计算溶液所需的质量、体积或浓度。
| 活性类型 | 活性值-log(M) | 作用机制 | 期刊 | 参考文献(PubMed IDs) |
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Moligand™ 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
-80℃储存。特低温运输 。请查阅批次 COA 获取详细规格。
SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。
在色谱分析、有机合成和交叉偶联反应领域已被 16 篇同行评审文献引用。
(-)-炔诺孕酮
Information
Levonorgestrel (D-Norgestrel) is a female hormone that prevents ovulation.
In vitro
Levonorgestrel suppresses the stimulation of progesterone secretion induced by oLH, dibutyryl-cAMP and Pregnenolone in rats luteal cells. Levonorgestrel also inhibits constrictions evoked by either a high potassium (K(+)) solution or phorbol myristate acetate (PMA) in the absence and presence of extracellular calcium (Ca(2+)). Levonorgestrel depresses contractions evoked by Ca(2+) and reduces (45)Ca(2+) influx in depolarized veins. Levonorgestrel increases levels of cyclic AMP and inhibits PMA-induced activation of protein kinase C in veins. Levonorgestrel causes endothelium-independent relaxations of jugular veins via inhibition of Ca(2+) entry and of protein kinase Cactivation. Levonorgestrel inhibition of both estrogen-induced pituitary weight increment and hyperprolactinemia is reduced by mifepristone, whereas Flutamide is unable to block Levonorgestrel effects
In vivo
Levonorgestrel down-regulates the mRNA expression of follicle-stimulating hormone receptor (FSHR), luteinizing hormone receptor (LHR), estrogen receptor (ER) β and progesterone receptor (PR) in the ovary, and ERα and PR in the uterus of Mongolian gerbils. Levonorgestrel causes a significant upregulation of the mRNA expression of the gene encoding luteinising hormone β-subunit (lhβ) and the suppression of the mRNA expression of the gene encoding follicle-stimulating hormone β-subunit (fshβ) in the pituitary of both male and female roach. Levonorgestrel disrupts the reproductive system of pubertalroach by affecting the pituitary gonadotropin expression and the sex steroid levels in pubertal roach (Rutilus rutilus).
Cell Data
cell lines:
Concentrations:
Incubation Time:
Powder Purity:≥99%
H351: 怀疑引起遗传缺陷
H400: 对水生生物有剧毒
H410: 对水生生物有剧毒并具有长期持续影响
H360: 可能损害生育力或未出生的孩子
H362: 可能对母乳喂养的孩子造成伤害
P273: 避免释放到环境中。
P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。
P405: 密闭存放
P501: 将内容物/容器处理到。。。
P264: 处理后要彻底洗手。
P260: 不要吸入灰尘/烟雾/气体/雾/蒸汽/喷雾。
P270: 使用本产品时,请勿进食、饮水或吸烟。
P391: 收集溢出物
P263: 避免在怀孕期间/哺乳期间接触。
P203: 使用前,获取、阅读并遵守所有安全说明。
P318: 如果暴露或担心,请就医。