827022-33-3
Product Name:
PD0332991 Isethionate
Formula:
C26H35N7O6S
Synonyms:
6-acetyl-8-cyclopentyl-5-methyl-2-[[5-(1-piperazinyl)-2-pyridinyl]amino]pyrido[2,3-d]pyrimidin-7(8H)-one 2-hydroxy-ethanesulfonic acid (1:1);Palbociclib isethionate
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SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H301:Acute toxicity,oral |
| Precautionary Statement Codes |
P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
COMPUTED DESCRIPTORS
| Molecular Weight | 573.7 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 4 |
| Hydrogen Bond Acceptor Count | 12 |
| Rotatable Bond Count | 7 |
| Exact Mass | 573.23695304 g/mol |
| Monoisotopic Mass | 573.23695304 g/mol |
| Topological Polar Surface Area | 186 Ų |
| Heavy Atom Count | 40 |
| Formal Charge | 0 |
| Complexity | 892 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 2 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Palbociclib Isethionate is the isethionate salt form of palbociclib, an orally available cyclin-dependent kinase (CDK) inhibitor with potential antineoplastic activity. Palbociclib selectively inhibits cyclin-dependent kinase 4 (CDK4) and 6 (CDK6), thereby inhibiting retinoblastoma (Rb) protein phosphorylation early in the G1 phase leading to cell cycle arrest. This suppresses DNA replication and decreases tumor cell proliferation. CDK4 and 6 are serine/threonine kinases that are upregulated in many tumor cell types and play a key role in the regulation of cell cycle progression.