L-cystathionine

Structural formula

Business number	0182
Molecular formula	C7H14N2O4S
Molecular weight	222.26
label	(R)-S-(2-amino-2-carboxyethyl)-L-cysteine, (R)-S-(2-Amino-2-carboxyethyl)-L-homocysteine

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

Numbering system

CAS number:56-88-2

MDL number:MFCD00036685

EINECS number:200-295-8

RTECS number:None

BRN number:2505200

PubChem number:24892965

Physical property data

1. Character: Crystal.

2. Density (g/mL,25/4℃) ： Undetermined

3. Relative vapor density (g/mL,AIR=1): Undetermined

4. Melting point (ºC): 240 ～250℃（262~263℃).

5. Boiling point (ºC,Normal pressure): Undetermined

6. Boiling point (ºC,5.2kPa): undetermined

7. Refractive index: not OK

8. Flashpoint (ºC): Undetermined

9. Specific optical rotation ( º): Undetermined

10. Spontaneous ignition point or ignition Combustion temperature (ºC): not OK

11. Vapor Pressure (kPa,25ºC): Undetermined

12. Saturated vapor pressure (kPa,60ºC): Undetermined

13. Heat of combustion (KJ/mol): Undetermined

14. Critical temperature (ºC): Undetermined

15. Critical Pressure (KPa): Undetermined

16. Oil and water (octanol /Water) partition coefficient pair Value: Undetermined

17. Explosion limit (%,V/V): Undetermined

18. Lower explosion limit (%,V/V): not OK

19. Solubility: Not available Sure.

Toxicological data

None yet

Ecological data

None yet

Molecular structure data

5. Molecular property data:

1. Molar refractive index: 52.59

2. Molar volume (m³/mol）：155.4

3. Isotonic specific volume (90.2K):457.7

4. Surface Tension (dyne/cm):75.2

5. Polarizability（10^-24cm³): 20.84

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): -6

2. Number of hydrogen bond donors: 4

3. Number of hydrogen bond acceptors: 6

4. Number of rotatable chemical bonds: 7

5. Number of tautomers:

6. Topological molecular polar surface area (TPSA):127

7. Number of heavy atoms: 14

8. Surface charge: 0

9. Complexity: 212

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 2

12. The number of uncertain atomic stereocenters: 0

13. Determine the number of stereocenters of chemical bonds: 0

14. Uncertain number of chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

None yet

Storage method

This product should be kept sealed.

Synthesis method

Generated by the interaction of o-succinyl homoserine and cysteine. Cystathionine is cystathionine beta–Lyase removes pyruvate and NH3generates homocysteine.

Purpose

For biochemical research.

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