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Vitamins and nutraceutical actives

Menaquinone 9

Also known as Menaquinone-9, 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-nonaenyl]naphthalene-1,4-dione, 1,4-Naphthalenedione, 2-methyl-3-(3,7,11,15,19,23,27,31,35-nonamethyl-2,6,10,14,18,22,26,30,34-hexatriacontanonaenyl)-, (all-E)-

CAS 523-39-7Formula C56H80O2Molar mass 785.25 g/mol
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Menaquinone 9 chemical structure, C56H80O2, CAS 523-39-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
523-39-7
Formula
C56H80O2
Molar mass
785.25 g/mol
HS code
293629
Category
Vitamins and nutraceutical actives

What is Menaquinone 9?

Plain description, key identifiers and synonyms

Menaquinone-9 is a menaquinone whose side-chain contains 9 isoprene units in an all-trans-configuration. It has a role as an Escherichia coli metabolite.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
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-nonaenyl]naphthalene-1,4-dione
CAS number
523-39-7
Molecular formula
C56H80O2
UNII
Z3YR8XD3W8
InChIKey
WCRXHNIUHQUASO-UVZVDVBNSA-N
InChI
InChI=1S/C56H80O2/c1-42(2)22-14-23-43(3)24-15-25-44(4)26-16-27-45(5)28-17-29-46(6)30-18-31-47(7)32-19-33-48(8)34-20-35-49(9)36-21-37-50(10)40-41-52-51(11)55(57)53-38-12-13-39-54(53)56(52)58/h12-13,22,24,26,28,30,32,34,36,38-40H,14-21,23,25,27,29,31,33,35,37,41H2,1-11H3/b43-24+,44-26+,45-28+,46-30+,47-32+,48-34+,49-36+,50-40+
SMILES
CC1=C(C(=O)C2=CC=CC=C2C1=O)C/C=C(\C)/CC/C=C(\C)/CC/C=C(\C)/CC/C=C(\C)/CC/C=C(\C)/CC/C=C(\C)/CC/C=C(\C)/CC/C=C(\C)/CCC=C(C)C

Synonyms

  • Menaquinone-9
  • 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-nonaenyl]naphthalene-1,4-dione
  • 1,4-Naphthalenedione, 2-methyl-3-(3,7,11,15,19,23,27,31,35-nonamethyl-2,6,10,14,18,22,26,30,34-hexatriacontanonaenyl)-, (all-E)-
  • 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-nonaenyl)naphthalene-1,4-dione
  • 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
  • Menaquinone MK 9
  • 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
  • Vitamin K2 (MK-9)
  • Vitamin k2-9
  • menaquinone with nine isoprene units
  • 1,4-Naphthalenedione, 2-methyl-3-((2E,6E,10E,14E,18E,22E,26E,30E)-3,7,11,15,19,23,27,31,35-nonamethyl-2,6,10,14,18,22,26,30,34-hexatriacontanonaen-1-yl)-
  • 2-Methyl-3-[(2E,6E,10E,14E,18E,22E,26E,30E)-3,7,11,15,19,23,27,31,35-nonamethyl-2,6,10,14,18,22,26,30,34-hexatriacontanonaen-1-yl]-1 ,4-naphthalenedione

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
785.25 g/molcalc.
Exact mass
784.6158 Dacalc.
LogP (octanol/water)
17.55calc.
Topological polar surface area
34.14 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
26calc.
Heavy atoms
58calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Fails (2 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1C=CC(=O)c2ccccc21

O=C1C=CC(=O)c2ccccc21

2 rings, 12 atoms, the 1,4-Naphthoquinone ring system.

875 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Menaquinone 9 suppliers

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All 3 suppliers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

3 suppliers in 2 countries

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Menaquinone 9 price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Roles

  • Escherichia coli metabolite
  • bacterial metabolite
  • metabolite
  • prokaryotic metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Menaquinone 9 is traded under.

HS 2936.29Indicative HS code

Vitamins and their derivatives, unmixed, other vitamins and their derivatives

World exports in 2024
$2.21B
+8.7% vs 2023, imports $1.85B
2019 to 2024
Top exporters
  1. China25.3%
  2. United States14.5%
  3. Australia13.8%
Top importers
  1. United States16.4%
  2. Netherlands9.4%
  3. Spain5.6%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Menaquinone 9 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Menaquinone 9, based on the data on this page

What is Menaquinone 9?

Menaquinone-9 is a menaquinone whose side-chain contains 9 isoprene units in an all-trans-configuration. It has a role as an Escherichia coli metabolite.

What is the CAS number of Menaquinone 9?

The CAS registry number of Menaquinone 9 is 523-39-7.

What is the molecular formula and weight of Menaquinone 9?

The molecular formula of Menaquinone 9 is C56H80O2 and its molar mass is 785.25 g/mol.

What is Menaquinone 9 used for?

Known uses and roles of Menaquinone 9 include vitamins and supplements in pharmaceuticals, vitamins, minerals and nutrients in food and beverage, feed vitamins in animal feed and nutrition, escherichia coli metabolite, bacterial metabolite and 2 more.

Is Menaquinone 9 hazardous?

No GHS hazard classification for Menaquinone 9 is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Menaquinone 9?

Menaquinone 9 is usually classified under HS code 293629 (Vitamins and their derivatives, unmixed, other vitamins and their derivatives). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Menaquinone 9?

CompoundList lists 3 suppliers of Menaquinone 9 in China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Menaquinone 9?

Suppliers quote Menaquinone 9 on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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