dl-lysine

structural formula

business number	01g7
molecular formula	c6h14n2o2
molecular weight	146.19
label	dl-2,6-diaminocaproic acid, tetracyanoethylene, dl-lysine monohydrate

• 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:70-54-2

mdl number:mfcd00064432

einecs number:200-740-6

rtecs number:none

brn number:1616991

pubchem number:24896317

physical property data

1. properties: colorless crystals

2. density (g/ml, 25/4℃): 1.12

3. relative vapor density (g/ml, air=1): uncertain

4. melting point (ºc): 170 (dec.)(lit.)

5. boiling point (ºc, normal pressure): uncertain

6. boiling point (ºc, 5.2kpa): uncertain

7. refractive index: uncertain

8. flash point (ºc): uncertain

9. specific rotation (º): uncertain

10. autoignition point or ignition temperature (ºc): uncertain

11. vapor pressure ( kpa, 25ºc): uncertain

12. saturated vapor pressure (kpa, 60ºc): uncertain

13. heat of combustion (kj/mol): uncertain

14. critical temperature (ºc): uncertain

15. critical pressure (kpa): uncertain

16. oil-water (octanol/water) partition coefficient relationship value: uncertain

17. explosion upper limit (%, v/v): uncertain

18. explosion lower limit (%, v/v): uncertain

19. solubility: soluble in water, slightly soluble in ethanol, insoluble in ether

toxicological data

none

ecological data

none

molecular structure data

1. molar refractive index: 38.43

2. molar volume (cm³/mol): 129.9

3. isotonic specific volume (90.2k ): 348.1

4. surface tension (dyne/cm): 51.5

5. polarizability (10-24cm3): 15.23

compute chemical data

1. reference value for hydrophobic parameter calculation (xlogp): none

2. number of hydrogen bond donors: 3

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 89.3

7. number of heavy atoms: 10

8. surface charge: 0

9. complexity: 106

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

storage method

this product should be kept sealed, cool and dry.

synthesis method

it can be extracted from the protein hydrolyzate produced by co-heating of protein and alkali or produced by organic synthesis using dihydropyran as raw material. the resulting product is dl-lysine. in fact, it is the same amount. a mixture of d-lysine molecules and l-lysine molecules are optical isomers of each other.

purpose

lysine is a key substance that helps other nutrients be fully absorbed and utilized by the human body. only by supplementing enough l-lysine can the human body improve the absorption and utilization of food protein, achieve balanced nutrition, and promote growth and development.

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