Guadecitabine (SGI-110)

For research use only.

Catalog No.S7013 Synonyms: S-110

2 publications

Guadecitabine (SGI-110) Chemical Structure

CAS No. 929904-85-8

Guadecitabine (SGI-110, S-110) is a next-generation hypomethylating agent whose active metabolite decitabine has a longer in-vivo exposure time than intravenous decitabine.

Selleck's Guadecitabine (SGI-110) has been cited by 2 publications

Purity & Quality Control

Biological Activity

Description Guadecitabine (SGI-110, S-110) is a next-generation hypomethylating agent whose active metabolite decitabine has a longer in-vivo exposure time than intravenous decitabine.
DNA methyltransferase [1]
In vitro

SGI-110 is a 5-aza-2’-deoxycytidine-containing demethylating dinucleotide, which works via a mechanism similar to that of 5-aza-CdR after incorporation of its aza-moiety into DNA. However, SGI-110 is well protected from deamination by cytidine deaminase. SGI-110 (1 μM) induces significantly decrease in the level of methylation in both T24 and HCT116 cells. SGI-110 is able to induce robust p16 expression. SGI-110 (1 μM) causes depletion of extractable DNMT1 in cells. SGI-110 decreases the plating efficiency of T24 bladder carcinoma cells in a dose-dependent manner, with no colonies forming at 10 μM concentration, which is quite similar to 5-aza-CdR in T24 cells. [1] SGI-110 shows immunomodulatory activity in vitro. SGI-110 (1 μM) induces/up-regulates the expression of several cancer/testis antigens (CTA) (i.e., MAGE-A1, MAGE-A2, MAGE-A3, MAGE-A4, MAGE-A10, GAGE1-2, GAGE 1-6, NY-ESO-1, and SSX 1-5) in cancer cell lines (cutaneous melanoma, mesothelioma, renal cell carcinoma, and sarcoma cells), both at mRNA and at protein levels. SGI-110 also up-regulates the expression of HLA class I antigens and of ICAM-1, resulting in an improved recognition of cancer cells by gp100-specific CTL. [2]

In vivo

SGI-110 is as effective as 5-Aza-CdR, but is better tolerated in mice. SGI-110 (10 mg/kg) displays potent activity on inducing p16 expression, reducing DNA methylation at the p16 promoter region, and retarding tumor growth in human xenograft. SGI-110 is effective by both i.p. and s.c. deliveries. [3]


Animal Research:


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  • Animal Models: Human bladder cancers xenografts EJ6
  • Dosages: 10 mg/kg
  • Administration: i.p. or s.c.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 100 mg/mL (172.59 mM)
Water 50 mg/mL (86.29 mM)
Ethanol Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 579.39

C18 H23 N9 O10 P . Na

CAS No. 929904-85-8
Storage powder
in solvent
Synonyms S-110
Smiles C1C(C(OC1N2C=NC3=C2N=C(NC3=O)N)COP(=O)([O-])OC4CC(OC4CO)N5C=NC(=NC5=O)N)O.[Na+]

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID