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  2. Amino Acid Derivatives
  3. DL-Cystine

DL-Cystine is a cysteine derivative.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

DL-Cystine Chemical Structure

DL-Cystine Chemical Structure

CAS No. : 923-32-0

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Based on 1 publication(s) in Google Scholar

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Description

DL-Cystine is a cysteine derivative[1].

In Vitro

Amino acids and amino acid derivatives have been commercially used as ergogenic supplements. They influence the secretion of anabolic hormones, supply of fuel during exercise, mental performance during stress related tasks and prevent exercise induced muscle damage. They are recognized to be beneficial as ergogenic dietary substances[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight

240.29

Formula

C6H12N2O4S2

CAS No.
Appearance

Solid

Color

White to off-white

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : 10 mg/mL (41.62 mM; ultrasonic and warming and adjust pH to 12 with 1M NaOH and heat to 60°C)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 4.1616 mL 20.8082 mL 41.6164 mL
5 mM 0.8323 mL 4.1616 mL 8.3233 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation

Purity: ≥98.0%

References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 4.1616 mL 20.8082 mL 41.6164 mL 104.0410 mL
5 mM 0.8323 mL 4.1616 mL 8.3233 mL 20.8082 mL
10 mM 0.4162 mL 2.0808 mL 4.1616 mL 10.4041 mL
15 mM 0.2774 mL 1.3872 mL 2.7744 mL 6.9361 mL
20 mM 0.2081 mL 1.0404 mL 2.0808 mL 5.2020 mL
25 mM 0.1665 mL 0.8323 mL 1.6647 mL 4.1616 mL
30 mM 0.1387 mL 0.6936 mL 1.3872 mL 3.4680 mL
40 mM 0.1040 mL 0.5202 mL 1.0404 mL 2.6010 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Product Name:
DL-Cystine
Cat. No.:
HY-W013940
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