Polyether_Polyether Polyol Knowledge DL-Threonine DL-Threonine

DL-Threonine DL-Threonine

DL-threonine structural formula

Structural formula

Business number 01RD
Molecular formula C4H9NO3
Molecular weight 119.12
label

(±)-2-Amino-3-hydroxybutyric acid,

(±)-2-Amino-3-hydroxybutyric acid

Numbering system

CAS number:80-68-2

MDL number:MFCD00063722

EINECS number:201-300-6

RTECS number:None

BRN number:1721647

PubChem number:24900522

Physical property data

1. Physical property data


1. Character: Those containing half a molecule of crystal water are colorless crystals,229-230Decomposed at ℃, odorless, slightly sweet taste


2. Density (g/mL,25/4℃): Unsure


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


4. Melting point (ºC):244


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


6. Boiling point (ºC,5.2kPa): Unsure


7. Refractive index: Uncertain


8. Flash Point (ºC): Unsure


9. Specific optical rotation (º): Unsure


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


11. Vapor pressure (kPa,25ºC): Unsure


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


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


19. Solubility:25Solubility in water20.1gram/100 ml. Insoluble in methanol and ethanol (0.07gram/100Milliliters,25℃ ), acetone

Toxicological data

None yet

Ecological data

None yet

Molecular structure data

5. Molecular property data:


1. Molar refractive index: 27.13


2. Molar Volume (m3/mol):91.1


3. isotonic specific volume (90.2K):253.6


4. Surface Tension (dyne/cm):60.0


5. Polarizability10-24cm3):10.75

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: 2

5. Number of tautomers: none

6. Topological molecule polar surface area 83.6

7. Number of heavy atoms: 8

8. Surface charge: 0

9. Complexity: 93.3

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 2

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

None yet

Synthesis method

None yet

Purpose

None yet

ont-family: Arial; mso-hansi-font-family: Arial”>5. Molecular property data:


1. Molar refractive index: 27.13


2. Molar Volume (m3/mol):91.1


3. isotonic specific volume (90.2K):253.6


4. Surface Tension (dyne/cm):60.0


5. Polarizability10-24cm3):10.75

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: 2

5. Number of tautomers: none

6. Topological molecule polar surface area 83.6

7. Number of heavy atoms: 8

8. Surface charge: 0

9. Complexity: 93.3

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 2

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

None yet

Synthesis method

None yet

Purpose

None yet

0

9. Complexity: 93.3

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 2

13. Determined number of chemical bond stereocenters: 0

14. Uncertain number of chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

None yet

Storage method

None yet

Synthesis method

None yet

Purpose

None yet

This article is from the Internet, does not represent the position of Toluene diisocyanate reproduced please specify the source.https://www.polyether-factory.com/archives/14724

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