2,5-dimethylpyrazine 2,5-dimethylpyrazine
structural formula
| business number | 03gh |
|---|---|
| molecular formula | c6h8n2 |
| molecular weight | 108.14 |
| label |
2,5-dimethyl-p-diazepine, 2,5-dimethyl-1,4-diazine, 2,5-dimethyl-pyrazin, food additives, flavor enhancer |
numbering system
cas number:123-32-0
mdl number:mfcd00006147
einecs number:204-618-3
rtecs number:uq2800000
brn number:107052
pubchem number:24901599
physical property data
1. character: colorless to slightly yellow liquid
2. melting point:15℃
3. boiling point:155℃
4. solubility: soluble in water, ethanol , diethyl ether. can evaporate with water vapor
toxicological data
1, acute toxicity: rat oral ld50: 1020mg/kg
mouse transperitoneal membrane ld50: 1350mg/kg
2, mutagenicity: yeast mutation test system: 33800mg/l
hamster ovary cell analysis and testing system: 2500mg/l
ecological data
none yet
molecular structure data
5. molecular property data:
1. molar refractive index: 32.08
2. molar volume (m3/mol）：108.4
3. isotonic specific volume (90.2k):270.8
4. surface tension (dyne/cm):38.9
5. polarizability（10-24cm3):12.71
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): none
2. number of hydrogen bond donors: 0
3. number of hydrogen bond acceptors: 2
4. number of rotatable chemical bonds: 0
5. number of tautomers: none
6. topological molecule polar surface area 25.8
7. number of heavy atoms: 8
8. surface charge: 0
9. complexity: 62.9
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 chemical bond stereocenters: 0
14. number of uncertain chemical bond stereocenters: 0
15. number of covalent bond units: 1
properties and stability
1. properties: colorless to slightly yellow liquid. can evaporate with water vapor.
storage method
none yet
synthesis method
2. preparation method: in the presence of ammonium salt, from acrolein and ammonia in glycerin obtained by heating reaction.
purpose
3. uses: this product has a pungent aroma of fried flowers and chocolate and cream. it is our countrygb- 2760-863. isotonic specific volume (90.2k):270.8
4. surface tension (dyne/cm):38.9
5. polarizability（10-24cm3):12.71
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): none
2. number of hydrogen bond donors: 0
3. number of hydrogen bond acceptors: 2
4. number of rotatable chemical bonds: 0
5. number of tautomers: none
6. topological molecule polar surface area 25.8
7. number of heavy atoms: 8
8. surface charge: 0
9. complexity: 62.9
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 chemical bond stereocenters: 0
14. number of uncertain chemical bond stereocenters: 0
15. number of covalent bond units: 1
properties and stability
1. properties: colorless to slightly yellow liquid. can evaporate with water vapor.
storage method
none yet
synthesis method
2. preparation method: in the presence of ammonium salt, from acrolein and ammonia in glycerin obtained by heating reaction.
purpose
3. uses: this product has a pungent aroma of fried flowers and chocolate and cream. it is our countrygb- 2760-86stipulated as permitted of spices. mainly used to prepare flavors such as cocoa, coffee, meat, nuts and potatoes. it can also be used in dye and pharmaceutical industries.
nt-family: ‘times new roman’; mso-hansi-font-family: ‘times new roman'”>specified as permitted spices. mainly used in the preparation of flavors such as cocoa, coffee, meat, nuts and potatoes. it can also be used in dye and pharmaceutical industries.
