7-Amino-4-methylquinolin-2(1H)-one

7-氨基-4-甲基-2-喹啉酮

Also known as: Carbostyril 124, Carbostyril 7, 7-Amino-4-methyl-2(1H)-quinolinone, 7-Amino-4-methyl-2-quinolinol, 7-Amino-4-methyl-2-quinolone, 7-Amino-4-methyl-2-hydroxyquinoline, 7-Amino-4-methyl-1H-quinolin-2-one, 4-Methylcarbostyril, 2(1H)-Quinolinone, 7-amino-4-methyl-, 7-Amino-4-methylhydroquinolin-2-one, 7-Amino-4-methylquinolin-2(1H)-one

7-Amino-4-methylquinolin-2(1H)-one (CAS 19840-99-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10N2O and a molecular weight of 174.199 g/mol. It is also known as Carbostyril 124, Carbostyril 7 and 7-Amino-4-methyl-2(1H)-quinolinone. Key properties include a melting point of >275ºC (dec.), a boiling point of 417.6±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 206.4±28.7 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19840-99-4
Jingsj CID
J-10799-6
Molecular Formula
C10H10N2O
Chinese Name
7-氨基-4-甲基-2-喹啉酮
Molecular Weight
174.199 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point>275ºC (dec.)
Boiling Point417.6±45.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point206.4±28.7 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 7-Amino-4-methylquinolin-2(1H)-one?

The CAS number of 7-Amino-4-methylquinolin-2(1H)-one is 19840-99-4.

What are the molecular formula and molecular weight of 7-Amino-4-methylquinolin-2(1H)-one?

7-Amino-4-methylquinolin-2(1H)-one has molecular formula C10H10N2O and molecular weight 174.199 g/mol.

Is 7-Amino-4-methylquinolin-2(1H)-one hazardous?

7-Amino-4-methylquinolin-2(1H)-one has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "7-Amino-4-methylquinolin-2(1H)-one (CAS 19840-99-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10799-6 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.