MedKoo Cat#: 463885 | Name: Se-Methylselenocysteine HCl
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

Se-Methylselenocysteine, also known as MSeC and SeMCys, is a drug potentially for the treatment of solid tumours. Se-methylselenocysteine offers selective protection against organ-specific toxicity induced by clinically active agents and enhances further antitumour activity, resulting in improved therapeutic index. Se-methylselenocysteine exerts pro-apoptosis effects through increasing Cx43 expression, which in turn down-regulates Bcl-2 and up-regulates bad expression.

Chemical Structure

Se-Methylselenocysteine HCl
Se-Methylselenocysteine HCl
CAS#863394-07-4 (HCl)

Theoretical Analysis

MedKoo Cat#: 463885

Name: Se-Methylselenocysteine HCl

CAS#: 863394-07-4 (HCl)

Chemical Formula: C4H10ClNO2Se

Exact Mass: 218.9565

Molecular Weight: 218.54

Elemental Analysis: C, 21.98; H, 4.61; Cl, 16.22; N, 6.41; O, 14.64; Se, 36.13

Price and Availability

Size Price Availability Quantity
25mg USD 250.00 2 Weeks
50mg USD 400.00 2 Weeks
100mg USD 650.00 2 Weeks
250mg USD 950.00 2 Weeks
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Synonym
Se-Methylselenocysteine HCl; Se Methylselenocysteine HCl; Se-Methylselenocysteine hydrochloride; Se Methylselenocysteine hydrochloride; Methylselenocysteine; Se-MeSeCys; Se-methyl-L-Selenocysteine;
IUPAC/Chemical Name
(R)-2-amino-3-(methylselanyl)propanoic acid hydrochloride
InChi Key
JMPVTFHGWJDSDV-DFWYDOINSA-N
InChi Code
InChI=1S/C4H9NO2Se.ClH/c1-8-2-3(5)4(6)7;/h3H,2,5H2,1H3,(H,6,7);1H/t3-;/m0./s1
SMILES Code
C[Se]C[C@@H](C(O)=O)N.Cl
Appearance
Solid powder
Purity
>98% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO, DMF, and PBS (pH 7.2)
Shelf Life
>2 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info
Product Data
Biological target:
Se-methylselenocysteine prevents tert-butyl hydroperoxide-induced increases in malondialdehyde (MDA) levels and glutathione reductase and glutathione peroxidase (GPX) activity, as well as decreases in glutathione (GSH) levels, in HepG2 cells. It also has an additive effect on irinotecan-induced tumor growth reduction in a FaDu mouse xenograft model.
In vitro activity:
This study investigated the cytotoxic effects of Se-methylselenocysteine in vitro. There were no signs of general toxicity of Se-methylselenocysteine-polyglycerol dendrimer (SeMeCys-DPGLy) against CHO-K1 cells detectable when cell viability was greater than 98%. Additionally, SeMeCys-DPGLy reduced head and neck squamous cell carcinoma cell viability and proliferation at higher doses and long incubation times. Reference: J Biomater Sci Polym Ed. 2022 Apr;33(5):651-667. https://pubmed.ncbi.nlm.nih.gov/34809530/
In vivo activity:
This study determined that Se-methylselenocysteine improved cognitive deficits by attenuating synaptic and metabolic abnormalities associated with Alzheimer’s disease in mice. There were differentially expressed proteins related to metabolism, synapses, and antioxidant proteins in diseased mice compared to wild type. Se-Methylselenocysteine treatment reversed 138 proteins in the diseased group, suggesting its influence on key factors in Alzheimer's disease pathology. Reference: ACS Chem Neurosci. 2021 Apr 7;12(7):1112-1132. https://pubmed.ncbi.nlm.nih.gov/33689275/
Solvent mg/mL mM
Solubility
DMF 1.0 4.58
DMSO 1.0 4.58
PBS (pH 7.2) 10.0 45.76
Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Preparing Stock Solutions

