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2D Structure
Also known as: 58-27-5, Vitamin k3, 2-methyl-1,4-naphthoquinone, 2-methylnaphthalene-1,4-dione, Menaphthone, Kayquinone
Molecular Formula
C11H8O2
Molecular Weight
172.18  g/mol
InChI Key
MJVAVZPDRWSRRC-UHFFFAOYSA-N
FDA UNII
723JX6CXY5

A synthetic naphthoquinone without the isoprenoid side chain and biological activity, but can be converted to active vitamin K2, menaquinone, after alkylation in vivo.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
2-methylnaphthalene-1,4-dione
2.1.2 InChI
InChI=1S/C11H8O2/c1-7-6-10(12)8-4-2-3-5-9(8)11(7)13/h2-6H,1H3
2.1.3 InChI Key
MJVAVZPDRWSRRC-UHFFFAOYSA-N
2.1.4 Canonical SMILES
CC1=CC(=O)C2=CC=CC=C2C1=O
2.2 Other Identifiers
2.2.1 UNII
723JX6CXY5
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 2-methyl-1,4-naphthalenedione

2. 2-methyl-1,4-naphthoquinone

3. 2-methylnaphthoquinone

4. Bisulfite, Menadione

5. Bisulfite, Menadione Sodium

6. Menadione Bisulfite

7. Menadione Sodium Bisulfite

8. Menadione Sodium Bisulfite, Trihydrate

9. Sodium Bisulfite, Menadione

10. Vicasol

11. Vikasol

12. Vitamin K 3

13. Vitamin K3

14. Vitamin K3 Sodium Bisulfite

2.3.2 Depositor-Supplied Synonyms

1. 58-27-5

2. Vitamin K3

3. 2-methyl-1,4-naphthoquinone

4. 2-methylnaphthalene-1,4-dione

5. Menaphthone

6. Kayquinone

7. 2-methylnaphthoquinone

8. 2-methyl-1,4-naphthalenedione

9. Thyloquinone

10. Kappaxin

11. Klottone

12. Panosine

13. Kayklot

14. Kolklot

15. Menaphthon

16. Aquakay

17. Menadion

18. Kanone

19. Kipca

20. Aquinone

21. Kaergona

22. Kativ-g

23. Mitenone

24. Prokayvit

25. Hemodal

26. Karcon

27. Kareon

28. Kaykot

29. Koaxin

30. Mitenon

31. Synkay

32. Vitamin K 3

33. K-thrombyl

34. K-vitan

35. Kipca-oil Soluble

36. Juva-k

37. Vitamin K2(0)

38. Vitamin K0

39. 2-methyl-1,4-naphthochinon

40. Menaquinone 0

41. Menaphtone

42. Usaf Ek-5185

43. 3-methyl-1,4-naphthoquinone

44. 1,4-naphthalenedione, 2-methyl-

45. Menaphthene

46. Kaynone

47. 2-methyl-1,4-naftochinon

48. Menadione (vitamin K3)

49. 2-methyl-1,4-dihydronaphthalene-1,4-dione

50. 1,4-naphthoquinone, 2-methyl-

51. Menaquinone O

52. Nsc 4170

53. Mfcd00001681

54. Methyl-1,4-naphthoquinone

55. Nsc4170

56. Nsc-4170

57. Mnq

58. Chembl590

59. 2-methyl-1,4-naphthalendione

60. Mls000069420

61. 723jx6cxy5

62. 1,4-dihydro-2-methylnaphthalene-1,4-dione

63. Menadionum

64. Memodol

65. 1,4-naphthalenedione, 2-methyl

66. Chebi:28869

67. Menadione (vitamin K3) 10 Microg/ml In Acetonitrile

68. Kappaxan (van)

69. Vk3

70. Cas-58-27-5

71. Menadione Semiquinone

72. Ncgc00016258-02

73. Smr000059102

74. Dsstox_cid_1715

75. Dsstox_rid_76289

76. Dsstox_gsid_21715

77. 2-methyl-1,4-naftochinon [czech]

78. Menadione (usp)

79. Kappaxin (tn)

80. Kipca, Oil Soluble

81. 2-methyl-1,4-naphthochinon [german]

