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

MedKoo CAT#: 406112

CAS#: 1260247-42-4

Description: LLL12 is a potent STAT3 inhibitor. LLL12 inhibits colony formation and cell migration and works synergistically with doxorubicin and gemcitabine. LLL12 demonstrated a potent inhibitory activity on breast and glioblastoma tumor growth in a mouse xenograft model. LLL12 may be a potential therapeutic agent for human cancer cells expressing constitutive STAT3 signaling.

Chemical Structure

CAS# 1260247-42-4

Theoretical Analysis

MedKoo Cat#: 406112
Name: LLL12
CAS#: 1260247-42-4
Chemical Formula: C14H9NO5S
Exact Mass: 303.02014
Molecular Weight: 303.29
Elemental Analysis: C, 55.44; H, 2.99; N, 4.62; O, 26.38; S, 10.57

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: LLL12; LLL-12; LLL 12

IUPAC/Chemical Name: 5-hydroxy-9,10-dioxo-9,10-dihydroanthracene-1-sulfonamide


InChi Code: InChI=1S/C14H9NO5S/c15-21(19,20)10-6-2-4-8-12(10)14(18)7-3-1-5-9(16)11(7)13(8)17/h1-6,16H,(H2,15,19,20)

SMILES Code: O=S(C(C=CC=C1C(C2=C3C=CC=C2O)=O)=C1C3=O)(N)=O

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 303.29 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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1: Jain R, Kulkarni P, Dhali S, Rapole S, Srivastava S. Quantitative proteomic analysis of global effect of LLL12 on U87 cell's proteome: An insight into the molecular mechanism of LLL12. J Proteomics. 2015 Jan 15;113:127-42. doi: 10.1016/j.jprot.2014.09.020. Epub 2014 Oct 5. PubMed PMID: 25286751.

2: Couto JI, Bear MD, Lin J, Pennel M, Kulp SK, Kisseberth WC, London CA. Biologic activity of the novel small molecule STAT3 inhibitor LLL12 against canine osteosarcoma cell lines. BMC Vet Res. 2012 Dec 17;8:244. doi: 10.1186/1746-6148-8-244. PubMed PMID: 23244668; PubMed Central PMCID: PMC3585923.

3: Bid HK, Oswald D, Li C, London CA, Lin J, Houghton PJ. Anti-angiogenic activity of a small molecule STAT3 inhibitor LLL12. PLoS One. 2012;7(4):e35513. doi: 10.1371/journal.pone.0035513. Epub 2012 Apr 17. PubMed PMID: 22530037; PubMed Central PMCID: PMC3328460.

4: Liu A, Liu Y, Li PK, Li C, Lin J. LLL12 inhibits endogenous and exogenous interleukin-6-induced STAT3 phosphorylation in human pancreatic cancer cells. Anticancer Res. 2011 Jun;31(6):2029-35. PubMed PMID: 21737619.

5: Ball S, Li C, Li PK, Lin J. The small molecule, LLL12, inhibits STAT3 phosphorylation and induces apoptosis in medulloblastoma and glioblastoma cells. PLoS One. 2011 Apr 19;6(4):e18820. doi: 10.1371/journal.pone.0018820. PubMed PMID: 21526200; PubMed Central PMCID: PMC3079737.

6: Lin L, Benson DM Jr, DeAngelis S, Bakan CE, Li PK, Li C, Lin J. A small molecule, LLL12 inhibits constitutive STAT3 and IL-6-induced STAT3 signaling and exhibits potent growth suppressive activity in human multiple myeloma cells. Int J Cancer. 2012 Mar 15;130(6):1459-69. doi: 10.1002/ijc.26152. Epub 2011 Aug 26. PubMed PMID: 21520044; PubMed Central PMCID: PMC3228889.

7: Onimoe GI, Liu A, Lin L, Wei CC, Schwartz EB, Bhasin D, Li C, Fuchs JR, Li PK, Houghton P, Termuhlen A, Gross T, Lin J. Small molecules, LLL12 and FLLL32, inhibit STAT3 and exhibit potent growth suppressive activity in osteosarcoma cells and tumor growth in mice. Invest New Drugs. 2012 Jun;30(3):916-26. doi: 10.1007/s10637-011-9645-1. Epub 2011 Feb 22. PubMed PMID: 21340507.

8: Wei CC, Ball S, Lin L, Liu A, Fuchs JR, Li PK, Li C, Lin J. Two small molecule compounds, LLL12 and FLLL32, exhibit potent inhibitory activity on STAT3 in human rhabdomyosarcoma cells. Int J Oncol. 2011 Jan;38(1):279-85. PubMed PMID: 21109950.

9: Lin L, Hutzen B, Li PK, Ball S, Zuo M, DeAngelis S, Foust E, Sobo M, Friedman L, Bhasin D, Cen L, Li C, Lin J. A novel small molecule, LLL12, inhibits STAT3 phosphorylation and activities and exhibits potent growth-suppressive activity in human cancer cells. Neoplasia. 2010 Jan;12(1):39-50. PubMed PMID: 20072652; PubMed Central PMCID: PMC2805882.

Additional Information