PD0332991 HCl - ≥98% , CAS No.827022-32-2

CAS: 827022-32-2 Cat. No.: E129959 Molecular Weight: 483.99

GRADE & PURITY ≥98%

Synonyms

FT-0700370 | Palbociclib (hydrochloride) | PD-0332991 hydrochloride | AKOS000120736 | Pyrido(2,3-d)pyrimidin-7(8H)-one, 6-acetyl-8-cyclopentyl-5-methyl-2-((5-(1-piperazinyl)-2-pyridinyl)amino)-, hydrochloride (1:1) | MFCD22420809 | EX-A025 | 827022-32-2,

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

Overview

Palbociclib (PD-0332991) HCl is a highly selective inhibitor of CDK4/6 with IC50 of 11 nM/16 nM respectively. It shows no activity against CDK1/2/5, EGFR, FGFR, PDGFR, InsR, etc. Phase 3.
A highly selective inhibitor of Cdk4/cyclin D1 and Cdk6/cyclin D2.

Specifications

Synonyms

FT-0700370 | Palbociclib (hydrochloride) | PD-0332991 hydrochloride | AKOS000120736 | Pyrido(2, 3-d)pyrimidin-7(8H)-one, 6-acetyl-8-cyclopentyl-5-methyl-2-((5-(1-piperazinyl)-2-pyridinyl)amino)-, hydrochloride (1:1) | MFCD22420809 | EX-A025 | 827022-32-2,

Specifications & Purity

≥98%

Biochemical and Physiological Mechanisms

PD 0332991 is a highly selective inhibitor of Cdk4/cyclin D1 and Cdk6/cyclin D2 (IC50’s: Cdk4 = 11 nM; Cdk6 = 16 nM). PD 0332991 has little effect on other protein kinases including EGFR, FGFR, PGFR, and IR. PD 0332991 is a non-ATP competitive inhibitor o

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

This product requires cold chain shipping. Ground and other economy services are not available.

Purity

≥98%

Names and Identifiers

• Pubchem Sid: 504766411
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/504766411
• Canonical Smiles: CC1=C(C(=O)N(C2=NC(=NC=C12)NC3=NC=C(C=C3)N4CCNCC4)C5CCCC5)C(=O)C.Cl
• IUPAC Name: 6-acetyl-8-cyclopentyl-5-methyl-2-[(5-piperazin-1-ylpyridin-2-yl)amino]pyrido[2,3-d]pyrimidin-7-one;hydrochloride
• InChIKey: STEQOHNDWONVIF-UHFFFAOYSA-N
• INCHI: 1S/C24H29N7O2.ClH/c1-15-19-14-27-24(28-20-8-7-18(13-26-20)30-11-9-25-10-12-30)29-22(19)31(17-5-3-4-6-17)23(33)21(15)16(2)32;/h7-8,13-14,17,25H,3-6,9-12H2,1-2H3,(H,26,27,28,29);1H
• Isomeric SMILES: CC1=C(C(=O)N(C2=NC(=NC=C12)NC3=NC=C(C=C3)N4CCNCC4)C5CCCC5)C(=O)C.Cl
• Molecular Weight: 483.99
• Reaxy-Rn: 14353643
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=14353643&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organoheterocyclic compounds
    • Class Diazinanes
      • Subclass Piperazines

• Kingdom: Organic compounds
• Superclass: Organoheterocyclic compounds
• Class: Diazinanes
• Subclass: Piperazines
• Intermediate Tree Nodes: Not available
• Direct Parent: Pyridinylpiperazines
• Alternative Parents: N-arylpiperazines Pyrido[2,3-d]pyrimidines Aryl alkyl ketones Dialkylarylamines Pyridinones Aminopyridines and derivatives Methylpyridines Aminopyrimidines and derivatives Imidolactams Vinylogous amides Heteroaromatic compounds Lactams Azacyclic compounds Dialkylamines Hydrocarbon derivatives Organic oxides Hydrochlorides
• Molecular Framework: Aromatic heteropolycyclic compounds
• Substituents: Pyridinylpiperazine - N-arylpiperazine - Pyridopyrimidine - Pyrido[2,3-d]pyrimidine - Tertiary aliphatic/aromatic amine - Aryl ketone - Aryl alkyl ketone - Dialkylarylamine - Pyridinone - Aminopyridine - Aminopyrimidine - Methylpyridine - Imidolactam - Pyrimidine - Pyridine - Vinylogous amide - Heteroaromatic compound - Ketone - Tertiary amine - Lactam - Secondary aliphatic amine - Azacycle - Secondary amine - Organooxygen compound - Organonitrogen compound - Hydrocarbon derivative - Organic oxide - Amine - Organic nitrogen compound - Hydrochloride - Organic oxygen compound - Aromatic heteropolycyclic compound
• Description: This compound belongs to the class of organic compounds known as pyridinylpiperazines. These are compounds containing a pyridinylpiperazine skeleton, which consists of a pyridine linked (not fused) to a piperazine by a bond by a single bond that is not part of a ring.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Associated Targets(Human)

CDK4 Tclin Cyclin-dependent kinase 4/cyclin D1 (2340 Activities)

Discover Target: CDK4

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

FGFR3 Tclin Fibroblast growth factor receptor (331 Activities)

Discover Target: FGFR3

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CDK2 Tchem CDK2/Cyclin A2 (2260 Activities)

Discover Target: CDK2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Associated Targets(non-human)

rep Replicase polyprotein 1ab (378 Activities)

Discover Target: rep

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Mechanisms of Action

Chemical and Physical Properties

• Solubility: Soluble in water (30 mg/ml at 25 °C), DMSO (3 mg/ml at 25 °C), and ethanol (< 1 mg/ml at 25 °C).
• Molecular Weight: 484.000 g/mol
• Hydrogen Bond Donor Count: 3
• Hydrogen Bond Acceptor Count: 8
• Rotatable Bond Count: 5
• Exact Mass: 483.215 Da
• Monoisotopic Mass: 483.215 Da
• Topological Polar Surface Area: 103.000 Ų
• Heavy Atom Count: 34
• Formal Charge: 0
• Complexity: 775.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 2

XLogP3

References

1. Jie Liang, Dong-Kun Zhao, Hao-Ming Yin, Tai-Yu Tian, Jian-Kang Kang, Song Shen, Jun Wang.  (2025)  Combinatorial screening of nanomedicines in patient-derived cancer organoids facilitates efficient cancer therapy.  Nano Today,      [PMID:] [10.1016/j.nantod.2025.102665]