82. Ccris 6672

83. Hsdb 3354

84. Menadione [usp:ban]

85. Sr-01000712386

86. Einecs 200-372-6

87. 2-methyl-1,4-naphthodione

88. Methyl-1,4-naphthalenedione

89. Unii-723jx6cxy5

90. Mendione

91. Ai3-14700

92. 2-methyl-1,4-naphthoquinone, 5

93. Menadione, 9

94. Menadione,(s)

95. Prestwick_313

96. Menadione, 98%

97. Menadione, Crystalline

98. Spectrum_001228

99. Specplus_000191

100. Menadione [mi]

101. Menadione [hsdb]

102. Menadione [inci]

103. Opera_id_1802

104. Prestwick0_000459

105. Prestwick1_000459

106. Prestwick2_000459

107. Prestwick3_000459

108. Spectrum2_001194

109. Spectrum4_000722

110. Spectrum5_001764

111. Menadione [vandf]

112. M0373

113. Menadione [mart.]

114. Ncimech_000105

115. Cid_4055

116. Menadione [usp-rs]

117. Menadione [who-dd]

118. 2-methyl-1,4-napthoquinone

119. Schembl25970

120. Bspbio_000538

121. Kbiogr_000984

122. Kbiogr_002527

123. Kbioss_001708

124. Kbioss_002535

125. 2-methyl-1,4 Naphthoquinone

126. 34524-96-4

127. Mls001148443

128. Bidd:er0556

129. Divk1c_000080

130. Divk1c_006287

131. Spectrum1502254

132. Spbio_001267

133. Spbio_002477

134. 3-methyl-1,4-naphthalenedione

135. Bpbio1_000592

136. Zinc1677

137. Menadione [orange Book]

138. Dtxsid4021715

139. Menadione [ep Monograph]

140. 2-methyl-[1,4]-naphthoquinone

141. Bdbm24778

142. Hms500d22

143. Kbio1_000080

144. Kbio1_001231

145. Kbio2_001708

146. Kbio2_002527

147. Kbio2_004276

148. Kbio2_005095

149. Kbio2_006844

150. Kbio2_007663

151. Kbio3_003005

152. Wln: L66 Bv Evj C1

153. Menadione [usp Monograph]

154. Cmap_000077

155. Ninds_000080

156. Bio1_000471

157. Bio1_000960

158. Bio1_001449

159. Hms1569k20

160. Hms1921p06

161. Hms2092f12

162. Hms2096k20

163. Hms2232a09

164. Hms2234j16

165. Hms3371m08

166. Hms3373a12

167. Hms3655p03

168. Hms3869n03

169. Pharmakon1600-01502254

170. Amy31055

171. Bcp25699

172. Hy-b0332

173. Str01143

174. Tox21_110334

175. Tox21_301367

176. Bbl027351

177. Ccg-35354

178. Menadione (k3), Analytical Standard

179. Nsc758200

180. S1949

181. Stl377874

182. Akos004910447

183. Akos025244105

184. Tox21_110334_1

185. Db00170

186. Fs-2556

187. Nsc-758200

188. Sb17255

189. Idi1_000080

190. Qtl1_000056

191. Ncgc00016258-01

192. Ncgc00016258-03

193. Ncgc00016258-04

194. Ncgc00016258-06

195. Ncgc00016258-07

196. Ncgc00016258-08

197. Ncgc00094978-01

198. Ncgc00094978-02

199. Ncgc00255225-01

200. Ac-34841

201. Nci60_003945

202. Smr000653532

203. Sy018303

204. Sbi-0051776.p002

205. Menadione, Meets Usp Testing Specifications

206. Ft-0612893

207. Ft-0675843

208. Sw219798-1

209. C05377

210. D02335

211. Phytomenadione Impurity A [ep Impurity]

212. 001m681

213. A831816

214. Q192471

215. 1,4-naphthalenedione, 2-methyl-, Radical Ion(1-)

