VITAMIN K-S(II)
Flammability | 1 | |
Toxicity | 1 | |
Body Contact | 1 | |
Reactivity | 1 | |
Chronic | 0 | |
SCALE: Min/Nil=0 Low=1 Moderate=2 High=3 Extreme=4 |
Vitamin K is essential for the formation of prothrombine (factor II) and other clotting
factors (factors VII, IX and X) in the liver. Vitamin K- S(II) has been used as an
antihaemorrhagic vitamin.
C14-H12-O4-S, "3-[1, 4-dihydro-3-methyl-1, 4-dioxo-2-naphthalenyl)thio]-propanoic acid",
"3-[1, 4-dihydro-3-methyl-1, 4-dioxo-2-naphthalenyl)thio]-propanoic acid", "3-(1, 4-
dihydro-3-methyl-1, 4-dioxo-2-naphthylthio)-propionic acid", "3-(1, 4-dihydro-3-methyl-1,
4-dioxo-2-naphthylthio)-propionic acid", "S-(2-methyl-1, 4-naphthoquinonyl)-3-beta-
mercaptopropionic acid", "S-(2-methyl-1, 4-naphthoquinonyl)-3-beta-mercaptopropionic acid"
None
Although ingestion is not thought to produce harmful effects, the material may still be damaging to the health of the individual following ingestion, especially where pre- existing organ (e.g. liver, kidney) damage is evident. Present definitions of harmful or toxic substances are generally based on doses producing mortality (death) rather than those producing morbidity (disease, ill-health). Gastrointestinal tract discomfort may produce nausea and vomiting. In an occupational setting however, ingestion of insignificant quantities is not thought to be cause for concern. Considered an unlikely route of entry in commercial/industrial environments.
Although the material is not thought to be an irritant, direct contact with the eye may produce transient discomfort characterized by tearing or conjunctival redness (as with windburn). The dust may produce eye discomfort causing smarting, pain and redness.
The material is not thought to produce adverse health effects or skin irritation following contact (as classified using animal models). Nevertheless, good hygiene practice requires that exposure be kept to a minimum and that suitable gloves be used in an occupational setting.
The material is not thought to produce adverse health effects or irritation of the respiratory tract (as classified using animal models). Nevertheless, good hygiene practice requires that exposure be kept to a minimum and that suitable control measures be used in an occupational setting. Not normally a hazard due to non-volatile nature of product. Persons with impaired respiratory function, airway diseases and conditions such as emphysema or chronic bronchitis, may incur further disability if excessive concentrations of particulate are inhaled.
Principal routes of exposure are usually by skin contact and inhalation of generated dust. Deficiency of Vitamin K produces hypothrombinaemia in which the clotting time of blood is prolonged and spontaneous haemorrhage may occur. Deficiency may result from poor intestinal absorption, from obstructive jaundice or severe liver disease or from the administration of coumarin or indanedione anticoagulants which interfere with Vitamin K metabolism.