Description

Cytosine is a fundamental pyrimidine nucleobase, a critical building block in the genetic code of DNA and RNA. Its high purity and consistent quality are essential for ensuring the reliability of downstream research, diagnostics, and therapeutic development. This compound is primarily required by the pharmaceutical, biotechnology, and life science research industries for applications ranging from nucleic acid synthesis to drug discovery.

Application

• Pharmaceutical Intermediate: A key raw material in the synthesis of nucleoside analogs and antiviral/anticancer drugs.
• Biochemical Research: Used in molecular biology for studying nucleic acid structure, function, and enzymatic processes.
• Diagnostic Reagent Manufacturing: Serves as a component in the production of probes, primers, and kits for genetic testing.
• Cell Culture Media Supplement: Employed in specialized media formulations to support cell growth and metabolism studies.
• Reference Standard: Acts as a high-purity standard for analytical methods like HPLC and mass spectrometry in quality control labs.
• Cosmetic & Nutraceutical R&D: Investigated for potential applications in anti-aging and bioactive formulations.

Basic Information

Product Name	Cytosine
CAS No.	71-30-7
Molecular Formula	C4H5N3O
Molecular Weight	111.10 g/mol
Synonyms	4-Aminopyrimidin-2(1H)-one; 2-Oxo-4-aminopyrimidine; 6-Amino-2(1H)-pyrimidinone; Cytosin; Cytosinimine; Cytosine (base); Cytosine, free base; 4-Amino-2-hydroxypyrimidine
EINECS	200-749-5

Quality Control

Our Cytosine is manufactured under a strict quality management system. Each batch is tested to ensure it meets high-purity standards suitable for research and pharmaceutical applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). The product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5% Total impurities ≤ 1.5%

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