone moiety (ring D) and one chiral center at position 20 within the alpha-hydroxy lactone ring with (S) configuration (the E-ring). |
| External Descriptors | Not available |
| Solubility | DMSO : 250 mg/mL (575.45 mM; Need ultrasonic) |
|---|---|
| Molecular Weight | 434.400 g/mol |
| XLogP3 | 0.100 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 8 |
| Rotatable Bond Count | 5 |
| Exact Mass | 434.159 Da |
| Monoisotopic Mass | 434.159 Da |
| Topological Polar Surface Area | 127.000 Ų |
| Heavy Atom Count | 32 |
| Formal Charge | 0 |
| Complexity | 899.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 1 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 1 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 1 |
| Covalently-Bonded Unit Count | 1 |