216. Q-201350

217. Sr-01000712386-2

218. Sr-01000712386-5

219. Sr-01000712386-6

220. Vitamin K3; 2-methyl-1,4-naphthalenedione

221. Brd-k78126613-001-16-0

222. Vitamin K3; 2-methyl-1,4-naphthoquinone; Menaphthone

223. Vitamin K3: 1,4-dihydro-1,4-dioxo-2-methylnaphthalene

224. Menadione, European Pharmacopoeia (ep) Reference Standard

225. 03aae1e9-b215-45af-976c-91e61894a467

226. Menadione, United States Pharmacopeia (usp) Reference Standard

227. Menadione, Pharmaceutical Secondary Standard; Certified Reference Material

2.4 Create Date
2005-03-25
3 Chemical and Physical Properties
Molecular Weight 172.18 g/mol
Molecular Formula C11H8O2
XLogP32.2
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass172.052429494 g/mol
Monoisotopic Mass172.052429494 g/mol
Topological Polar Surface Area34.1 Ų
Heavy Atom Count13
Formal Charge0
Complexity289
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Therapeutic Uses

The synthetic water soluble forms of vitamin K (menadione, menadiol) have long since been considered inferior to vitamin K1 (phytonadione) in the treatment of drug-induced hypoprothrombinemia.

Hardman, J.G., L.E. Limbird, P.B., A.G. Gilman. Goodman and Gilman's The Pharmacological Basis of Therapeutics. 10th ed. New York, NY: McGraw-Hill, 2001., p. 1783


Menadione (vitamin K3) a redox cycling quinone, is a clinically important chemotherapeutic agent. ...

PMID:11726226 Laux I, Nel A; Clin Immunol 101 (3): 335-44 (2001)


Menadione, or vitamin K3 (VK3), a potent oxidative stress inducer, has been recently used as an effective and remarkably safe cytotoxic drug for treatment of several human tumors. ...

PMID:10497012 Caricchio R et al; Clinical Immunology 93 (1): 65-74 (1999)


4.2 Drug Warning

... Probably should not be given to newborn infants or women during last few wk of pregnancy.

American Medical Association, Council on Drugs. AMA Drug Evaluations Annual 1994. Chicago, IL: American Medical Association, 1994., p. 795


Menadione is ineffective for the treatment of warfarin and superwarfarin toxicity. It elicits a poor response and should not be used.

Ellenhorn, M.J., S. Schonwald, G. Ordog, J. Wasserberger. Ellenhorn's Medical Toxicology: Diagnosis and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams and Wilkins, 1997., p. 459


Vitamin K /SRP: phytonadione preferred/ must be administered with great care to patients to whom anticoagulants have been given to combat intravascular clotting. ... The vitamin must be "titrated" against the anticoagulant, lest the patient be re-exposed to the same threat of clotting that led to anticoagulants therapy in the first place. No such problem exists in treating persons poisoned accidentally or suicidally by anticoagulant rodenticides. There is no evidence that vitamin K produces in normal persons any excessive tendency of the blood to clot. /vitamin K/

Hayes, W.J., Jr., E.R. Laws Jr., (eds.). Handbook of Pesticide Toxicology Volume 1. General Principles. New York, NY: Academic Press, Inc., 1991., p. 398


Menadione...can induce hemolysis in individuals who are genetically deficient in glucose-6-phosphate dehydrogenase.

Gilman, A.G., T.W. Rall, A.S. Nies and P. Taylor (eds.). Goodman and Gilman's The Pharmacological Basis of Therapeutics. 8th ed. New York, NY. Pergamon Press, 1990., p. 1564


For more Drug Warnings (Complete) data for MENADIONE (6 total), please visit the HSDB record page.


4.3 Minimum/Potential Fatal Human Dose

3. 3= Moderately toxic: probable oral lethal dose (human) 0.5-5 g/kg, between 1 oz & 1 pint (or 1 lb) for 70 kg person (150 lb).

Gosselin, R.E., R.P. Smith, H.C. Hodge. Clinical Toxicology of Commercial Products. 5th ed. Baltimore: Williams and Wilkins, 1984., p. II-403


4.4 Drug Indication

The primary known function of vitamin K is to assist in the normal clotting of blood, but it may also play a role in normal bone calcification.


