menadione

CAS No. 58-27-5

Formula: C11H8O2
Basic Info

Menadione is a organic compound with the formula C6H4(CO)2C2H(CH3). It is an analog of 1,4-naphthoquinone with a methyl group in the 2-position. It is occasionally used as a nutritional supplement because of its vitamin K activity.

Formula
C11H8O2
Molecular Weight
172.18
Exact Mass
172.052
LogP
2.0119
PSA
34.14
Synonyms

Kaykot

Synkay

Kipca

1,4-Naphthalenedione, 2-methyl-

Menadione

2-methyl-1,4-naphthodione

VK3

Koaxin

Karcon

2-methyl-naphthoquinone

Kareon

2-methyl-1,4-naphthalenedione

Kanone

Juva-K

Aquakay

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Properties
Appearance & Physical State
Bright yellow crystals
Density
1.225 g/cm3
Boiling Point
304.5ºC at 760 mmHg
Melting Point
105-108ºC
Flash Point
113.8ºC
Water Solubility
INSOLUBLE
Stability
Stable. May be light sensitive. Incompatible with strong oxidizing agents.
Storage Condition
Store at RT.
Safety Info
RTECS
QL9100000
Safety Statements
S24-S26-S37/39
WGK Germany
3
Risk Statements
R22; R36/37/38; R43
HS Code
2914700090
Caution Statement
P261; P305 + P351 + P338
Hazard Codes
Hazard Declaration
Caution Statement
Spectrum
NMR Spectrum 1H NMR : 90 MHz in CDCl3
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IR Spectrum IR : nujol mull
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Mass Spectrum Mass spectrum (electron ionization)
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Analysis Methods
Lee's RI, non-polar column, temperature ramp
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Column Shape
Capillary
Active Phase(℃)
SE-52
Retention index
259.23
Temperature Control
Method
temperature ramp
Comments
12. m/0.3 mm/0.34 μm, He, 2. K/min; T<sub>start</sub>: 50. C; T<sub>end</sub>: 250. C
Reference
Lee, M.L.Vassilaros, D.L.White, C.M.Novotny, M.Retention Indices for Programmed-Temperature Capillary-Column Gas Chromatography of Polycyclic Aromatic HydrocarbonsAnal. Chem.1979, 51, 6, 768-773.

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