Clopirac
氯苯吡乙酸
Also known as: 1-(4-chlorophenyl)-2,5-dimethyl-1H-pyrrole-3-acetic acid, 2-[1-(4-chlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]acetic acid, 2-[1-(4-chlorophenyl)-2,5-dimethylpyrrol-3-yl]acetic acid, 1H-Pyrrole-3-acetic acid, 1-(4-chlorophenyl)-2,5-dimethyl-, BRL-13856, CP-172AP, CP 172AP, EINECS 255-938-5
Clopirac (CAS 42779-82-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H14ClNO2 and a molecular weight of 263.71900 g/mol. It is also known as 1-(4-chlorophenyl)-2,5-dimethyl-1H-pyrrole-3-acetic acid, 2-[1-(4-chlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]acetic acid and 2-[1-(4-chlorophenyl)-2,5-dimethylpyrrol-3-yl]acetic acid. Key properties include a boiling point of 429.1ºC at 760mmHg, a density of 1.23g/cm3 and a flash point of 213.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 42779-82-8
- Jingsj CID
- J-1960580-9
- Molecular Formula
- C14H14ClNO2
- Chinese Name
- 氯苯吡乙酸
- Molecular Weight
- 263.71900 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 429.1ºC at 760mmHg |
|---|---|
| Density | 1.23g/cm3 |
| Flash Point | 213.3ºC |
| Exact Mass | 263.07100 |
| PSA | 42.23000 |
| LogP | 3.37460 |
Activity & Biological Data
| Target | prostaglandin synthetase[1] |
|---|---|
| Additional Information | [1]. Roba J, et al. Etude pharmacologique d'un nouvel anti-inflammatoire non stéroïdien, le clopirac [Pharmacological study of clopirac, a new anti-inflammatory agent (author's transl)]. J Belge Rhumatol Med Phys. 1975;30 Spec no:3-24. |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 Clopirac?
The CAS number of Clopirac is 42779-82-8.
What are the molecular formula and molecular weight of Clopirac?
Clopirac has molecular formula C14H14ClNO2 and molecular weight 263.71900 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Clopirac (CAS 42779-82-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1960580-9 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.