| | Identification | Back Directory |  | [Name] 
 1,2,3,4-tetrahydro-2-methyl-1,4-dioxonaphthalene-2-sulphonic acid, compound with nicotin-3-amide (1:1)
 |  | [CAS] 
 73581-79-0
 |  | [Synonyms] 
 K3-MNB
 Menadione Nicotinamide bisulfite
 Menadione nicotinamide bisulfite (MNB)
 methyl 1,4-dioxo-2,3-dihydronaphthalene-2-sulfonate,pyridine-3-carboxamide
 2-Methyl-1,4-dioxo-1,2,3,4-tetrahydronaphthalene-2-sulfonic acid·3-pyridinecarboxamide
 2-Naphthalene sulfonic acid,1,2,3,4-tetrahydro-2-methyl-1,4-dioxo-,compd with 3-pyridinecarboxamide
 2-Naphthalene sulfonic acid, 1,2,3,4-tetrahydro-2-methyl-1,4-dioxo-, compd with 3-pyridinecarboxamide
 1,2,3,4-tetrahydro-2-methyl-1,4-dioxonaphthalene-2-sulphonic acid, compound with nicotin-3-amide (1:1)
 2-Naphthalenesulfonic acid, 1,2,3,4-tetrahydro-2-methyl-1,4-dioxo-, compd. with 3-pyridinecarboxamide (1:1)
 1,2,3,4-tetrahydro-2-methyl-1,4-dioxonaphthalene-2-sulphonic acid, compound with nicotin-3-amide (1:1) USP/EP/BP
 TIANFU-CHEM CAS:73581-79-0 	1,2,3,4-tetrahydro-2-methyl-1,4-dioxonaphthalene-2-sulphonic acid, compound with nicotin-3-amide (1:1)
 |  | [EINECS(EC#)] 
 277-543-7
 |  | [Molecular Formula] 
 C11H10O5S.C6H6N2O
 |  | [MOL File] 
 73581-79-0.mol
 |  | [Molecular Weight] 
 376.38
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 Menadione Nicotinamide Bisulfite is also known as Vitamin K3 and is one of 3 synthetic types of Vitamin K along with K4 and K5. Menadione nicotinamide bisulfite is also used as a nutritional supplement for both the prevention of vitamin K deficiency and as a source of supplemental niacin in poultry and swine. Federal regulation 21 CFR 573.625 states that this substance can be added to chicken and turkey feeds at a level not to exceed 2 g per ton of complete feed, and to growing and finishing swine feeds at a level not to exceed 10 g per ton of complete feed.
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