structural formula

business number	0181
molecular formula	c6h14n2o2
molecular weight	146.19
label	(s)-2,6-diaminocaproic acid, (s)-2,6-diaminocaproic acid, (s)-(+)-lysine, amino acid drugs, intermediates, biochemical reagents

• 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:56-87-1

mdl number:mfcd00064433

einecs number:200-294-2

rtecs number:ol5540000

brn number:1722531

pubchem number:24896404

physical property data

1. properties: colorless needle-like crystals or crystalline powder. optically active.

2. density (g/ml, 25/4℃): 1.125

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

4. melting point (ºc): it turns black when heated to 210℃ and decomposes at 224.5℃.

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

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

7. refractive index: undetermined

8. flash point (ºc): undetermined

9. specific rotation (º): α]d20 +14.6° (c=6.5, in water), [ α]d23+25.9° (c=2, in 6mol/l hydrochloric acid)

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

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-water (octanol/water) partition coefficient pair value: undetermined

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

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

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

toxicological data

1. reproductive toxicity: oral tdlo of female rats: 138mg/kg, conception takes 5-15 days; oral tdlo of female rats: 72450mg/kg, conception takes 10-20 days; oral tdlo of female rats: 90450mg/kg, conception occurs after 10-20 days; oral tdlo for female rats: 81 mg/kg, conception occurs after 10-20 days; intraperitoneal tdlo for female rats: 44 mg/kg, conception occurs after 5-15 days 2. mutagenicity: sister chromatid exchangetest system : human lymphocytes: <span lang=e body

ecological data

none yet

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: 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

1. found in tobacco leaves.

storage method

this product should be sealed and stored dry and below 0℃.

synthesis method

1. l-lysine is generally supplied to the market as l-lysine hydrochloride [657-27-2]. free l-lysine is easily deliquescent and prone to yellowing and deterioration due to its free amino groups. , and has a pungent fishy smell, making it difficult to store for a long time. l-lysine hydrochloride is relatively stable, not easy to deliquesce, and easy to store. however, the demand for l-lysine in some uses is also increasing, such as peptide synthesis chemistry, biochemical research, and preparation of lysine derivatives. free l-lysine can be prepared from l-lysine hydrochloride.

2. tobacco: bu, 22; fc, 21; can be obtained by hydrolysis and refining of animal protein. it can also be synthesized from benzoyl piperidine.

purpose

for biochemical research. medium preparation.

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