C11H8O2
172.18 g/mol
Pharmaceutical IntermediateWarning
Menadione
CAS58-27-5EC200-372-6
Category
Pharmaceutical Intermediate
Compound Class
Aromatic
Primary Use
Pharmaceutical Intermediate
Menadione is a synthetic naphthoquinone derivative with the physiologic properties of vitamin K. It is primarily used as an intermediate in the industrial synthesis of phylloquinone (vitamin K1).
Intermediate in phylloquinone productionVeterinary antidote to bishydroxycoumarin poisoning (including sweet clover poisoning)
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Uridine
CAS58-96-8
pharmaceutical intermediate
ReferenceSame Category
Quinolin-6-ol
CAS580-16-5
pharmaceutical intermediate
ReferenceSame Category
4-Oxocyclohexaneacetic acid ethyl ester
CAS58012-34-3
pharmaceutical intermediate
ReferenceSame Category
Methyl 2,4-dihydroxy-6-pentylbenzoate
CAS58016-28-7
pharmaceutical intermediate
Referencestereoisomer of
Menadione-d8
CAS478171-80-1
research compound
Referencestereoisomer of
2-(Methyl-D3)-1,4-naphthoquinone
CAS5172-16-7
research compound
Referencesame scaffold
2-chloro-1,4-naphthoquinone
CAS1010-60-2
pharmaceutical intermediate
Referencesame scaffold
1,4-naphthoquinone-d6
CAS26473-08-5
research compound
Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Menadione (CAS 58-27-5) is 2914.69.
HS code (international, 6-digit)
2914.69
EU CN code (8-digit)
2914 69 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
2-methylnaphthalene-1,4-dione
InChIKey
MJVAVZPDRWSRRC-UHFFFAOYSA-N
SMILES
CC1=CC(=O)C2=CC=CC=C2C1=O
Synonyms (91)
- MNQ
- Menadione (USP)
- Menadione, European Pharmacopoeia (EP)
- Menadione, United States Pharmacopeia (USP)
- Menadione, meets USP testing specifications
- Phytomenadione Imp. A (EP); Menadione; 2-methylnaphthalene-1,4-dione; Phytomenadione Impurity A
- 1,4-Naphthoquinone, 2-methyl-
- 2-Methyl-1,4-naftochinon
- 2-Methyl-1,4-naphthalendione
- 2-Methyl-1,4-naphthalenedione
- 2-Methyl-1,4-naphthochinon
- 2-Methyl-1,4-naphthodione
- 2-Methyl-1,4-naphthoquinone
- 2-Methylnaphthoquinone
- 2-methyl-1,4-napthoquinone
- 2-methylnaphthalene-1,4-dione
- 3-Methyl-1,4-naphthoquinone
- 3-methyl-1,4-naphthalenedione
- Aquakay
- Aquinone
- Bisulfite, Menadione
- Bisulfite, Menadione Sodium
- Hemodal
- Juva-K
- K-Thrombyl
- K-Vitan
- Kaergona
- Kanone
- Kappaxan
- Kappaxan (VAN)
- Kappaxin
- Kappaxin (TN)
- Karcon
- Kareon
- Kativ-G
- Kayklot
- Kaykot
- Kaynone
- Kayquinone
- Kipca
- Klottone
- Koaxin
- Kolklot
- MENADIONE [MART.]
- Memodol
- Menadion
- Menadione (K3)
- Menadione (Standard)
- Menadione (Vitamin K3)
- Menadione 1528
- Menadione CRS
- Menadione Phenolic
- Menadione semiquinone
- Menadione, 9
- Menadione, crystalline
- Menadionum
- Menaphthene
- Menaphthon
- Menaphthone
- Menaphtone
- Menaquinone 0
- Menaquinone O
- Mendione
- Methyl-1,4-naphthalenedione
- Methyl-1,4-naphthoquinone
- Mitenon
- Mitenone
- PHYTOMENADIONE IMPURITY A
- Panosine
- Prokayvit
- Sodium Bisulfite, Menadione
- Synkay
- Thyloquinone
- Usaf ek-5185
- Vitamin K0
- Vitamin K2(0)
- Vitamin K3
- enadione (1.05793)
- menadione
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