Toluene diisocyanate manufacturer Knowledge N-Acetyl-L-methionine N-Acetyl-L-methionine

N-Acetyl-L-methionine N-Acetyl-L-methionine

N-acetyl-L-methionine structural formula

Structural formula

Business number 01DY
Molecular formula C7H13NO3S
Molecular weight 191.25
label

N-acetyl L-methionine,

CH3SCH2CH2CH(NHCOCH3)CO2H

Numbering system

CAS number:65-82-7

MDL number:MFCD00064441

EINECS number:200-617-7

RTECS number:PD0480000

BRN number:1725552

PubChem number:24845156

Physical property data

1. Character:Colorless or glossy white crystals or white powder. Odorless or nearly odorless


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


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


4. Melting point (ºC):103 -106


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


6. Boiling point (ºC, 5.2kPa): Unsure


7. Refractive index:-21 ° (C=1, H2O)


8. Flash point (ºC): Unsure


9. Specific optical rotation (º):-20 º (c=4 H2O)


10. Autoignition point or ignition temperature (ºC): Unsure


11. Vapor pressure (kPa,25ºC): Unsure


12. 17. Explosion upper limit (%,V/V): Unsure


18. Lower explosion limit (%,V/V): Unsure


19. Solubility:Soluble in water, ethanol, alkaline solution and dilute inorganic acid, almost insoluble in ether

Toxicological data

Acute toxicity: Mouse intravenous LD50: 435 mg/kg;

Ecological data

None yet

Molecular structure data

1. Molar refractive index:47.62


2. Molar volume (m3/mol):158.9


3. isotonic specific volume (90.2K):413.5


4. Surface Tension (dyne/cm):45.7


5. Polarizability10-24cm3):18.87

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: 2

6. Topological molecule polar surface area 91.7

7. Number of heavy atoms: 12

8. Surface charge: 0

9. Complexity: 172

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

ByL-Methionine is acetylated with excess acetic acid or acetic anhydride .

Synthesis method

None yet

Purpose

Nutritional supplements.

” align=left> 3. Isotonic specific volume (90.2K):413.5


4. Surface Tension (dyne/cm):45.7


5. Polarizability10-24cm3):18.87

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: 2

6. Topological molecule polar surface area 91.7

7. Number of heavy atoms: 12

8. Surface charge: 0

9. Complexity: 172

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

ByL-Methionine is acetylated with excess acetic acid or acetic anhydride .

Synthesis method

None yet

Purpose

Nutritional supplements.

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