Description

4-Pyrimidineacetaldehyde (9Ci) is a versatile heterocyclic aldehyde building block with the CAS registry number 120455-87-0. This compound is valued for its reactive aldehyde group, which enables its use in the synthesis of complex molecules, particularly in pharmaceutical research and development. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing novel pyrimidine-based scaffolds.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those containing functionalized pyrimidine cores for antiviral, anticancer, or kinase inhibitor applications.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators where the pyrimidine moiety is a critical structural component.
• Fine Chemical Building Block: Serves as a versatile starting material for creating complex ligands, catalysts, and specialty chemicals used in material science and catalysis.
• Academic & Contract Research: Employed in academic laboratories and CROs (Contract Research Organizations) for medicinal chemistry programs and the exploration of new chemical entities.
• Peptide Mimetics & Bioconjugation: The aldehyde functionality allows for use in conjugation chemistry and the development of peptide mimetics or labeled compounds for biochemical studies.

Basic Information

Item	Details
Product Name	4-Pyrimidineacetaldehyde (9Ci)
CAS No.	120455-87-0
Molecular Formula	C6H6N2O
Molecular Weight	122.12 g/mol
Synonyms	4-Pyrimidineacetaldehyde; 2-(Pyrimidin-4-yl)acetaldehyde; 4-Pyrimidineacetic aldehyde; Pyrimidine-4-acetaldehyde; (Pyrimidin-4-yl)acetaldehyde; 4-(2-Oxoethyl)pyrimidine; 120455-87-0 (CAS)
EINECS	Contact for details

Quality Control

Our 4-Pyrimidineacetaldehyde is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support cGMP standards for advanced applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 2-8°C for long-term stability. This compound is easily oxidized and light-sensitive. Allow the sealed container to reach ambient temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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