Guanine

CAS 73-40-5C5H5N5OChemical Synthesis

Guanine (CAS 73-40-5; C5H5N5O; MW 151.13) is a purine derivative, a crucial component of nucleic acids and essential for life. This white crystalline solid serves as a fundamental building block in biochemistry and chemical synthesis. Widely recognized for its role in DNA and RNA, guanine is also a key phytochemical found in various plants and plays a role in nutrition research.

IUPAC: 2-Amino-6-hydroxypurine

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Guanine (C5H5N5O) — chemical structure, CAS 73-40-5; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksCell BiologyChemical SynthesisHeterocyclic Building BlocksNutrition ResearchPanax ginsengPurines More...

01 /Applications

Biochemical Research

Guanine is indispensable for research in molecular biology, genetics, and cell biology due to its role as a nucleobase in DNA and RNA. It's used in studies of nucleic acid structure, function, and synthesis.

Chemical Synthesis

As a heterocyclic building block, guanine is utilised in the synthesis of various organic compounds and pharmaceutical intermediates. Its purine structure makes it a valuable starting material for complex molecule construction.

Nutrition and Phytochemical Studies

Guanine is studied for its presence in foodstuffs and its role in human and animal nutrition. It is also a focus in research on phytochemicals, particularly those derived from plants like Panax ginseng.

02 /Properties

Molecular weight	151.13
Empirical formula	C5H5N5O
Assay	98%
Melting point	>300 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust, fume, gas or vapours
P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xi
Risk statements (R)	36/37/38
Safety statements (S)	26-36

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

73-40-5

MDL number

MFCD00071533

PubChem substance

24895050

Beilstein registry

9680

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Guanine primarily used for?

Guanine is primarily used as a fundamental building block in biochemistry, particularly in DNA and RNA, and as an intermediate in chemical synthesis and nutrition research.

What are the CAS number and formula for Guanine?

The CAS number for Guanine is 73-40-5, and its empirical formula is C5H5N5O.

What grade and purity does Tech Serve Solutions supply for Guanine?

Tech Serve Solutions supplies Guanine with an assay of 98%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade unless explicitly stated in the product specifications.

How should Guanine be handled safely?

Guanine is classified as an irritant. Handle with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust. If in eyes, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do.

How is Guanine packed, shipped, and exported?

Guanine is carefully packed to maintain its integrity during transit. Tech Serve Solutions, established in 1998, is a specialist global supplier and exporter of fine chemicals, ensuring reliable international distribution.