| Description | Ch55 (3,5-Di-tert-butylchalcone) is an effective inducer of the differentiation of HL60 cells (EC50 = 200 nM) and shows high affinity with RAR-α and RAR-β receptors. Ch55 can be used in studies about cancer. |
| In vitro | In rabbit tracheal epithelial cells, Ch55 inhibits type I transglutaminase activity (EC50 = 0.02 nM) and increases cholesterol sulfate levels (EC50 = 0.03 nM) thereby inhibiting squamous cell differentiation. Ch55 inhibits the induction of ornithine decarboxylase activity in 3T6 fibroblasts (EC50 = 1 nM) and induces cell differentiation of embryonic carcinoma F9 cells and melanoma S91 cells (EC50 = 0.26 and 0.5 nM). Ch55 shows a low affinity for cellular retinoic acid binding protein[1]. |
| Synonyms | Ch-55, CH 55, 3,5-Di-tert-butylchalcone |
| molecular weight | 364.48 |
| Molecular formula | C24H28O3 |
| CAS | 110368-33-7 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| Solubility | DMSO: 40 mg/mL (109.7 mM), Sonication is recommended. |
| References | 1. Jetten AM, et al. New benzoic acid derivatives with retinoid activity: lack of direct correlation between biological activity and binding to cellular retinoic acid binding protein. Cancer Res. 1987 Jul 1;47(13):3523-7. 2. Takahashi N, et al. Induction of differentiation and covalent binding to proteins by the synthetic retinoids Ch55 and Am80. Arch Biochem Biophys. 1994 Oct;314(1):82-9. |
| Citations | 1. Li J, Bai Y, Liu Y, et al.Transcriptome-based chemical screens identify CDK8 as a common barrier in multiple cell reprogramming systems.Cell Reports.2023, 42(6). |