IUPAC Name: N-ethyl-N-(2-hydroxyethyl)nitrous amide 
Empirical Formula: C₄H₁₀N₂O₂
Molecular Weight: 118.1344g/mol 
Index of Refraction: 1.469
Molar Refractivity: 29.5 cm³
Molar Volume: 105.7 cm³
Polarizability: 11.69×10^-24cm³
Surface Tension: 40.2 dyne/cm
Density: 1.11 g/cm³
Flash Point: 119.2 °C
Enthalpy of Vaporization: 59.41 kJ/mol
Boiling Point: 273.4 °C at 760 mmHg
Vapour Pressure: 0.000735 mmHg at 25°C 
storage temp: Refrigerator
Canonical SMILES: CCN(CCO)N=O
InChI: InChI=1S/C4H10N2O2/c1-2-6(5-8)3-4-7/h7H,2-4H2,1H3
InChIKey: HNQBPUIXFDQDRJ-UHFFFAOYSA-N
Structure of Ethyl-2-hydroxyethylnitrosamine (CAS NO.13147-25-6):

IARC Cancer Review: Animal Limited Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 17 , 1978,p. 83.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . EPA Genetic Toxicology Program.

RTECS: KL0350000
Suspected carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Mutation data reported. Explodes when heated to 170°C. When heated to decomposition it emits toxic fumes of NO_x. See also NITROSAMINES.

  Ethyl-2-hydroxyethylnitrosamine , its cas register number is 13147-25-6. It also can be called 2-(Ethylnitrosamino)ethanol ;
 Aethyl-aethanol-nitrosoamin ; BRN 2073939 ; CCRIS 1024 ; EENA ; Ethyl(hydroxyethyl)nitrosamine ;
 Ethylethanolnitrosamine ; N-Ethyl-N-hydroxyethylnitrosamine ; N-Nitroso-N-ethyl-N-(2-hydroxyethyl)amine ; N-Nitrosoaethylaethanolamin ; N-Nitrosoethyl-2-hydroxyethylamine ; N-Nitrosoethylethanolamine .