497-18-7

Name Carbohydrazide
CAS 497-18-7
EINECS(EC#) 207-837-2
Molecular Formula CH6N4O
MDL Number MFCD00007591
Molecular Weight 90.08
MOL File 497-18-7.mol

Chemical Properties

Appearance white powder
Melting point  150-153 °C (lit.)
Boiling point  167.26°C (rough estimate)
density  1.02
vapor pressure  0Pa at 25℃
refractive index  1.4164 (estimate)
storage temp.  0-6°C
solubility  DMSO (Slightly), Water (Slightly)
form  Crystalline Powder
pka 11.81±0.20(Predicted)
color  White
Stability: Stable, but may explode if heated. Incompatible with strong acids, strong oxidizing agents.
Water Solubility  Soluble in water.
Merck  14,1804
BRN  1747069
InChI 1S/CH6N4O/c2-4-1(6)5-3/h2-3H2,(H2,4,5,6)
InChIKey XEVRDFDBXJMZFG-UHFFFAOYSA-N
SMILES NNC(=O)NN
LogP -2.94 at 21.6℃
Uses
Organic intermediate and photographic chemical.
CAS DataBase Reference 497-18-7(CAS DataBase Reference)
NIST Chemistry Reference Carbonic dihydrazide(497-18-7)
EPA Substance Registry System 497-18-7(EPA Substance)

Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)Environment (GHS09)
GHS07,GHS09
Signal word  Warning
Hazard statements  H302-H315-H317-H411
Precautionary statements  P273-P280-P301+P312+P330-P302+P352
Hazard Codes  Xi,N,Xn
Risk Statements 
R5:Heating may cause an explosion.
R22:Harmful if swallowed.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R43:May cause sensitization by skin contact.
R38:Irritating to the skin.
Safety Statements 
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S36/37:Wear suitable protective clothing and gloves .
RIDADR  UN3077
WGK Germany  3
RTECS  FF2625000
TSCA  Yes
HazardClass  9
PackingGroup  III
HS Code  29280000
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Aquatic Chronic 2
Skin Irrit. 2
Skin Sens. 1
Safety Profile
Poison by intravenous and intraperitoneal routes. Reacts with nitrous acid to form the explosive carbonic dazide. When heated to decomposition it emits toxic fumes of NOx.

Hazard Information

Material Safety Data Sheet(MSDS)

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