胆酸(英语:Cholic acid,也被称为3α,7α,12α-三羟基-5β-胆烷-24-羧酸,3α,7α,12α-trihydroxy-5β-cholan-24-oic acid)是胆汁酸的主要成分[1],不溶于水,可溶于乙醇和乙酸,固态为白色晶体,其盐类被称为胆酸盐(英语:cholates)。
Cholic acid | |
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IUPAC名 (R)-4-((3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-Trihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic acid | |
系统名 (4R)-4-[(1S,2S,5R,7S,9R,10R,11S,14R,15R,16S)-5,9,16-trihydroxy-2,15-dimethyltetracyclo[8.7.0.02,7.011,15]heptadecan-14-yl]pentanoic acid (4R)-4-[(1S,2S,5R,7S,9R,10R,11S,14R,15R,16S)-2,15-二甲基-5,9,16-三羟基四环[8.7.0.02,7.011,15]十七烷-14-基]戊酸 | |
别名 | 3α,7α,12α-三羟基-5β-胆烷-24-羧酸 |
识别 | |
CAS号 | 81-25-4 |
PubChem | 221493 |
ChemSpider | 192176 |
SMILES |
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InChI |
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InChIKey | BHQCQFFYRZLCQQ-OELDTZBJBZ |
ChEBI | 16359 |
DrugBank | DB02659 |
KEGG | D10699 |
IUPHAR配体 | 609 |
性质 | |
化学式 | C24H40O5 |
摩尔质量 | 408.57 g·mol−1 |
熔点 | 200-201 °C(473-474 K) |
磁化率 | -282.3·10−6 cm3/mol |
药理学 | |
ATC代码 | A05AA03(A05) |
药品许可证 | |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
胆酸和鹅去氧胆酸是胆汁酸的两大主要成分,由肝脏代谢胆固醇生成,这两种主要胆汁酸在人体内的浓度大致相等[2]。胆酸的衍生物主要由胆酸-辅酶A(cholyl-CoA)生成,其中CoA可以与甘氨酸或牛磺酸交换,生成甘氨胆酸或牛磺胆酸[3]。
参考文献
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