IUPAC Name: 2-Hydrazinyl-2-oxoacetamide
CAS: 515-96-8
Formula: C₂H₅N₃O₂
Molecular Weight: 103.08
Molecular Structure of 2-Hydrazinyl-2-oxoacetamide (CAS NO.515-96-8):

Index of Refraction: 1.524
Melting Point: 216-218 °C (dec.)(lit.)  
Molar Refractivity: 22.03 cm³ 
Molar Volume: 71.9 cm³ 
Polarizability: 8.73×10^-24cm³ 
Surface Tension: 69.6 dyne/cm 
Density: 1.432 g/cm³
Appearance: white powder
Water Solubility: 1e+006(mg/L)at 25°C

A poison by intraperitoneal route. When heated to decomposition it emits toxic vapors of NO_x.
Safety Information about 2-Hydrazinyl-2-oxoacetamide (CAS NO.515-96-8):
Hazard Codes: 
T:
Risk Statements about 2-Hydrazinyl-2-oxoacetamide (CAS NO.515-96-8):
R25: Toxic if swallowed.
Safety Statements about 2-Hydrazinyl-2-oxoacetamide (CAS NO.515-96-8):
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).
S24/25: Avoid contact with skin and eyes.
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
RTECS: AF2620000

  2-Hydrazinyl-2-oxoacetamide with CAS number of 515-96-8 is also called for Aminooxo-aceticacihydrazide ; Carbamoylformicacidhydrazide ; N-Aminooxamide ; Semioxamazid ; Labotest-bb lt00848024 ; Amino-oxamide ; Semioxamazide ; Oxamic acid hydrazide . If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Store in a cool, dry place. Keep container closed when not in use.