4-Amino-1H-pyrazole

Modify Date: 2024-01-03 10:56:24

4-Amino-1H-pyrazole Structure
4-Amino-1H-pyrazole structure
Common Name 4-Amino-1H-pyrazole
CAS Number 28466-26-4 Molecular Weight 83.092
Density 1.3±0.1 g/cm3 Boiling Point 334.5±15.0 °C at 760 mmHg
Molecular Formula C3H5N3 Melting Point 75-77ºC
MSDS Chinese USA Flash Point 182.6±7.6 °C
Symbol GHS07
GHS07
Signal Word Warning

 Names

Name 1H-pyrazol-4-amine
Synonym More Synonyms

 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

 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
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

~96%

4-Amino-1H-pyrazole Structure

4-Amino-1H-pyrazole

CAS#:28466-26-4

Literature: Park, Sungho; Lee, In Su; Park, Jaiwook Organic and Biomolecular Chemistry, 2013 , vol. 11, # 3 p. 395 - 399

~%

4-Amino-1H-pyrazole Structure

4-Amino-1H-pyrazole

CAS#:28466-26-4

Literature: Bertho; Nuessel Justus Liebigs Annalen der Chemie, 1927 , vol. 457, p. 292

~%

4-Amino-1H-pyrazole Structure

4-Amino-1H-pyrazole

CAS#:28466-26-4

Literature: Wollers Justus Liebigs Annalen der Chemie, 1902 , vol. 323, p. 281

~%

4-Amino-1H-pyrazole Structure

4-Amino-1H-pyrazole

CAS#:28466-26-4

Literature: Knorr Chemische Berichte, 1904 , vol. 37, p. 3501

 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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 Synonyms

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