4-Amino-1H-pyrazole

Names

[ Name ]:
4-Amino-1H-pyrazole

[Synonym ]:
1H-pyrazole-4-amine
3-pyrazolylamine
4-NH2-pyrazole
1H-Pyrazol-4-amine
4-Amino-1H-pyrazole
Pyrazole,4-amino
1H-Pyrazol-5-amine
4-Aminopyrazole
1H-PYRAZOL-4-YLAMINE
1H-pyrazol-3-amine
pyrazole-4-ylamine

Chemical & Physical Properties

[ Density]:
1.3±0.1 g/cm3

[ Boiling Point ]:
334.5±15.0 °C at 760 mmHg

[ Melting Point ]:
75-77ºC

[ Molecular Formula ]:
C₃H₅N₃

[ Molecular Weight ]:
83.092

[ Flash Point ]:
182.6±7.6 °C

[ Exact Mass ]:
83.048347

[ PSA ]:
54.70000

[ LogP ]:
-1.10

[ Vapour Pressure ]:
0.0±0.7 mmHg at 25°C

[ Index of Refraction ]:
1.648

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UQ4993000

CHEMICAL NAME :: Pyrazole, 4-amino-

CAS REGISTRY NUMBER :: 28466-26-4

BEILSTEIN REFERENCE NO. :: 0001619

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C3-H5-N3

MOLECULAR WEIGHT :: 83.11

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >800 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FRPSAX Farmaco, Edizione Scientifica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 25,592,1970

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H302-H315-H319-H335

[ Precautionary Statements ]:
P261-P305 + P351 + P338

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Faceshields;Gloves

[ Hazard Codes ]:
Xi: Irritant;

[ RIDADR ]:
NONH for all modes of transport

[ RTECS ]:
UQ4993000

[ HS Code ]:
2933199090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2933199090

[ Summary ]:
2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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