structural formula
| business number | 038n |
|---|---|
| molecular formula | c20h28o |
| molecular weight | 284.40 |
| label |
vitamin a aldehyde, enzymes |
numbering system
cas number:116-31-4
mdl number:mfcd00001550
einecs number:204-135-8
rtecs number:vh6407000
brn number:none
pubchem number:24899355
physical property data
1. character: undetermined
2. density (g/ml,25℃） : undetermined
3. relative vapor density (g/ml,air =1): undetermined
4. melting point ( ºc):64-65
5. boiling point (ºc,normal pressure): undetermined
6. boiling point (ºc, kpa): undetermined
7. refractive index: undetermined
8. flashpoint (ºc): undetermined
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
15. critical pressure (kpa): undetermined
16. oil and water (octanol/log value of the partition coefficient for water: undetermined
17. explosion upper limit (%,v/v): undetermined
18. 7. number of heavy atoms:21
8. surface charge ：0
9. complexity ：522
10. number of isotope atoms:0
11. determine the number of atomic stereocenters:0
12. uncertain number of atomic stereocenters:0
13. determine the number of stereocenters of chemical bonds:4
14. uncertain number of chemical bond stereocenters:0
15. number of covalent bond units: 1
properties and stability
none
storage method
none
synthesis method
vitamina after being catalyzed by alcohol dehydrogenase and coenzymes i and ii, cis and trans retinal are formed.
purpose
β-carotene intermediates .
ial”>4
14. uncertain number of chemical bond stereocenters:0
15. number of covalent bond units: 1
properties and stability
none
storage method
none
synthesis method
vitamina after being catalyzed by alcohol dehydrogenase and coenzymes i and ii, cis and trans retinal are formed.
purpose
β-carotene intermediates .
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