5 Pharmacology and Biochemistry
5.1 Pharmacology

Menadione (Vitamin K3) is a fat-soluble vitamin precursor that is converted into menaquinone in the liver. Vitamin K1 and K2 are the naturally occurring types of vitamin K. The former, which is also known as phylloquinone, is synthesized by plants and can be found in such foods as spinach, broccoli, lettuce, and soybeans. The latter, sometimes alternatively referred to as menaquinone, is primarily produced by bacteria in the anterior part of the gut and the intestines. Vitamin K3, on the other hand, is one of the many manmade versions of vitamin K. Also called menadione, this yellowish, synthetic crystalline substance is converted into the active form of the K2 vitamin inside of the animal body. While a vitamin K deficiency can be dangerous, especially to infants that may easily suffer from extensive hemorrhaging, an overdose can be as equally detrimental. Newborns that are administered too great a dosage of vitamin K3 can suffer from kernicterus, a form of severe brain damage that may produce decreased movement, loss of appetite, seizures, deafness, mental retardation, and even death. This condition is associated with an abnormally high concentration of bilirubin, a bile pigment, in the tissues of the brain, which can be caused by the presence of K3. For this reason, K3 is less often utilized medically than it was in former times.


5.2 MeSH Pharmacological Classification

Vitamins

Organic substances that are required in small amounts for maintenance and growth, but which cannot be manufactured by the human body. (See all compounds classified as Vitamins.)


Antifibrinolytic Agents

Agents that prevent fibrinolysis or lysis of a blood clot or thrombus. Several endogenous antiplasmins are known. The drugs are used to control massive hemorrhage and in other coagulation disorders. (See all compounds classified as Antifibrinolytic Agents.)


5.3 ATC Code

B - Blood and blood forming organs

B02 - Antihemorrhagics

B02B - Vitamin k and other hemostatics

B02BA - Vitamin k

B02BA02 - Menadione


5.4 Absorption, Distribution and Excretion

Absorption

Variable and ranges from 10% to 80%


Menadione and its water soluble derivatives ... are absorbed even in the absence of bile ... /and/ enter the bloodstream directly.

Gilman, A.G., T.W. Rall, A.S. Nies and P. Taylor (eds.). Goodman and Gilman's The Pharmacological Basis of Therapeutics. 8th ed. New York, NY. Pergamon Press, 1990., p. 1565


Eighteen hr after intracardiac admin of (3)H-menadione ... to rats fed diet deficient in vit k, 78% of (3)H had been excreted in urine, 3% in feces, and 29% remained in animals. Biliary excretion ... observed in dogs, & 5-10% of (14)c had been excreted by this route 12 hr after oral dose of (14)C-menadione.

The Chemical Society. Foreign Compound Metabolism in Mammals. Volume 1: A Review of the Literature Published Between 1960 and 1969. London: The Chemical Society, 1970., p. 43


Vit k accum in liver, spleen, and lungs. /however/ significant amounts are not stored in body for long periods.

American Medical Association, Council on Drugs. AMA Drug Evaluations Annual 1994. Chicago, IL: American Medical Association, 1994., p. 783


VET: ... Menadione or vit k3 absorbed is converted to k2 for utilization, otherwise it is rapidly eliminated via urine.

Rossoff, I.S. Handbook of Veterinary Drugs. New York: Springer Publishing Company, 1974., p. 659


The pharmacokinetics of menadione (vitamin K3)... were studied in rabbits after iv injection of 75 mg menadiol sodium diphosphate (Synkayvite). ... Plasma clearance was 0.822 L/min. Systemic clearance in RBCs was 0.407 L/min. Apparent volume of distribution was 30.833 L in plasma and 20.488 L in RBCs. Area under the concn-time curve was 32.453 ug min/ml for plasma and 67.219 ug min/ml for RBCs. /Menadiol sodium diphosphate/

PMID:8866040 Hu OY et al; Biopharm. Drug Dispos. 17: 493-499 (1996)


5.5 Metabolism/Metabolites

Hepatic


Distribution studies with menadione tritiated in 6,7-position, ((3)H(6,7))-2-methyl-1,4-naphthaquinone, in rats showed that lipophilic metabolite of menadione, menaquinone-4, 2-methyl-3-geranylgeranyl-1,4-naphthaquinone was present in all tissues examined.

The Chemical Society. Foreign Compound Metabolism in Mammals. Volume 1: A Review of the Literature Published Between 1960 and 1969. London: The Chemical Society, 1970., p. 231


2-methyl-1,4-naphthoquinone yields in rat vit k2(20); yields vit k2(45), and vit k2(50) probably in man. /from table/

Goodwin, B.L. Handbook of Intermediary Metabolism of Aromatic Compounds. New York: Wiley, 1976., p. M-33


...Xenobiotics that are reduced by carbonyl reductases include... menadione... .

