Epoxy curing agent Knowledge 5β-cholestane

5β-cholestane

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5β-cholestane structural formula

Structural formula

Business number 0525
Molecular formula C27H48
Molecular weight 372.68
label

Coprostane

Numbering system

CAS number:481-20-9

MDL number:MFCD00067141

EINECS number:None

RTECS number:None

BRN number:None

PubChem number:24892458

Physical property data

1. Character: Undetermined


2. Density (g/ m3,25/4): Undetermined


3. Relative vapor density (g/cm3,air =1): Undetermined


4. Melting point (ºC): Undetermined


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 optical rotation (º): Undetermined


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 and water (octanol/Logarithmic value of partition coefficient for water: undetermined


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


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


19. Solubility: Undetermined

Toxicological data

None

Ecological data

This substance may be harmful to the environment, and special attention should be paid to water bodies.

Molecular structure data

1 Molar refractive index:118.76


2 Molar Volumem3/mol)409.1


3 Isotonic specific volume (90.2K):972.0


4 Surface tensiondyne/cm)31.8


5 Polarizability(10-24cm347.08

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 11.1

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 0

4. Number of rotatable chemical bonds: 5

5. Number of tautomers: none

6. Topological molecule polar surface area 0

7. Number of heavy atoms: 27

8. Surface charge: 0

9. Complexity: 506

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 8

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

Use and store according to specifications, no decomposition will occur, and avoid contact with oxides

Storage method

Save in a sealed manner and place it in a ventilated and dry place to avoid contact with other oxides.

Synthesis method

None

Purpose

None

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