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Se-Methylselenocysteine

Alias: Se-Methylselenocysteine Se-MSC MSeCSeMCys SeMSCSe MSC
Cat No.:V7418 Purity: ≥98%
Se-Methylselenocysteine, the precursor of methylselenium, has potent cancer chemopreventive and anti-oxidant effect.
Se-Methylselenocysteine
Se-Methylselenocysteine Chemical Structure CAS No.: 26046-90-2
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
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10mg
50mg
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Other Forms of Se-Methylselenocysteine:

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Top Publications Citing lnvivochem Products
Product Description
Se-Methylselenocysteine, the precursor of methylselenium, has potent cancer chemopreventive and anti-oxidant effect. Se-Methylselenocysteine has oral bioactivity and can cause apoptosis.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
In SKOV-33 cells, selenium (100–400 μM; 3 days) promotes inertness [1]. Cellular inertness mediated by caspase-3 is induced by 100–400 μM of selenium methyl ester for three days [1]. Examination [1]
ln Vivo
Nude mice given FaDu and A253 head and neck xenografts tumor activity have increased CDDP and cyclophosphamide resistance when treated with selenium selenium (0.2 mg/mouse; face; once daily for 14 days)[2]. For ten months, methyltyrosine (0.75 mg/kg body weight per day) was administered intraperitoneally (IT) to mice suffering from Alzheimer's disease (AD). Reduces oxidative intermediates, neural pathways, and levels of various metal ions. It also inhibits the expression of precursor protein APP and beta-enzyme (BACE1), which lowers the production of amyloid-beta peptide (Aβ), forms fragmented tau hyperphosphorylation, and forms neurofibrillary tangles by promoting protein phosphatase 2A (PP2A) activity (NFT). This protects synaptic proteins and neuronal activity, which in turn improves spatial learning and memory deficits in AD models [3].
Cell Assay
Apoptosis Analysis[1]
Cell Types: SKOV-3 Cell
Tested Concentrations: 100, 200, 400 μM
Incubation Duration: 3 days
Experimental Results: Resulted in a significant increase in the accumulation of Sub-G1 phase, which occurred in a SeMSC concentration and culture time dependence.

Western Blot Analysis[1]
Cell Types: SKOV-3 Cell
Tested Concentrations: 100, 200, 400 μM
Incubation Duration: 3 days
Experimental Results: Resulted in diminished expression of the 32 kDa form of procaspase-3.
Animal Protocol
Animal/Disease Models: Female athymic nude mice (bearing human A253 and FaDu squamous cell carcinoma xenografts) [ 2]
Doses: 0.2mg/only
Route of Administration: po; ]. one time/day for 14 days (7 days before and 7 days after cyclophosphamide or CDDP, 14 days total) Experimental Results:
References
[1]. Yeo JK, et al. Se-methylselenocysteine induces apoptosis through caspase activation and Bax cleavage mediated by calpain in SKOV-3 ovarian cancer cells. Cancer Lett. 2002 Aug 8;182(1):83-92.
[2]. Cao S, et al. Se-methylselenocysteine offers selective protection against toxicity and potentiates the antitumour activity of anticancer drugs in preclinical animal models. Br J Cancer. 2014 Apr 2;110(7):1733-43.
[3]. Xie Y, et al. Se-Methylselenocysteine Ameliorates Neuropathology and Cognitive Deficits by Attenuating Oxidative Stress and Metal Dyshomeostasis in Alzheimer Model Mice. Mol Nutr Food Res. 2018 Jun;62(12):e1800107.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C4H9NO2SE
Molecular Weight
182.081
Exact Mass
182.9799
CAS #
26046-90-2
Related CAS #
Se-Methylselenocysteine hydrochloride;863394-07-4
Appearance
Typically exists as solids (or liquids in special cases) at room temperature
SMILES
[Se](C([H])([H])[H])C([H])([H])[C@@]([H])(C(=O)O[H])N([H])[H]
Synonyms
Se-Methylselenocysteine Se-MSC MSeCSeMCys SeMSCSe MSC
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
H2O : ~83.33 mg/mL (~457.66 mM)
DMSO :< 1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: 50 mg/mL (274.60 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with sonication.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 5.4921 mL 27.4605 mL 54.9209 mL
5 mM 1.0984 mL 5.4921 mL 10.9842 mL
10 mM 0.5492 mL 2.7460 mL 5.4921 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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