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Screening compounds

Palbociclib 2HCl

Also known as Palbociclib dihydrochloride, PD 0332991 hydrochloride, Palbociclib (dihydrochloride)

CAS 571189-11-2Formula C24H31Cl2N7O2Molar mass 520.47 g/mol
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Palbociclib 2HCl chemical structure, C24H31Cl2N7O2, CAS 571189-11-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
571189-11-2
Formula
C24H31Cl2N7O2
Molar mass
520.47 g/mol
HS code
293359
Category
Screening compounds

What is Palbociclib 2HCl?

Plain description, key identifiers and synonyms

Palbociclib 2HCl is a chemical substance with the molecular formula C24H31Cl2N7O2 and a molar mass of 520.47 g/mol. Its CAS registry number is 571189-11-2. The IUPAC name is 6-acetyl-8-cyclopentyl-5-methyl-2-[(5-piperazin-1-yl-2-pyridinyl)amino]pyrido[2,3-d]pyrimidin-7-one, dihydrochloride.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-acetyl-8-cyclopentyl-5-methyl-2-[(5-piperazin-1-yl-2-pyridinyl)amino]pyrido[2,3-d]pyrimidin-7-one, dihydrochloride
CAS number
571189-11-2 CAS number cross-checkedOther or deprecated CAS: 1831842-69-3
Molecular formula
C24H31Cl2N7O2
MDL number
MFCD18089822
InChIKey
YORIVNBSTFKZTO-UHFFFAOYSA-N
InChI
InChI=1S/C24H29N7O2.2ClH/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);2*1H
SMILES (canonical and isomeric)
CC1=C(C(=O)N(C2=NC(=NC=C12)NC3=NC=C(C=C3)N4CCNCC4)C5CCCC5)C(=O)C.Cl.Cl

Synonyms

  • Palbociclib dihydrochloride
  • PD 0332991 hydrochloride
  • Palbociclib (dihydrochloride)
  • 6-acetyl-8-cyclopentyl-5-methyl-2-[(5-piperazin-1-ylpyridin-2-yl)amino]pyrido[2,3-d]pyrimidin-7-one, dihydrochloride
  • 6-Acetyl-8-cyclopentyl-5-methyl-2-((5-(piperazin-1-yl)pyridin-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one dihydrochloride
  • 6-Acetyl-8-cyclopentyl-5-methyl-2-[[5-(1-piperazinyl)-2-pyridinyl]amino]pyrido[2,3-d]pyrimidin-7(8H)-one hydrochloride
  • 6-acetyl-8-cyclopentyl-5-methyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-8h-pyrido[2,3-d]pyrimidin-7-one hydrochloride
  • C24H31Cl2N7O2
  • PD-0332991 Dihydrochloride
  • 6-Acetyl-8-cyclopentyl-5-methyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-8H-pyrido[2,3-d]pyrimidin-7-one dihydrochloride
  • 6-acetyl-8-cyclopentyl-5-methyl-2-[(5-piperazin-1-yl-2-pyridyl)amino]pyrido[2,3-d]pyrimidin-7-one, dihydrochloride
  • 6-Acetyl-8-cyclopentyl-5-methyl-2-{[5-(piperazin-1-yl)pyridin-2-yl]amino}pyrido[2,3-d]pyrimidin-7(8H)-one--hydrogen chloride (1/2)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
520.47 g/molcalc.
Exact mass
519.1916 Dacalc.
LogP (octanol/water)
3.81calc.
Topological polar surface area
105 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
5calc.
Heavy atoms
35calc.
Rings
5calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.46calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=c1ccc2cnc(Nc3ccc(N4CCNCC4)cn3)nc2n1C1CCCC1

O=c1ccc2cnc(Nc3ccc(N4CCNCC4)cn3)nc2n1C1CCCC1

5 rings, 29 atoms.

60 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Palbociclib 2HCl suppliers

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Palbociclib 2HCl price

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Palbociclib 2HCl is traded under.

HS 2933.59Indicative HS code

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring, other

World exports in 2024
$18.4B
+10.5% vs 2023, imports $24.8B
2019 to 2024
Top exporters
  1. Ireland43.6%
  2. Switzerland * partner reported26.3%
  3. China7.9%
Top importers
  1. Slovenia30.3%
  2. United States30.1%
  3. Germany15.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Palbociclib 2HCl is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Palbociclib 2HCl, based on the data on this page

What is Palbociclib 2HCl?

Palbociclib 2HCl is a chemical substance with the molecular formula C24H31Cl2N7O2 and a molar mass of 520.47 g/mol. Its CAS registry number is 571189-11-2. The IUPAC name is 6-acetyl-8-cyclopentyl-5-methyl-2-[(5-piperazin-1-yl-2-pyridinyl)amino]pyrido[2,3-d]pyrimidin-7-one, dihydrochloride.

What is the CAS number of Palbociclib 2HCl?

The CAS registry number of Palbociclib 2HCl is 571189-11-2. Other or deprecated CAS numbers: 1831842-69-3.

What is the molecular formula and weight of Palbociclib 2HCl?

The molecular formula of Palbociclib 2HCl is C24H31Cl2N7O2 and its molar mass is 520.47 g/mol.

What is Palbociclib 2HCl used for?

Known uses and roles of Palbociclib 2HCl include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Palbociclib 2HCl hazardous?

No GHS hazard classification for Palbociclib 2HCl is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Palbociclib 2HCl?

Palbociclib 2HCl is usually classified under HS code 293359 (Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Palbociclib 2HCl?

Post a free request on CompoundList and suppliers of Palbociclib 2HCl will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Palbociclib 2HCl?

Suppliers quote Palbociclib 2HCl on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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