维生素k
维生素k(Vitamin K)
CAS: 12001-79-5
化学式: C31H46O2
| 中文名 | 维生素k |
| 英文名 | Vitamin K |
| 别名 | 维生素k 甲萘氢醌 维他命 K 食品级维生素K |
| 英文别名 | C01628 Kanavit Vitamin K VITAMIN K Synkavite Mephyton Konakion Synkavite vitamine K Aqua-mephyton VITAMIN K1 USP23 Vitamin K substances 2-methyl-3-(3,7,11,15-tetramethylhexadec-2-en-1-yl)naphthalene-1,4-dione 2-methyl-3-[(E)-3,7,11,15-tetramethylhexadec-2-enyl]naphthalene-1,4-dione 2-methyl-3-[(2E)-3,7,11,15-tetramethylhexadec-2-en-1-yl]naphthalene-1,4-dione |
| CAS | 12001-79-5 |
| EINECS | 234-408-7 |
| 化学式 | C31H46O2 |
| 分子量 | 450.7 |
| InChI | InChI=1/C31H46O2/c1-22(2)12-9-13-23(3)14-10-15-24(4)16-11-17-25(5)20-21-27-26(6)30(32)28-18-7-8-19-29(28)31(27)33/h7-8,18-20,22-24H,9-17,21H2,1-6H3/b25-20+ |
| 密度 | 0.984g/mLat 25°C(lit.) |
| 熔点 | −20°C(lit.) |
| 沸点 | 546.4°C at 760 mmHg |
| 闪点 | >230°F |
| 蒸汽压 | 5.37E-12mmHg at 25°C |
| 折射率 | n20/D 1.527(lit.) |
| 存储条件 | 2-8°C |
| 外观 | 粘性液体 |
| 物化性质 | 。白色或微黄色结晶性粉末。无臭或微带有乙酸臭味。熔点112-114℃。不溶于水。微溶于冰乙醇。易溶于沸乙醇。 |
| 体外研究 | Phylloquinone (vitamin K1) and Menaquinones (vitamin K2) are the two naturally occurring forms of vitamin K. Phylloquionone is the major dietary source of vitamin K and is found at highest concentrations in green leafy vegetables. Vitamin K2 (menaquinone) is found in small amounts in chicken, butter, egg yolks, cheese and fermented soyabeans. Vitamin K1 and vitamin K2 are required for the γ-glutamyl carboxylation of all vitamin K-dependent proteins. Vitamin K has important actions in the nervous system. Vitamin K contributes to the biological activation of proteins Gas6 and protein S, ligands for the receptor tyrosine kinases of the TAM family (Tyro3, Axl, and Mer). In brain, vitamin K also participates in the synthesis of sphingolipids, an important class of lipids present in high concentrations in brain cell membranes. |
| 体内研究 | Vitamin K is well-known for its function in blood coagulation. Several human studies report the beneficial role of vitamin K supplementation in improving insulin sensitivity and glucose tolerance, preventing insulin resistance, and reducing the risk of type 2 diabetes. The adequate intake for vitamin K has been proposed to be 90 µg/day for women and 120 µg/day for men. Vitamin K deficiency results in an increase in undercarboxylated osteocalcin, a protein with low biological activity. Several studies have demonstrated that low dietary vitamin K intake is associated with low bone mineral density or increased fractures. Additionally, vitamin K supplementation has been shown to reduce undercarboxylated osteocalcin and improve the bone turnover profile. |
| WGK Germany | 2 |
| RTECS | QJ5800000 |
| FLUKA BRAND F CODES | 1-8-10 |
| 上游原料 | 维生素K3 |
供应商列表
维生素k的上游原料
您刚刚浏览过
你知道吗？
微信搜索化工百科或扫描下方二维码，添加化工百科小程序，随时随地查信息！