3211-76-5
基本信息
硒代蛋氨酸
L-(+)-硒代蛋氨酸
(S)-(+)-2-氨基-4-(甲基硒)丁酸
L-(+)-2-AMINO-4-(METHYLSELENO)BUTANOIC ACID
L-(+)-SELENOMETHIONINE
L-SELENOMETHIONINE
(S)-(+)-2-AMINO-4-(METHYLSELENO)BUTANOIC ACID
(S)-2-AMINO-4-(METHYLSELENO)BUTYRIC ACID
SELENO-L-METHIONINE
SELENOMETHIONINE, L-(+)-
SEMET
L(+)-SELENOMETHIONINE 99+% E.E.
(S)-2-AMINO-4-(METHYLSELENYL)BUTYRIC ACID
L(+)-Selenomethionine, ee 99+%, 99+%
Butanoic acid, 2-amino-4-(methylseleno)-, (2S)-
L-SELENOMETHIONINE SELENO-L-METHIONINE L-SE-MET-OH
L-selenomethionine (L-se-Met-OH)
BUTYRICACID,2-AMINO-4-(METHYLSELENYL)-,L-
L-SELENOMETHIONINE 0.5%
L-SELENOMETHIONINE USP
THALLIUM ETHYLSUFATE
(S)-(+)-2-Amino-4-(methylseleno)butanoic acid, (S)-2-Amino-4-(methylseleno)butyric acid, L-Selenomethionine, Seleno-L-methionine
物理化学性质
| 熔点 | 265 °C |
| 比旋光度 | 18 º (c=1, 1N HCl) |
| 沸点 | 320.8±37.0 °C(Predicted) |
| 折射率 | 18 ° (C=0.5, 2mol/L HCl) |
| 储存条件 | −20°C |
| 溶解度 | H2O: 50 mg/mL |
| 酸度系数(pKa) | 2.26±0.10(Predicted) |
| 形态 | powder |
| 颜色 | white to off-white |
| 水溶解性 | 可溶于水 |
| Merck | 8441 |
| 化妆品成分功效 | ANTIOXIDANT |
| InChI | InChI=1S/C5H11NO2Se/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1 |
| InChIKey | RJFAYQIBOAGBLC-BYPYZUCNSA-N |
| SMILES | C(O)(=O)[C@@H](N)CC[Se]C |
| LogP | 0.152 (est) |
| CAS 数据库 | 3211-76-5(CAS DataBase Reference) |
安全数据
| 危险性符号(GHS) | ![]() ![]() ![]() GHS06,GHS08,GHS09 |
| 警示词 | 危险 |
| 危险性描述 | H301+H331-H373-H410 |
| 防范说明 | P260-P301+P330+P331+P310-P304+P340+P311-P403+P233 |
| 危险品标志 | T,N |
| 危险类别码 | R23/25-R33-R50/53 |
| 安全说明 | S20/21-S28-S45-S60-S61-S28A |
| 危险品运输编号 | UN 3283 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS号 | EK7713840 |
| F | 10 |
| 危险等级 | 6.1 |
| 包装类别 | III |
| 海关编码 | 29309090 |
| 存储类别 | 6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| 危险性类别 | Acute Tox. 3 Inhalation Acute Tox. 3 Oral Aquatic Acute 1 Aquatic Chronic 1 STOT RE 2 |
应用领域
制备方法
2185-03-7
37773-10-7
3211-76-5
在氮气保护下,将13.75 g L-高丝氨酸内酯盐酸盐与40 mL N,N-二甲基甲酰胺(DMF)混合,搅拌至完全溶解。随后,将15.2 g硒酸甲酯(CAS:37773-10-7)溶于20 mL DMF中,缓慢加入上述反应体系。加热回流反应2小时。反应完成后,用乙酸水溶液调节反应体系的pH至6.0,析出白色固体。将所得固体溶于水和乙醇的混合溶剂中进行重结晶,得到L-硒代蛋氨酸。该合成路线的总收率为72.11%,产物的化学纯度大于99%,对映体过量值(ee)大于99%。
参考文献:
[1] Patent: CN106928110, 2017, A. Location in patent: Paragraph 0028; 0030
知名试剂公司产品信息
L(+)-Selenomethionine, ee 99+%, 99+%(3211-76-5) Acros Organics
L-Selenomethionine,>98.0%(T)(3211-76-5) TCI Shanghai
L-硒代蛋氨酸价格(试剂级)
| 报价日期 | 产品编号 | 产品名称 | CAS号 | 包装 | 价格 |
| 2026/09/15 | HY-B1000AR | L-硒代蛋氨酸 L-SelenoMethionine (Standard) | 3211-76-5 | 10 mg | 360元 |
| 2026/09/15 | HY-B1000AR | L-硒代蛋氨酸 L-SelenoMethionine (Standard) | 3211-76-5 | 25 mg | 660元 |
| 2026/09/15 | HY-B1000AR | L-硒代蛋氨酸 L-SelenoMethionine (Standard) | 3211-76-5 | 50 mg | 1000元 |
常见问题列表
|
Human Endogenous Metabolite
|
L-SelenoMethionine (1-500 μM; 24-72 h) is selectively inhibits the growth of prostate cancer cells, compared with normal cells.
L-SelenoMethionine (500 μM; 48 h) induce apoptosis in prostate cancer cells.
L-SelenoMethionine (500 μM; 48 h) causes an increase in arrest in the G2-M phase of the cell cycle selectively in prostate cancer cells.
L-SelenoMethionine (5 μM; 24 h) mitigates gene expression associated with the cellular stress response from 10 cGy irradiation.
Cell Viability Assay
| Cell Line: | Prostate cancer cells (LNCaP, PC-3, and DU145) and normal prostate cells (PrEC, PrSM, and PrSt) |
| Concentration: | 1, 5, 10, 50, 100, 500 μM |
| Incubation Time: | 24, 48, 72 hours |
| Result: | Inhibited the growth of prostate cancer cells, with a lower IC 50 (1-90 μM) at 72 h than normal prostate cells (>500 μM). |
Apoptosis Analysis
| Cell Line: | Prostate cancer cells (LNCaP, PC-3, and DU145) and normal prostate cells (PrEC, PrSM, and PrSt) |
| Concentration: | 500 μM |
| Incubation Time: | 48 hours |
| Result: |
Exhibited the highest level of DNA condensation in androgen-responsive LNCaP carcinoma cells, followed by PC-3 and DU145 cells.
Exhibited the nicked-end DNA labeling in prostate cancer cells. Promoted the PARP cleavage in prostate cancer cells. |
Cell Cycle Analysis
| Cell Line: | Prostate cancer cells (LNCaP, PC-3, and DU145) and normal prostate cells (PrEC, PrSM, and PrSt) |
| Concentration: | 500 μM |
| Incubation Time: | 48 hours |
| Result: |
Increased the sub-G0-G1 cell fraction of LNCaP (41.5%), PC-3 (12.1%), and DU145 cells (11.2%).
Caused a significant increases in G2 cells , particularly in LNCaP (13%), PC-3 (32%), and DU145 (20%) cells. |
RT-PCR
| Cell Line: | Human thyroid epithelial cells (HTori-3) |
| Concentration: | 5 μM |
| Incubation Time: | 24 hours |
| Result: | Downregulated the CDC6, GADD45A, FAS and ATF3 in irradiated cells. |
L-SelenoMethionine (0.06-12 μg/g diet; p.o. for 3 d) partially or completely prevent the decrease in the serum or plasma levels of total antioxidants in rats exposed to gamma rays, protons or HZE particles.


