dl-ethionine dl-ethionine
structural formula
| business number | 01ej |
|---|---|
| molecular formula | c6h13no2s |
| molecular weight | 163.24 |
| label |
ethioninebutyric acid, dl-2-amino-4-(ethylthio)butyric acid |
numbering system
cas number:67-21-0
mdl number:mfcd00063102
einecs number:200-647-0
rtecs number:es6825200
brn number:1722529
pubchem number:24894606
physical property data
1. character: white tablet crystal-like.
2. density (g/ml,25/4 ℃): undetermined
3. relative vapor density (g/ml,air=1): undetermined
4. melting point (ºc): 257～260℃ decomposition
5. boiling point (ºc,normal pressure): not ok
6. boiling point (ºc,5.2kpa): not ok
7. refractive index: not ok
8. flashpoint (ºc): undetermined
9. specific optical rotation ( º): undetermined
10. spontaneous ignition point or ignition combustion temperature (ºc) : undetermined
11. vapor pressure (kpa,25ºc): not ok
12. saturation vapor pressure ( kpa,60ºc): undetermined
18. lower explosion limit (%,v/v) : undetermined
19. solubility: soluble soluble in water, dilute acid and dilute alkali solutions, insoluble in ether.
toxicological data
none yet
ecological data
none yet
molecular structure data
1. molar refractive index:42.90
2. molar volume (m3/mol）：140.2
3. isotonic specific volume (90.2k):369.7
4. surface tension (dyne/cm):48.3
5. polarizability（10-24cm3):17.00
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): none
2. number of hydrogen bond donors: 2
3. number of hydrogen bond acceptors: 4
4. number of rotatable chemical bonds: 5
5. number of tautomers: none
6. topological molecule polar surface area 88.6
7. number of heavy atoms: 10
8. surface charge: 0
9. complexity: 108
10. number of isotope atoms: 0
11. determine the number of atomic stereocenters: 0
12. uncertain number of atomic stereocenters: 1
13. determine the number of chemical bond stereocenters: 0
14. number of uncertain chemical bond stereocenters: 0
15. number of covalent bond units: 1
properties and stability
none yet
storage method
this product should be sealed in a cool, dry place away from light save.
synthesis method
none yet
purpose
for biochemical research.
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4. surface tension (dyne/cm):48.3
5. polarizability（10-24cm3):17.00
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): none
2. number of hydrogen bond donors: 2
3. number of hydrogen bond acceptors: 4
4. number of rotatable chemical bonds: 5
5. number of tautomers: none
6. topological molecule polar surface area 88.6
7. number of heavy atoms: 10
8. surface charge: 0
9. complexity: 108
10. number of isotope atoms: 0
11. determine the number of atomic stereocenters: 0
12. uncertain number of atomic stereocenters: 1
13. determine the number of chemical bond stereocenters: 0
14. number of uncertain chemical bond stereocenters: 0
15. number of covalent bond units: 1
properties and stability
none yet
storage method
this product should be sealed in a cool, dry place away from light save.
synthesis method
none yet
purpose
for biochemical research.