Toluene diisocyanate manufacturer Knowledge 2,5-Dimethylpyrazine 2,5-Dimethylpyrazine

2,5-Dimethylpyrazine 2,5-Dimethylpyrazine

2,5-dimethylpyrazine structural formula

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. Polarizability10-24cm3):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. Polarizability10-24cm3):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.

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