- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: 1,2-Dihydro-3H-pyrazol-3-one
- Price: Check
- Purity: 98.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: 1,2-Dihydro-3H-pyrazol-3-one
- Price: ￥278.0/250mg ￥648.0/1g
- Purity: 98.0%
- Stocking Period: 2 Day
- Contact: Liu jia
- Email: 2130147988@qq.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: 3H-Pyrazol-3-one,1,2-dihydro-
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
- Henan Tianfu Chemical Co., Ltd.
- China
- Product Name: 1H-Pyrazol-3(2H)-one
- Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
- Purity: 99.0%
- Stocking Period: Inquiry
- Contact: Anson
- Email: info@tianfuchem.com
137-45-1
137-45-1 structure
- Name: 1,2-Dihydro-3H-pyrazol-3-one
- Chemical Name: 1H-Pyrazol-3(2H)-one
- CAS Number: 137-45-1
- Molecular Formula: C3H4N2O
- Molecular Weight: 84.077
- Create Date: 2018-02-22 08:00:00
- Modify Date: 2025-08-25 07:34:50
| Name | 1H-Pyrazol-3(2H)-one |
|---|---|
| Synonyms |
1H-pyrazol-3-ol
1H-Pyrazol-5-ol 3h-pyrazol-3-one, 1,2-dihydro- |
| Density | 1.4±0.1 g/cm3 |
|---|---|
| Boiling Point | 326.1±15.0 °C at 760 mmHg |
| Melting Point | 163 °C |
| Molecular Formula | C3H4N2O |
| Molecular Weight | 84.077 |
| Flash Point | 151.0±20.4 °C |
| Exact Mass | 84.032364 |
| PSA | 48.65000 |
| LogP | 0.25 |
| Vapour Pressure | 0.0±0.7 mmHg at 25°C |
| Index of Refraction | 1.612 |
| Hazard Codes | Xi |
|---|
| Precursor 0 | |
|---|---|
| DownStream 1 | |
