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:95-96-5

MDL number:MFCD00011685

EINECS number:202-468-3

RTECS number:JH1100000

BRN number:82121

PubChem number:24858300

Physical property data

1. Characteristics: Undetermined

2. Density (g/mL, 25℃): Undetermined

3. Relative vapor density (g/mL, air=1 ): Undetermined

4. Melting point (oC): 116-119

5. Boiling point (oC, normal pressure): Undetermined

6. Boiling point (oC, 8mmHg): 142

7. Refractive index: Undetermined

8. Flash point (oC): 180

9. Specific rotation ( o): Undetermined

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

11. Vapor pressure (mmHg, oC): Undetermined

12. Saturated vapor pressure (kPa, oC): Undetermined

13. Heat of combustion (KJ/mol): Undetermined

14. Critical temperature (oC): Undetermined Determined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) partition coefficient: Undetermined

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

18. Explosion lower limit (%, V/V): Undetermined

19. Solubility: Undetermined

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Toxicological data

1. Other multiple dose toxicity: Oral TDLo for dogs: 35mg/kg/2W-I; Oral TDLo for dogs: 9100mg/kg/13W-I;

Ecological data

None yet

Molecular structure data

1. Molar refractive index: 31.20

2. Molar volume (cm³/mol): 125.0

3. Isotonic specific volume (90.2K ): 282.4

4. Surface tension (dyne/cm): 26.0

5. Polarizability (10-24cm3): 12.37

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 0.6

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 4

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: 3

6. Topological molecule polar surface area 52.6

7. Number of heavy atoms: 10

8. Surface charge: 0

9. Complexity: 155

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 2

13. Determine chemical bonds.Number of 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

Using D,L-lactic acid as raw material, D,L-lactide is synthesized through dehydration cyclization in the presence of a catalyst. The crude product was purified by recrystallization to prepare high-yield, high-purity D,L-lactide.

Purpose

Mainly used in medicine.

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