PQ 401

1-(5-氯-2-甲氧基苯基)-3-(2-甲基喹啉-4-基)脲

Also known as: PQ401, IGF-1R Inhibitor II, N-(5-Chloro-2-methoxyphenyl)-N'-(2-methyl-4-quinolinyl)urea, 1-(5-Chloro-2-methoxyphenyl)-3-(2-methylquinolin-4-yl)urea, N-(5-Chloro-2-methoxyphenyl)-N'-(2-methylquinolin-4-yl)urea, TCMDC-125497, UNII-2N3LV83S8J

PQ 401 (CAS 196868-63-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H16ClN3O2 and a molecular weight of 341.792 g/mol. It is also known as PQ401, IGF-1R Inhibitor II and N-(5-Chloro-2-methoxyphenyl)-N'-(2-methyl-4-quinolinyl)urea. Key properties include a melting point of 190 °C(dec.), a boiling point of 426.1±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 211.5±28.7 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
196868-63-0
Jingsj CID
J-1987612-4
Molecular Formula
C18H16ClN3O2
Chinese Name
1-(5-氯-2-甲氧基苯基)-3-(2-甲基喹啉-4-基)脲
Molecular Weight
341.792 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point190 °C(dec.)
Boiling Point426.1±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point211.5±28.7 °C

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

Frequently Asked Questions

What is the CAS number of PQ 401?

The CAS number of PQ 401 is 196868-63-0.

What are the molecular formula and molecular weight of PQ 401?

PQ 401 has molecular formula C18H16ClN3O2 and molecular weight 341.792 g/mol.

Is PQ 401 hazardous?

PQ 401 has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "PQ 401 (CAS 196868-63-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1987612-4 (accessed 2026-10-25).

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