Cytosine, 98%

Name: Cytosine, 98%
Brand: Vaqora Chemicals
SKU: VQ-003286

About Cytosine, 98%

Cytosine (CAS 71-30-7) is a molecular biology reagent offered by Vaqora Chemicals (Biochemistry grade), specified at 98% purity. Its molecular formula is C4H5N3O and its molecular weight is 111.1 g/mol. The IUPAC name is 6-amino-1H-pyrimidin-2-one. It is also known as 4-Amino-2-hydroxypyrimidine or 4-Aminopyrimidin-2-(1H)-one.

The product is provided as a powder. Key physical data: a melting point of above 300 °C. Recommended storage is at room temperature in a dry place, with the container kept tightly sealed. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span electrophoresis, DNA/RNA workflows and protein analysis. Typical end-use sectors are academic and industrial research and diagnostics and biotechnology.

Available in 1 g, 5 g, 25 g and 100 g packs, Cytosine is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Electrophoresis
DNA/RNA workflows
Protein analysis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Cytosine, 98%
Catalogue No.	VQ-003286
CAS Number	71-30-7
IUPAC name	6-amino-1H-pyrimidin-2-one
Molecular formula	C₄H₅N₃O
Molecular weight	111.1 g/mol
Exact mass	111.0433
Grade	Biochemistry
Purity / assay	98%
HSN code	29335990
InChIKey	OPTASPLRGRRNAP-UHFFFAOYSA-N
SMILES	C1=C(NC(=O)N=C1)N
PubChem CID	597

Physical properties
Physical form	Powder
Appearance	Powder
Melting point	>300 °C
LogP (XLogP3)	-1.7
H-bond donors / acceptors	2 / 2
TPSA	67.5 Å²
Storage	Room temperature
Synonyms	4-Amino-2-hydroxypyrimidine, 4-Aminopyrimidin-2-(1H)-one, 4-aminopyrimidin-2(1H)-one, Cytosinimine, 2(1H)-Pyrimidinone, 4-amino-, 4-Amino-2(1H)-pyrimidinone, 4-amino-3h-pyrimidin-2-one, 6-amino-1,2-dihydropyrimidin-2-one, 4-Aminouracil, 6-Aminopyrimidin-2(1h)-One, 4-aminopyrimidin-2-ol, Cytosin

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Cytosine, 98%?

The CAS Registry Number of Cytosine, 98% is 71-30-7. It is also known as 4-Amino-2-hydroxypyrimidine, 4-Aminopyrimidin-2-(1H)-one, 4-aminopyrimidin-2(1H)-one.

What is the molecular formula and molecular weight of Cytosine, 98%?

Cytosine, 98% has the molecular formula C4H5N3O and a molecular weight of 111.1 g/mol. Its IUPAC name is 6-amino-1H-pyrimidin-2-one.

Which grade and pack sizes of Cytosine, 98% can I order?

We supply Cytosine, 98% in Biochemistry (98%) grade, in 1 g, 5 g, 25 g, 100 g, 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Cytosine, 98%?

Yes. Every lot of Cytosine, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Cytosine, 98% be shipped internationally?

Yes. Cytosine, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

How should Cytosine, 98% be stored?

Room temperature. Keep the container tightly closed and refer to the SDS for full handling guidance.