The following data is based on the product molecular weight 218.54 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
1. Gonçalves Correa ND, Silva FD, Vieira DP, Soares CRJ, de Queiroz AAA. In vitro cytotoxic data on Se-methylselenocysteine conjugated to dendritic poly(glycerol) against human squamous carcinoma cells. J Biomater Sci Polym Ed. 2022 Apr;33(5):651-667. doi: 10.1080/09205063.2021.2008788. Epub 2021 Dec 19. PMID: 34809530. 2. Selvam AK, Jawad R, Gramignoli R, Achour A, Salter H, Björnstedt M. A Novel mRNA-Mediated and MicroRNA-Guided Approach to Specifically Eradicate Drug-Resistant Hepatocellular Carcinoma Cell Lines by Se-Methylselenocysteine. Antioxidants (Basel). 2021 Jul 7;10(7):1094. doi: 10.3390/antiox10071094. PMID: 34356326; PMCID: PMC8301172. 3. Ma J, Huang J, Sun J, Zhou Y, Ji X, Guo D, Liu C, Li J, Zhang J, Song H. L-Se-methylselenocysteine sensitizes lung carcinoma to chemotherapy. Cell Prolif. 2021 May;54(5):e13038. doi: 10.1111/cpr.13038. Epub 2021 Apr 1. PMID: 33793020; PMCID: PMC8088472. 4. Du X, Shi Q, Zhao Y, Xie Y, Li X, Liu Q, Iqbal J, Zhang H, Liu X, Shen L. Se-Methylselenocysteine (SMC) Improves Cognitive Deficits by Attenuating Synaptic and Metabolic Abnormalities in Alzheimer's Mice Model: A Proteomic Study. ACS Chem Neurosci. 2021 Apr 7;12(7):1112-1132. doi: 10.1021/acschemneuro.0c00549. Epub 2021 Mar 9. PMID: 33689275.
In vitro protocol:
1. Gonçalves Correa ND, Silva FD, Vieira DP, Soares CRJ, de Queiroz AAA. In vitro cytotoxic data on Se-methylselenocysteine conjugated to dendritic poly(glycerol) against human squamous carcinoma cells. J Biomater Sci Polym Ed. 2022 Apr;33(5):651-667. doi: 10.1080/09205063.2021.2008788. Epub 2021 Dec 19. PMID: 34809530. 2. Selvam AK, Jawad R, Gramignoli R, Achour A, Salter H, Björnstedt M. A Novel mRNA-Mediated and MicroRNA-Guided Approach to Specifically Eradicate Drug-Resistant Hepatocellular Carcinoma Cell Lines by Se-Methylselenocysteine. Antioxidants (Basel). 2021 Jul 7;10(7):1094. doi: 10.3390/antiox10071094. PMID: 34356326; PMCID: PMC8301172.
In vivo protocol:
1. Ma J, Huang J, Sun J, Zhou Y, Ji X, Guo D, Liu C, Li J, Zhang J, Song H. L-Se-methylselenocysteine sensitizes lung carcinoma to chemotherapy. Cell Prolif. 2021 May;54(5):e13038. doi: 10.1111/cpr.13038. Epub 2021 Apr 1. PMID: 33793020; PMCID: PMC8088472. 2. Du X, Shi Q, Zhao Y, Xie Y, Li X, Liu Q, Iqbal J, Zhang H, Liu X, Shen L. Se-Methylselenocysteine (SMC) Improves Cognitive Deficits by Attenuating Synaptic and Metabolic Abnormalities in Alzheimer's Mice Model: A Proteomic Study. ACS Chem Neurosci. 2021 Apr 7;12(7):1112-1132. doi: 10.1021/acschemneuro.0c00549. Epub 2021 Mar 9. PMID: 33689275.
1: Schnabel R, Lubos E, Messow CM, Sinning CR, Zeller T, Wild PS, Peetz D, Handy DE, Munzel T, Loscalzo J, Lackner KJ, Blankenberg S. Selenium supplementation improves antioxidant capacity in vitro and in vivo in patients with coronary artery disease The SElenium Therapy in Coronary Artery disease Patients (SETCAP) Study. Am Heart J. 2008 Dec;156(6):1201.e1-11. doi: 10.1016/j.ahj.2008.09.004. PMID: 19033020; PMCID: PMC3624729.