3-Aminopyrazole
- CAS No.
- 1820-80-0
- Chemical Name:
- 3-Aminopyrazole
- Synonyms
- 1H-PYRAZOL-3-AMINE;3-Bromo-2-chloropyridine-4-carboxylic acid;1H-PYRAZOL-3-YLAMINE;5-AMINOPYRAZOLE;3(5)-Aminopyrazole;NSC 76122;INDIP-021;AKOS B007331;3-PYRAZOLAMINE;3-AMINOPYRAZOL
- CBNumber:
- CB2322586
- Molecular Formula:
- C3H5N3
- Molecular Weight:
- 83.09
- MDL Number:
- MFCD00005236
- MOL File:
- 1820-80-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 3-Aminopyrazole 98% | 160644 | 2.5g | $96.7 |
| 3-Aminopyrazole 98% | 160644 | 10g | $313 |
| 3-Aminopyrazole >98.0%(GC)(T) | A1859 | 5g | $30 |
| 3-Aminopyrazole >98.0%(GC)(T) | A1859 | 25g | $84 |
| 3-Aminopyrazole | A1380-17 | 10g | $418 |
| More product size | |||
| Melting point | 34-37 °C (lit.) |
|---|---|
| Boiling point | 218 °C/122 mmHg (lit.) |
| Density | 1.0248 (rough estimate) |
| refractive index | 1.5060 (estimate) |
| Flash point | >230 °F |
| storage temp. | Keep in dark place,Inert atmosphere,2-8°C |
| solubility | soluble in Methanol |
| pka | 15.28±0.10(Predicted) |
| form | Oily Liquid or Crystalline Low Melting Solid |
| color | White to light yellow |
| Sensitive | Air & Light Sensitive |
| 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) |
| NCI Dictionary of Cancer Terms | 3-AP |
| NIST Chemistry Reference | 3(5)-aminopyrazole(1820-80-0) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H314 | |||||||||
| Precautionary statements | P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges | |||||||||
| Hazard Codes | C,Xi | |||||||||
| Risk Statements | 22-34-36/37/38 | |||||||||
| Safety Statements | 26-36/37/39-45-27 | |||||||||
| RIDADR | UN 3263 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 8-10-23 | |||||||||
| Hazard Note | Corrosive | |||||||||
| HazardClass | IRRITANT | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | Ⅱ | |||||||||
| HS Code | 29331990 | |||||||||
| Storage Class | 8A - Combustible corrosive hazardous materials | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Eye Dam. 1 Skin Corr. 1B |
|||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
3-Aminopyrazole price More Price(111)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 160644 | 3-Aminopyrazole 98% | 1820-80-0 | 2.5g | $96.7 | 2026-04-30 | Buy |
| Sigma-Aldrich | 160644 | 3-Aminopyrazole 98% | 1820-80-0 | 10g | $313 | 2026-04-30 | Buy |
| TCI Chemical | A1859 | 3-Aminopyrazole >98.0%(GC)(T) | 1820-80-0 | 5g | $30 | 2026-04-30 | Buy |
| TCI Chemical | A1859 | 3-Aminopyrazole >98.0%(GC)(T) | 1820-80-0 | 25g | $84 | 2026-04-30 | Buy |
| Usbiological | A1380-17 | 3-Aminopyrazole | 10g | $418 | 2026-06-03 | Buy |
3-Aminopyrazole Chemical Properties,Uses,Production
Chemical Properties
3-Aminopyrazole is Low-Melting Yellow Solid
Uses
3-Aminopyrazole is used in the preparation of heterocyclic compounds of pharamaceutical interest
Uses
Employed in a one-pot synthesis of pyrazolopyrimidines.1
Uses
3-Aminopyrazole was used in the spectroscopic characterization of ferrocenoyl peptides via 1H-NMR spectroscopy. It was also used in the synthesis of:
- symmetrical dialkylpyrazolo[1,5-a]pyrimidines via condensation with symmetrical β-diketones
- 3,4-annelated coumarins
- heterocyclic compounds of pharmaceutical interest
- pyrazolopyrimidines
General Description
3-Aminopyrazole is a heteroarylamine.
Synthesis
The synthesis of 3-Aminopyrazole is as follows:A solution of 50 mg (0.34 mmol) of 3-oxo-3-phenylpropanenitrile and 11.6 mg (0.36 mmol) of hydrazine and 0.024 mL of acetic acid (0.37 mmol) in 3 mL of anhydrous ethanol was heated at 60° C for 24 hr. The mixture was cooled to ambient temperature and the solvent removed in vacuo. The residue was taken up in ethyl acetate, washed with saturated sodium bicarbonate. The organic layer was washed with brine and dried over MgSO4, filtered and evaporated. The solid residue waswashedwithethyl ether and dried in vacuo to give 45 mg (82%) of 3-phenyl-1H-pyrazol-5-amine.
3-Aminopyrazole Preparation Products And Raw materials
Raw materials
Preparation Products
1of3
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Nanjing Yushan Wanfang Biotechnology Co., Ltd. | +86-025-84918180 +86-18014482516 | 3552541679@qq.com | China | 997 | 58 |
| Nanjing Triumpharm Co.,Ltd | +86-02586182925 +86-15105172550 | info@triumpharm.com | China | 129 | 58 |
| Hubei Deli Pharmaceutical Technology Co., Ltd. | +86-13372285931 19237964946 | dl@delipharm.com | China | 97 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5228 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 | product@chemlin.com.cn | CHINA | 3009 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29815 | 58 |
View Lastest Price from 3-Aminopyrazole manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-06-04 | 3-Aminopyrazole
1820-80-0
|
1kg | 98% | 20TON | Hubei Lidu New Material Technology Co., Ltd | ||
 |
2026-05-28 | 3-Aminopyrazole
1820-80-0
|
$10.00 | 1KG | 99.% | 10 ton | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-03-20 | 3-Aminopyrazole
1820-80-0
|
$9.90 | 100KG | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-
- 3-Aminopyrazole
1820-80-0
- $0.00
- 98%
- Hubei Lidu New Material Technology Co., Ltd
-
- 3-Aminopyrazole
1820-80-0
- $10.00
- 99.%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- 3-Aminopyrazole
1820-80-0
- $9.90
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
