Mefenpyr
吡唑解草酸
Also known as: Mefenpyr, 1-(2,4-dichlorophenyl)-4,5-dihydro-5-methyl-1H-pyrazole-3,5-dicarboxylic acid, (RS)-1-(2,4-dichlorophenyl)-5-methyl-2-pyrazoline-3,5-dicarboxylic acid
Mefenpyr (CAS 135591-00-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H10Cl2N2O4 and a molecular weight of 317.12500 g/mol. It is also known as 1-(2,4-dichlorophenyl)-4,5-dihydro-5-methyl-1H-pyrazole-3,5-dicarboxylic acid and (RS)-1-(2,4-dichlorophenyl)-5-methyl-2-pyrazoline-3,5-dicarboxylic acid. Key properties include a boiling point of 533.3ºC at 760 mmHg and a density of 1.61 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 135591-00-3
- Jingsj CID
- J-1518653-9
- Molecular Formula
- C12H10Cl2N2O4
- Chinese Name
- 吡唑解草酸
- Molecular Weight
- 317.12500 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 533.3ºC at 760 mmHg |
|---|---|
| Density | 1.61 g/cm3 |
Frequently Asked Questions
What is the CAS number of Mefenpyr?
The CAS number of Mefenpyr is 135591-00-3.
What are the molecular formula and molecular weight of Mefenpyr?
Mefenpyr has molecular formula C12H10Cl2N2O4 and molecular weight 317.12500 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Mefenpyr (CAS 135591-00-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1518653-9 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.