Aminopurine

2-Aminopurine

Names
IUPAC name 9H-purin-2-amine
Identifiers
CAS Number	452-06-2 N
3D model (JSmol)	Interactive image
ChEBI	CHEBI:479072 Y
ChemSpider	9561 Y
ECHA InfoCard	100.006.545
PubChem CID	9955
InChI InChI=1S/C5H5N5/c6-5-7-1-3-4(10-5)9-2-8-3/h1-2H,(H3,6,7,8,9,10) Y Key: MWBWWFOAEOYUST-UHFFFAOYSA-N Y InChI=1/C5H5N5/c6-5-7-1-3-4(10-5)9-2-8-3/h1-2H,(H3,6,7,8,9,10) Key: MWBWWFOAEOYUST-UHFFFAOYAC
SMILES n1cc2c(nc1N)ncn2
Properties
Chemical formula	C5H5N5
Molar mass	135.13 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

2-Aminopurine, an analog of guanine and adenine, is a fluorescent molecular marker used in nucleic acid research. It most commonly pairs with thymine as an adenine-analogue, but can also pair with cytosine as a guanine-analogue;. For this reason it is sometimes used in the laboratory for mutagenesis.