4-Aminoantipyrine
4-氨基安替比林
Also known as: 4-Aminophenazone, Ampyrone, 4-AA, 4-Amino-1,5-dimethyl-2-phenyl-3-pyrazolone, Metamizole EP Impurity B
4-Aminoantipyrine (CAS 198-37-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H12N2O and a molecular weight of 308.34 g/mol. It is also known as 4-Aminophenazone, Ampyrone and 4-AA. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 198-37-8
- Jingsj CID
- J-998964-5
- Molecular Formula
- C21H12N2O
- Chinese Name
- 4-氨基安替比林
- Molecular Weight
- 308.34 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quoteFrequently Asked Questions
What is the CAS number of 4-Aminoantipyrine?
The CAS number of 4-Aminoantipyrine is 198-37-8.
What are the molecular formula and molecular weight of 4-Aminoantipyrine?
4-Aminoantipyrine has molecular formula C21H12N2O and molecular weight 308.34 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Aminoantipyrine (CAS 198-37-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-998964-5 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.