1. Metabolic Enzyme/Protease
  2. Endogenous Metabolite
  3. L-Homocystine

L-Homocystine is the oxidized member of the L-homocysteine. Homocysteine is a pro-thrombotic factor, vasodilation impairing agent, pro-inflammatory factor and endoplasmatic reticulum-stress inducer used to study cardiovascular disease mechanisms.

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

L-Homocystine Chemical Structure

L-Homocystine Chemical Structure

CAS No. : 626-72-2

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Based on 1 publication(s) in Google Scholar

Other Forms of L-Homocystine:

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Description

L-Homocystine is the oxidized member of the L-homocysteine. Homocysteine is a pro-thrombotic factor, vasodilation impairing agent, pro-inflammatory factor and endoplasmatic reticulum-stress inducer used to study cardiovascular disease mechanisms.

IC50 & Target

Human Endogenous Metabolite

 

In Vivo

A single or multiple doses of L-Homocystine administered to mice during organogenesis can aggravate the developmental disturbances caused by a single dose of VPA administered on GD 8. Whereas, VPA lowers significantly plasma FA and vitamin B12 concentrations, it has no direct impact on the homocysteine concentrations. Therefore, it is proposed that high levels of homocysteine disturb the FA, vitamin B12, and possibly methionine metabolism thus providing a favorable situation for VPA to interfere with the development of susceptible embryos[1].

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

Molecular Weight

268.35

Formula

C8H16N2O4S2

CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

OC([C@@H](N)CCSSCC[C@H](N)C(O)=O)=O

Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.

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

H2O : 1.67 mg/mL (6.22 mM; ultrasonic and warming and adjust pH to 2 with HCl and heat to 60°C)

DMSO : 1 mg/mL (3.73 mM; ultrasonic and adjust pH to 5 with HCl; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.7265 mL 18.6324 mL 37.2648 mL
5 mM 0.7453 mL 3.7265 mL 7.4530 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

* 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
×
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:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
Purity & Documentation

Purity: ≥98.0%

References
Animal Administration
[1]

Mice[1]
Groups of mice are first injected on GD 8 with a single dose of 75 mg/kg of L-Homocystine or an equal volume of saline. One half of the L-Homocystine-treated animals then receive a single dose of 600 mg/kg of VPA ((H-HoCys-OH)2+VPA group), while the other half are injected with a proportionate volume of saline (L-Homocystine+saline group). In the other experiment, mice are treated with a daily dose of 75 mg/kg of L-Homocystine or a proportionate volume of saline starting from GD 5 and continue through GD 10. One half of the L-Homocystine-treated animals also have a single exposure to 600 mg/kg of VPA (L-Homocystine+VPA group) or a proportionate volume of saline (L-Homocystine+saline group) on GD 8. The total volume of fluid injected corresponded to the body weight and does not exceed 0.45 mL[1].

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

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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO / H2O 1 mM 3.7265 mL 18.6324 mL 37.2648 mL 93.1619 mL
H2O 5 mM 0.7453 mL 3.7265 mL 7.4530 mL 18.6324 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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L-Homocystine
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