Menlaquinone 9

维生素K2(45)

Also known as: Menaquinone 9, Vitamin K2(45), Menaquinone MK 9, Vitamin MK 9, MK 9, all-trans-Vitamin K2(45), all-trans-Menachinon-9, 2-methyl-3-nonaisoprenyl-1,4-naphthoquinone, 2-methyl-3-[(2E,6E,10E,14E,18E,22E,26E,30E)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,6,10,14,18,22,26,30,34-nonaen-1-yl]naphthalene-1,4-dione

Menlaquinone 9 (CAS 523-39-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C55H78O2 and a molecular weight of 771.207 g/mol. It is also known as Menaquinone 9, Vitamin K2(45) and Menaquinone MK 9. Key properties include a melting point of 60-61ºC, a boiling point of 799.0±60.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 278.0±29.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
523-39-7
Jingsj CID
J-1519515-7
Molecular Formula
C55H78O2
Chinese Name
维生素K2(45)
Molecular Weight
771.207 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point60-61ºC
Boiling Point799.0±60.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point278.0±29.9 °C

Frequently Asked Questions

What is the CAS number of Menlaquinone 9?

The CAS number of Menlaquinone 9 is 523-39-7.

What are the molecular formula and molecular weight of Menlaquinone 9?

Menlaquinone 9 has molecular formula C55H78O2 and molecular weight 771.207 g/mol.

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

Last updated:

How to cite: Jingsj. "Menlaquinone 9 (CAS 523-39-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519515-7 (accessed 2026-10-24).

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