Melting point :108-110 °C (lit.)
Boiling point :185.55°C (rough estimate)
Density :1.3131 (rough estimate)
refractive index :1.4500 (estimate)
storage temp. :Keep in dark place,Sealed in dry,Room Temperature
solubility :DMSO : 150 mg/mL (1513.78 mM)
form :powder to crystal
pka :pK1:2.34(+2);pK2:11.17(+1) (25°C)
color :White to Light yellow to Light orange
Water Solubility :almost transparency
Merck :14,2680
BRN :1751498
CAS DataBase Reference :140-87-4(CAS DataBase Reference)
NIST Chemistry Reference :Alpha-cyanoacetic acid, hydrazide(140-87-4)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.