Klaassen, C.D. (ed). Casarett and Doull's Toxicology. The Basic Science of Poisons. 6th ed. New York, NY: McGraw-Hill, 2001., p. 145


Menadione is excreted in part as glucuronide and competes with bilirubin for detoxification mechanism of limited capacity in newborn.

Goodman, L.S., and A. Gilman. (eds.) The Pharmacological Basis of Therapeutics. 5th ed. New York: Macmillan Publishing Co., Inc., 1975., p. 1594


For more Metabolism/Metabolites (Complete) data for MENADIONE (6 total), please visit the HSDB record page.


5.6 Biological Half-Life

The pharmacokinetics of menadione (vitamin K3)... were studied in rabbits after iv injection of 75 mg menadiol sodium diphosphate (Synkayvite). Mean elimination half-life of menadione was 27.17 min in plasma and 35.22 min in red blood cells... . /Menadiol sodium diphosphate/

PMID:8866040 Hu OY et al; Biopharm. Drug Dispos. 17: 493-499 (1996)


5.7 Mechanism of Action

Menadione (vitamin K3) is involved as a cofactor in the posttranslational gamma-carboxylation of glutamic acid residues of certain proteins in the body. These proteins include the vitamin K-dependent coagulation factors II (prothrombin), VII (proconvertin), IX (Christmas factor), X (Stuart factor), protein C, protein S, protein Zv and a growth-arrest-specific factor (Gas6). In contrast to the other vitamin K-dependent proteins in the blood coagulation cascade, protein C and protein S serve anticoagulant roles. The two vitamin K-dependent proteins found in bone are osteocalcin, also known as bone G1a (gamma-carboxyglutamate) protein or BGP, and the matrix G1a protein or MGP. Gamma-carboxylation is catalyzed by the vitamin K-dependent gamma-carboxylases. The reduced form of vitamin K, vitamin K hydroquinone, is the actual cofactor for the gamma-carboxylases. Proteins containing gamma-carboxyglutamate are called G1a proteins.


The vitamin K-dependent blood clotting factors, in the absence of vitamin K (or in the presence of the coumarin type of anticoagulant), are biologically inactive precursor proteins in the liver. Vitamin K functions as an essential cofactor for a microsomal enzyme system that activates these precursors by the conversion of multiple residues of glutamic acid near the amino terminus of each precursor to gamma-carboxyglutamyl residues in the completed protein. The formation of this new amino acid, gamma-carboxyglutamic acid, allows the protein to bind Ca+2 and in turn to be bound to a phospholipid surface, both of which are necessary in the cascade of events that lead to clot formation. /Vitamin K/

Hardman, J.G., L.E. Limbird, P.B., A.G. Gilman. Goodman and Gilman's The Pharmacological Basis of Therapeutics. 10th ed. New York, NY: McGraw-Hill, 2001., p. 1783


Vitamin k is necessary for formation of prothrombinogen and other blood clotting factors in liver. During clotting, circulating prothrombin is required for production of thrombin; in turn, thrombin converts fibrinogen to fibrin, network of which constitutes clot. /vitamin k/

Osol, A. and J.E. Hoover, et al. (eds.). Remington's Pharmaceutical Sciences. 15th ed. Easton, Pennsylvania: Mack Publishing Co., 1975., p. 943


The active form of vitamin K appears to be the reduced vitamin K hydroquinone, which, in the presence of oxygen, carbon dioxide, and the microsomal carboxylase enzyme, is converted to its 2,3-epoxide at the same time gamma-carboxylation takes place. The hydroquinone form of vitamin K is regenerated from the 2,3-epoxide by a coumarin sensitive epoxide reductase ... . /Vitamin K/

Hardman, J.G., L.E. Limbird, P.B., A.G. Gilman. Goodman and Gilman's The Pharmacological Basis of Therapeutics. 10th ed. New York, NY: McGraw-Hill, 2001., p. 1784


Menadione is a potent inhibitor of aldehyde oxidase (Ki ~0.1 uM) and can be used together with allopurinol to discriminate between aldehyde oxidase- and xanthine oxidase-catalyzed reactions.

Klaassen, C.D. (ed). Casarett and Doull's Toxicology. The Basic Science of Poisons. 6th ed. New York, NY: McGraw-Hill, 2001., p. 160


For more Mechanism of Action (Complete) data for MENADIONE (6 total), please visit the HSDB record page.