IUPAC Name: Formohydrazide
The MF of Formohydrazide (CAS NO.624-84-0) is CH₄N₂O.

                          
The MW of Formohydrazide (CAS NO.624-84-0) is 60.06.
Synonyms of Formohydrazide (CAS NO.624-84-0): Formic hydrazide ; Hydrazine, formyl- ; Formic acid hydrazide ; Carbazaldehyde ; Formhydrazid
Apperance: white shiny crystalline flakes
Index of Refraction: 1.424 
EINECS: 210-867-9
Density: 1.094 g/ml 
Flash Point: 32.2 °C 
Boiling Point: 129.7 °C
Melting Point: 54-56 °C
Storage temp: 2-8 °C
Water Solubility: Soluble
Sensitive: Hygroscopic
BRN: 635759

  Formohydrazide (CAS NO.624-84-0) is used in organic synthesis.

Be careful to join the 85% hydrazine hydrate and 95% ethyl alcohol solution,stirring 10min. When the relaxation response,making the reaction solution refluxed 18h, vacuuming steam out of most of the water and ethanol.It was tilting crude syrup, and further refined to be finished formyl hydrazine.

Reported in EPA TSCA Inventory.

Poison by intraperitoneal and subcutaneous routes. Questionable carcinogen with experimental neoplastigenic data. When heated to decomposition it emits toxic fumes of NO_x. See also HYDRAZINE.Safety information of Formohydrazide (CAS NO.624-84-0):
Hazard Codes  Xi,Xn
Risk Statements 
36/37/38 Irritating to eyes, respiratory system and skin
20/21/22 Harmful by inhalation, in contact with skin and if swallowed
Safety Statements 
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39 Wear suitable protective clothing, gloves and eye/face protection
WGK Germany  3
RTECS  LQ8615000
F  3-8-10