IUPAC Name: N-(6-oxo-3,7-dihydropurin-2-yl)acetamide 
Following is the structure of Acetamide,N-(6,9-dihydro-6-oxo-1H-purin-2-yl)- (CAS NO.19962-37-9):
                    
Empirical Formula: C₇H₇N₅O₂
Molecular Weight: 193.1628 
EINECS: 243-443-7
Index of Refraction: 1.833
Molar Refractivity: 46.49 cm³
Molar Volume: 105.5 cm³
Density: 1.83 g/cm³
Melting point: 260 °C 
Polarizability: 18.43 10^-24cm³
Surface Tension: 82.1 dyne/cm
Water Solubility: practically insoluble 
Appearance of Acetamide,N-(6,9-dihydro-6-oxo-1H-purin-2-yl)- (CAS NO.19962-37-9): White Crystalline
Product Categories: Nucleotides and Nucleosides; 5-FOA; Bases & Related Reagents; Nucleotides
Canonical SMILES: CC(=O)NC1=NC(=O)C2=C(N1)N=CN2
InChI: InChI=1S/C7H7N5O2/c1-3(13)10-7-11-5-4(6(14)12-7)8-2-9-5/h2H,1H3,(H3,8,9,10,11,12,13,14)
InChIKey: MXSMRDDXWJSGMC-UHFFFAOYSA-N

 Acetamide,N-(6,9-dihydro-6-oxo-1H-purin-2-yl)- (CAS NO.19962-37-9) hasn't been listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. And the toxicological properties have not been fully investigated.

Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 24/25-36-26 
S24/25:Avoid contact with skin and eyes. 
S36:Wear suitable protective clothing. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

 Acetamide,N-(6,9-dihydro-6-oxo-1H-purin-2-yl)- , its cas register number 19962-37-9. It also can be called N-(6-Oxo-6,7-dihydro-1H-purin-2-yl)acetamide ; N-2-Acetylguanine ; and N-(6-Oxo-3,7-dihydropurin-2-yl)acetamide . 
 Acetamide,N-(6,9-dihydro-6-oxo-1H-purin-2-yl)- (CAS NO.19962-37-9) could be stable under normal temperatures and pressures. It should avoid the condition like incompatible materials. It is not compatible with strong oxidizing agents. And also prevent it to broken down into hazardous decomposition products: carbon monoxide, carbon dioxide. However, its hazardous polymerization has not been reported.