Description

Pd0332991 Isethionate is a high-purity, specialized chemical compound designed for advanced research and development applications. This material is valued for its role as a key intermediate or active component in the synthesis of novel pharmaceutical agents and fine chemicals. It is primarily sought by R&D laboratories and production facilities in the pharmaceutical, biotechnology, and specialty chemical sectors requiring precise and reliable building blocks for complex molecular synthesis.

Application

• Pharmaceutical Research & Development: Serves as a critical intermediate in the synthesis pathway for novel active pharmaceutical ingredients (APIs), particularly in oncology and targeted therapy research.
• Preclinical & Clinical Studies: Used in the preparation of compounds for pharmacological evaluation, toxicity testing, and formulation development.
• Chemical Synthesis: Acts as a specialized building block in organic synthesis for creating complex molecular structures with specific functional groups.
• Reference Standard: Suitable for use as an analytical standard in method development and quality control laboratories for compound identification and quantification.
• Bioconjugation & Probe Development: Potential use in the development of labeled compounds or probes for biochemical and diagnostic assays.

Basic Information

Product Name	Pd0332991 Isethionate
CAS No.	827022-33-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Palbociclib Isethionate; PD-0332991 Isethionate; IBRANCE® Isethionate Salt; 6-Acetyl-8-cyclopentyl-5-methyl-2-[[5-(1-piperazinyl)-2-pyridinyl]amino]pyrido[2,3-d]pyrimidin-7(8H)-one isethionate; PD-0332991 Isethionic acid salt; LEE-011 Isethionate (obsolete); PD-0332991 Isethionate salt
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for research and development use. Each batch is characterized using advanced analytical techniques to confirm identity, purity, and consistency. Certificates of Analysis (COA) detailing specific test results are available upon request. We adhere to strict internal quality management protocols to ensure supply reliability and material traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%; Any single impurity ≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.