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

MedKoo CAT#: 406542

CAS#: 868962-26-9

Description: UNBS3157 is a DNA intercalator, and a novel nonhematotoxic naphthalimide derivative with potent antitumor activity. Amonafide, a naphthalimide which binds to DNA by intercalation and poisons topoisomerase IIalpha, has demonstrated activity in phase II breast cancer trials, but has failed thus far to enter clinical phase III because of dose-limiting bone marrow toxicity. UNBS3157 was found to have a 3-4-fold higher maximum tolerated dose compared to amonafide and not to provoke hematotoxicity in mice at doses that display significant antitumor effects. Furthermore, UNBS3157 has shown itself to be superior to amonafide in vivo in models of (i) L1210 murine leukemia, (ii) MXT-HI murine mammary adenocarcinoma, and (iii) orthotopic models of human A549 NSCLC and BxPC3 pancreatic cancer.

Chemical Structure

CAS# 868962-26-9

Theoretical Analysis

MedKoo Cat#: 406542
Name: UNBS3157
CAS#: 868962-26-9
Chemical Formula: C19H17Cl3N4O4
Exact Mass: 470.03
Molecular Weight: 471.720
Elemental Analysis: C, 48.38; H, 3.63; Cl, 22.55; N, 11.88; O, 13.57

Price and Availability

Size Price Availability Quantity
1g USD -1
2g USD -1
5g USD -1
Bulk inquiry

Synonym: UNBS 3157, UNBS3157, UNBS-3157

IUPAC/Chemical Name: 2,2,2-trichloro-N-((2-(2-(dimethylamino)ethyl)-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-5-yl)carbamoyl)acetamide


InChi Code: InChI=1S/C19H17Cl3N4O4/c1-25(2)6-7-26-15(27)12-5-3-4-10-8-11(9-13(14(10)12)16(26)28)23-18(30)24-17(29)19(20,21)22/h3-5,8-9H,6-7H2,1-2H3,(H2,23,24,29,30)

SMILES Code: O=C(NC(NC1=CC2=CC=CC(C(N(CCN(C)C)C3=O)=O)=C2C3=C1)=O)C(Cl)(Cl)Cl

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

More Info:

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 471.72 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
Formulation protocol:
In vitro protocol:
In vivo protocol:

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.

1: Mijatovic T, Mahieu T, Bruyère C, De Nève N, Dewelle J, Simon G, Dehoux MJ, van der Aar E, Haibe-Kains B, Bontempi G, Decaestecker C, Van Quaquebeke E, Darro F, Kiss R. UNBS5162, a novel naphthalimide that decreases CXCL chemokine expression in experimental prostate cancers. Neoplasia. 2008 Jun;10(6):573-86. PubMed PMID: 18516294; PubMed Central PMCID: PMC2386542.