d-leucine

structural formula

• 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:328-38-1

mdl number:mfcd00063088

einecs number:206-327-7

rtecs number:oh2840000

brn number:1721721

pubchem number:24874859

physical property data

一 , physical property data

traits ：white flaky crystals.

density (g/ml,25/4℃): not available

relative vapor density (g/ml, air=1)：not available

melting point (ºc):293

boiling point (ºc, normal pressure): not available

boiling point (ºc, 5.2kpa): not available

refraction rate: not available

flash point (ºc): not available

optical rotation (º): 10.34

spontaneous combustion point or ignition temperature (ºc): not available

steam pressure (kpa, 25ºc): not available

saturated vapor pressure (kpa, 60ºc): not available

burn heat (kj/mol):not available

critical temperature (ºc): not available

critical pressure (kpa): not available

oil and water log value of the (octanol/water) partition coefficient:not available

explosion upper limit (%, v/v): not available

explosion lower limit (%, v/v): not available

dissolve sex: soluble in water

toxicological data

two , toxicological data:

acute toxicity:mid lethal dose (rat, intraperitoneal)642mg/kg. .

ecological data

three , ecological data:

1 ,other harmful effects: this substance may be harmful to the environment, and special treatment should be given to water bodies. notice.

molecular structure data

1. molar refractive index: 34.86

2. molar volume (m³/mol）：126.6

3. isotonic specific volume (90.2k):316.4solubility ：soluble in water

toxicological data

two , toxicological data:

acute toxicity:mid lethal dose (rat, intraperitoneal)642mg/kg. .

ecological data

three , ecological data:

1 ,other harmful effects: this substance may be harmful to the environment, and special treatment should be given to water bodies. notice.

molecular structure data

1. molar refractive index: 34.86

2. molar volume (m³/mol）：126.6

3. isotonic specific volume (90.2k):316.4

4. surface tension (dyne/cm):39.0

5. polarizability（10^-24cm³):13.82

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: 3

4. number of rotatable chemical bonds: 3

5. number of tautomers: none

6. topological molecule polar surface area 63.3

7. number of heavy atoms: 9

8. surface charge: 0

9. complexity: 101

10. number of isotope atoms: 0

11. determine the number of atomic stereocenters: 1

12. uncertain number of atomic stereocenters: 0

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

should be sealed and stored dry.

synthesis method

use acetyl-dl-leucine as raw material, remove l-leucine through acylase treatment, then hydrolyze with hydrochloric acid to obtain crude product, and obtain pure product after crystallization and purification.

purpose

for biochemical research.

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4. surface tension (dyne/cm):39.0

5. polarizability（10^-24cm³):13.82

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: 3

4. number of rotatable chemical bonds: 3

5. number of tautomers: none

6. topological molecule polar surface area 63.3

7. number of heavy atoms: 9

8. surface charge: 0

9. complexity: 101

10. number of isotope atoms: 0

11. determine the number of atomic stereocenters: 1

12. uncertain number of atomic stereocenters: 0

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

should be sealed and stored dry.

synthesis method

use acetyl-dl-leucine as raw material, remove l-leucine through acylase treatment, then hydrolyze with hydrochloric acid to obtain crude product, and obtain pure product after crystallization and purification.

purpose

for biochemical research.