Koenimbine

O-甲基柯氏九里香酚碱

Also known as: 3,11-Dihydro-8-methoxy-3,3,5-trimethylpyrano[3,2-a]carbazole, 8-Methoxy-3,3,5-trimethyl-3,11-dihydro-chromeno[5,6-b]indole, 8-methoxy-3,3,5-trimethyl-11H-pyrano[3,2-a]carbazole, Kenimbine, Koenimbin, Koenimbine-RM, NSC 127152, O-methyl mukonal, Pyrano[3,2-a]carbazole, 3,11-dihydro-8-methoxy-3,3,5-trimethyl-

Koenimbine (CAS 21087-98-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C19H19NO2 and a molecular weight of 293.36 g/mol. It is also known as 3,11-Dihydro-8-methoxy-3,3,5-trimethylpyrano[3,2-a]carbazole, 8-Methoxy-3,3,5-trimethyl-3,11-dihydro-chromeno[5,6-b]indole and 8-methoxy-3,3,5-trimethyl-11H-pyrano[3,2-a]carbazole. Key properties include a melting point of 194-195℃, a boiling point of 482.1ºC at 760 mmHg, a density of 1.193g/cm3 and a flash point of 171.8ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21087-98-9
Jingsj CID
J-1112163-5
Molecular Formula
C19H19NO2
Chinese Name
O-甲基柯氏九里香酚碱
Molecular Weight
293.36 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point194-195℃
Boiling Point482.1ºC at 760 mmHg
Density1.193g/cm3
Flash Point171.8ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Koenimbine?

The CAS number of Koenimbine is 21087-98-9.

What are the molecular formula and molecular weight of Koenimbine?

Koenimbine has molecular formula C19H19NO2 and molecular weight 293.36 g/mol.

Is Koenimbine hazardous?

Koenimbine 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. "Koenimbine (CAS 21087-98-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1112163-5 (accessed 2026-10-26).

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