| Size | Price | Stock | Qty |
|---|---|---|---|
| 1mg |
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| 5mg |
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| 10mg |
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| Other Sizes |
| Targets |
No classical pharmacological target. Its functional role is as a labeled cysteine building block; the 13C3/15N label enables mass-spectrometric quantification of cysteine-containing peptides and tracing of cysteine incorporation into proteins and glutathione.
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|---|---|
| ln Vitro |
Drug compounds have included stable heavy isotopes of carbon, hydrogen, and other elements, mostly as quantitative tracers while the drugs were being developed. Because deuteration may affect a drug's pharmacokinetics and metabolic properties, it is a cause for concern [75].
No IC50 or EC50 applies. Quality attributes include isotopic enrichment (≥98 atom% 13C and ≥98 atom% 15N), chemical purity, and coupling efficiency. These parameters ensure reliable performance as an internal standard or labeled precursor. |
| ln Vivo |
No intrinsic in vivo pharmacological activity. In tracer studies, labeled cysteine is incorporated into proteins and glutathione, and the label is quantified to assess redox metabolism and protein synthesis.
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| Enzyme Assay |
Purity and isotopic enrichment are verified by HPLC, LC-MS, and NMR. The compound is used to prepare internal standard solutions for quantitative cysteine and peptide analysis. High-resolution mass spectrometry confirms the 13C3/15N isotopic pattern.
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| Cell Assay |
In cell-based studies, labeled cysteine is supplied in culture medium, and label incorporation into proteins or glutathione is measured by LC-MS/MS to assess redox flux and synthesis rates.
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| Animal Protocol |
In vivo tracer studies administer labeled cysteine by infusion or feeding. Tissue proteins and glutathione are analyzed by mass spectrometry to determine 13C and 15N enrichment and calculate fractional synthesis rates.
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| References |
| Molecular Formula |
C37H31NO4S
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|---|---|
| Molecular Weight |
589.682722330093
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| Exact Mass |
589.204
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| CAS # |
360795-94-4
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| Related CAS # |
Fmoc-Cys(Trt)-OH;103213-32-7
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| PubChem CID |
163408955
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| Appearance |
White to off-white solid
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| LogP |
8
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| Hydrogen Bond Donor Count |
2
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| Hydrogen Bond Acceptor Count |
5
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| Rotatable Bond Count |
11
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| Heavy Atom Count |
43
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| Complexity |
841
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| Defined Atom Stereocenter Count |
1
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| SMILES |
C1=CC=C(C=C1)C(C2=CC=CC=C2)(C3=CC=CC=C3)S[13CH2][13C@@H]([13C](=O)O)[15NH]C(=O)OCC4C5=CC=CC=C5C6=CC=CC=C46
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| InChi Key |
KLBPUVPNPAJWHZ-OUVSSECZSA-N
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| InChi Code |
InChI=1S/C37H31NO4S/c39-35(40)34(38-36(41)42-24-33-31-22-12-10-20-29(31)30-21-11-13-23-32(30)33)25-43-37(26-14-4-1-5-15-26,27-16-6-2-7-17-27)28-18-8-3-9-19-28/h1-23,33-34H,24-25H2,(H,38,41)(H,39,40)/t34-/m0/s1/i25+1,34+1,35+1,38+1
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| Chemical Name |
(2R)-2-(9H-fluoren-9-ylmethoxycarbonyl(15N)amino)-3-tritylsulfanyl(1,2,3-13C3)propanoic acid
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| HS Tariff Code |
2934.99.9001
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| 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)
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| Solubility (In Vitro) |
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
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|---|---|
| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 1.6958 mL | 8.4792 mL | 16.9584 mL | |
| 5 mM | 0.3392 mL | 1.6958 mL | 3.3917 mL | |
| 10 mM | 0.1696 mL | 0.8479 mL | 1.6958 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.
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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