Trilaciclib hydrochloride

Trilaciclib hydrochloride (G1T28 hydrochloride) is a CDK4/6 inhibitor with IC50s of 1 nM and 4 nM for CDK4 and CDK6, respectively.

Product information

CAS Number: 1977495-97-8

Molecular Weight: 519.47

Formula: C24H32Cl2N8O

Chemical Name: 12'-{[5-(4-methylpiperazin-1-yl)pyridin-2-yl]amino}-2',5',11',13'-tetraazaspiro[cyclohexane-1,3'-tricyclo[7.4.0.0²,⁷]tridecane]-1'(13'),7',9',11'-tetraen-6'-one; bis(chlorohydrogen)

Smiles: Cl.Cl.CN1CCN(CC1)C1C=NC(=CC=1)NC1N=C2C(=CN=1)C=C1C(=O)NCC3(CCCCC3)N12

InChiKey: BRCYOXKEDFAUSA-UHFFFAOYSA-N

InChi: InChI=1S/C24H30N8O.2ClH/c1-30-9-11-31(12-10-30)18-5-6-20(25-15-18)28-23-26-14-17-13-19-22(33)27-16-24(7-3-2-4-8-24)32(19)21(17)29-23;;/h5-6,13-15H,2-4,7-12,16H2,1H3,(H,27,33)(H,25,26,28,29);2*1H

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 1.1 mg/mL (2.12 mM; Need ultrasonic). H2O : 25.64 mg/mL (49.36 mM; ultrasonic and adjust pH to 2 with HCl).

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

Incubation with Trilaciclib hydrochloride (G1T28) for 24 hours induces a robust G1 cell-cycle arrest (time=0). By 16 hours after Trilaciclib hydrochloride washout, cells have reentered the cell cycle and demonstrate cell-cycle kinetics similar to untreated control cells. These results demonstrate that Trilaciclib hydrochloride causes a transient, and reversible G1 arrest. A transient Trilaciclib hydrochloride-mediated G1 cell-cycle arrest in CDK4/6-sensitive cells decreases the in vitro toxicity of a variety of commonly used cytotoxic chemotherapy agents associated with myelosuppression.

In Vivo:

Trilaciclib hydrochloride (G1T28) treatment results in a robust and dose-dependent suppression of proliferation in HSPCs at 12 hours, with 5-ethynyl-2′-deoxyuridine (EdU) incorporation returning near baseline levels in a dose-dependent manner by 24 hours after administration. These data demonstrate that a single oral dose of Trilaciclib hydrochloride can produce reversible cell-cycle arrest in HSPCs in a dose-dependent manner in vivo. Mice given 100 mg/kg Trilaciclib hydrochloride 30 minutes prior to etoposide treatment, exhibits only background levels of caspase-3/7 activity. These data demonstrate that Trilaciclib hydrochloride can protect the bone marrow from chemotherapy-induced apoptosis in vivo. The data demonstrate that treatment with Trilaciclib hydrochloride prior to 5-fluorouracil (5-FU) likely decreases 5-FU-induced damage by chemotherapy in HSPCs, thus accelerating blood count recovery after chemotherapy.

Products are for research use only. Not for human use.