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26621-44-3

Name 3-Nitro-1H-pyrazole
CAS 26621-44-3
EINECS(EC#) 640-509-0
Molecular Formula C3H3N3O2
MDL Number MFCD00238787
Molecular Weight 113.07
MOL File 26621-44-3.mol
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Chemical Properties

Appearance light brown powder
Melting point  173-175 °C
Boiling point  334.0±15.0 °C(Predicted)
density  1.552±0.06 g/cm3(Predicted)
storage temp.  Sealed in dry,Room Temperature
solubility  soluble in Methanol
form  powder to crystal
pka 8.32±0.10(Predicted)
color  White to Orange to Green
InChI InChI=1S/C3H3N3O2/c7-6(8)3-1-2-4-5-3/h1-2H,(H,4,5)
InChIKey MZRUFMBFIKGOAL-UHFFFAOYSA-N
SMILES N1C=CC([N+]([O-])=O)=N1
CAS DataBase Reference 26621-44-3(CAS DataBase Reference)
NIST Chemistry Reference 3(5)-nitropyrazole(26621-44-3)

Safety Data

Hazard Codes  Xn
Risk Statements 
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S22:Do not breathe dust .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
HazardClass  IRRITANT
HS Code  2933199090

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