- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: alpha-pyrone
- Price:
- Purity: 98.0%
- Stocking Period: 10 Day
- Contact: Yang
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: alpha-pyrone
- Price: ￥1578.0/1g
- Purity: 97.0%
- Stocking Period: Inquiry
- Contact: Liu jia
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: 2H-pyran-2-one
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
504-31-4
504-31-4 structure
- Name: alpha-pyrone
- Chemical Name: 2H-pyran-2-one
- CAS Number: 504-31-4
- Molecular Formula: C5H4O2
- Molecular Weight: 96.08410
- Catalog: Pharmaceutical intermediate Heterocyclic compound Pyran compound
- Create Date: 2018-09-04 17:52:13
- Modify Date: 2024-01-02 16:11:52
| Name | 2H-pyran-2-one |
|---|---|
| Synonyms |
2H-Pyran-2-one
EINECS 207-990-5 MFCD00006639 |
| Density | 1.192g/cm3 |
|---|---|
| Boiling Point | 102-103ºC20 mm Hg(lit.) |
| Melting Point | 41860ºC |
| Molecular Formula | C5H4O2 |
| Molecular Weight | 96.08410 |
| Flash Point | 89.2ºC |
| Exact Mass | 96.02110 |
| PSA | 30.21000 |
| LogP | 0.63980 |
| Index of Refraction | n20/D 1.53(lit.) |
| Storage condition | Refrigerator (+4°C) |
| Safety Phrases | 23-24/25 |
|---|---|
| WGK Germany | 3 |
| HS Code | 2932999099 |
| Precursor 7 | |
|---|---|
| DownStream 10 | |
![exo-10-oxatricyclo[5.2.1.02,6]deca-4,8-dien-3-one structure](https://image.chemsrc.com/caspic/143/64919-86-4.png)
![3-oxabicyclo[2.2.0]hex-5-en-2-one structure](https://image.chemsrc.com/caspic/476/22980-23-0.png)
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |