Cinnoline-4-carboxylic acid
噌啉-4-羧酸
Also known as: 4-Cinnolinecarboxylic acid, Cinnoline-4-carboxylic acid 97%, Cinnolinecarboxylic acid, 4-Carboxycinnoline, AIDS-125543, MFCD00006813, EINECS 244-650-5
Cinnoline-4-carboxylic acid (CAS 21905-86-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H6N2O2 and a molecular weight of 174.15600 g/mol. It is also known as 4-Cinnolinecarboxylic acid, Cinnoline-4-carboxylic acid 97% and Cinnolinecarboxylic acid. Key properties include a melting point of 175ºC (dec.)(lit.), a boiling point of 423.7ºC at 760mmHg, a density of 1.421g/cm3 and a flash point of 210.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21905-86-2
- Jingsj CID
- J-32221-0
- Molecular Formula
- C9H6N2O2
- Chinese Name
- 噌啉-4-羧酸
- Molecular Weight
- 174.15600 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 175ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 423.7ºC at 760mmHg |
| Density | 1.421g/cm3 |
| Flash Point | 210.1ºC |
Frequently Asked Questions
What is the CAS number of Cinnoline-4-carboxylic acid?
The CAS number of Cinnoline-4-carboxylic acid is 21905-86-2.
What are the molecular formula and molecular weight of Cinnoline-4-carboxylic acid?
Cinnoline-4-carboxylic acid has molecular formula C9H6N2O2 and molecular weight 174.15600 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Cinnoline-4-carboxylic acid (CAS 21905-86-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32221-0 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.