4-aminoantipyrine hydrochloride
Also known as: 4-AA·HCl, 4-AA HCl, Ampyrone hydrochloride, 4-Aminoantipyrine HCl, 4-Amino-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one hydrochloride, 4-Amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one hydrochloride, 3H-Pyrazol-3-one, 4-amino-1,2-dihydro-1,5-dimethyl-2-phenyl-, hydrochloride (1:1), MFCD00042012
4-aminoantipyrine hydrochloride (CAS 22198-72-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H14ClN3O and a molecular weight of 239.70 g/mol. Key properties include a melting point of 220-225 °C, a boiling point of 309ºC at 760 mmHg and a flash point of 140.7ºC. It is listed by 3 suppliers, 2 of which publish reference prices, from 11.64 to 25.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 22198-72-7
- Jingsj CID
- J-1133319-1
- Molecular Formula
- C11H14ClN3O
- Molecular Weight
- 239.70 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 99% 500g | ¥5,820.00 | $1.74 /gBest ¥11.64/g CNY | CN China MOQ 500g | |
In Stock | >98.0%(HPLC)(T) 25g | ¥414.00 | $2.48 /g ¥16.56/g CNY | CN China MOQ 25g | |
In Stock | >98.0%(HPLC)(T) 5g | ¥88.00 | $2.63 /g ¥17.60/g CNY | CN China MOQ 5g |
Physicochemical Properties
| Melting Point | 220-225 °C |
|---|---|
| Boiling Point | 309ºC at 760 mmHg |
| Flash Point | 140.7ºC |
| Exact Mass | 239.082535 |
| PSA | 52.95000 |
| LogP | 2.44980 |
| Vapor Pressure | 0.000659mmHg at 25°C |
Customs & Trade Information
| 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% |
Frequently Asked Questions
What is the CAS number of 4-aminoantipyrine hydrochloride?
The CAS number of 4-aminoantipyrine hydrochloride is 22198-72-7.
What are the molecular formula and molecular weight of 4-aminoantipyrine hydrochloride?
4-aminoantipyrine hydrochloride has molecular formula C11H14ClN3O and molecular weight 239.70 g/mol.
Which suppliers offer 4-aminoantipyrine hydrochloride?
3 supplier(s) listed; reference unit price ¥11.64–25.00 /g.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-aminoantipyrine hydrochloride (CAS 22198-72-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1133319-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.