1820-80-0

Name 3-Aminopyrazole
CAS 1820-80-0
EINECS(EC#) 217-338-1
Molecular Formula C3H5N3
MDL Number MFCD00005236
Molecular Weight 83.09
MOL File 1820-80-0.mol

Chemical Properties

Appearance Low-Melting Yellow Solid
Melting point  34-37 °C (lit.)
Boiling point  218 °C/122 mmHg (lit.)
density  1.0248 (rough estimate)
refractive index  1.5060 (estimate)
Fp  >230 °F
storage temp.  2-8°C
solubility  soluble in Methanol
form  Oily Liquid or Crystalline Low Melting Solid
pka 15.28±0.10(Predicted)
color  White to light yellow
Sensitive  Air & Light Sensitive
Usage Used in the preparation of heterocyclic compounds of pharamaceutical interest
Detection Methods GC.NMR
BRN  1618
InChI 1S/C3H5N3/c4-3-1-2-5-6-3/h1-2H,(H3,4,5,6)
InChIKey JVVRJMXHNUAPHW-UHFFFAOYSA-N
SMILES Nc1cc[nH]n1
CAS DataBase Reference 1820-80-0(CAS DataBase Reference)
NIST Chemistry Reference 3(5)-aminopyrazole(1820-80-0)

Safety Data

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)
GHS05,GHS07
Signal word  Danger
Hazard statements  H302-H314
Precautionary statements  P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338
Hazard Codes  C,Xi
Risk Statements 
R22:Harmful if swallowed.
R34:Causes burns.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
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 .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S27:Take off immediately all contaminated clothing .
RIDADR  UN 3263 8/PG 2
WGK Germany  3
F  8-10-23
Hazard Note  Corrosive
REACH Registrations Active
HazardClass  8
HazardClass  IRRITANT
PackingGroup  Ⅱ
HS Code  29331900
Storage Class 8A - Combustible corrosive hazardous materials
Hazard Classifications Acute Tox. 4 Oral
Eye Dam. 1
Skin Corr. 1B

Hazard Information

Material Safety Data Sheet(MSDS)

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