Guanine hydrochloride
Guanine hydrochloride (CAS: 635-39-2; Formula: C5H5N5O · HCl; MW: 187.59) is a derivative of guanine, a purine base. This white to off-white powder, assaying ≥99.0% by HPLC, is primarily employed as a building block in chemical synthesis. Its heterocyclic purine structure makes it valuable for creating more complex organic molecules, particularly in research and development settings.
- IUPAC
- 2-Amino-6-hydroxypurine hydrochloride
- Synonyms
- 2-Amino-6-hydroxypurine hydrochloride

Chemical Synthesis Intermediate
Guanine hydrochloride serves as a key intermediate in the synthesis of various organic compounds. Its purine structure is often incorporated into novel molecular designs for pharmaceutical research or materials science.
Heterocyclic Chemistry Reagent
Utilized as a fundamental building block within heterocyclic chemistry, this compound is valuable for constructing complex nitrogen-containing ring systems. Researchers leverage its reactivity to explore new chemical entities.
Research and Development
This reagent is instrumental in R&D laboratories for exploring new synthetic pathways and developing novel compounds. Its defined purity ensures reliable results in experimental procedures.
| Molecular weight | 187.59 |
|---|---|
| Empirical formula | C5H5N5O · HCl |
| Assay | ≥99.0% (HPLC) |
| Storage temperature | 2-8°C |
| Impurities tested | ~2% water |
| Melting point | ≥300 °C |

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 |
| Ignition residue | ≤0.05% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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.
What is Guanine hydrochloride used for?
+
Guanine hydrochloride is primarily used as a building block in chemical synthesis and as a reagent in heterocyclic and purine chemistry, particularly in research and development.
What is the CAS number and formula for Guanine hydrochloride?
+
The CAS number is 635-39-2, and the empirical formula is C5H5N5O · HCl.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Guanine hydrochloride with an assay of ≥99.0% (HPLC). We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should Guanine hydrochloride be handled?
+
Handle Guanine hydrochloride with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, as it may cause skin, eye, and respiratory irritation (H315, H319, H335).
How is Guanine hydrochloride packed, shipped, and exported?
+
Guanine hydrochloride is carefully packed and exported by Tech Serve Solutions, a specialist global supplier, in compliance with international shipping regulations for chemical products.
How can I request a sample or quote for Guanine hydrochloride?
+
Please contact our sales team through our website or by phone to request a sample or a quote for Guanine hydrochloride.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis