Introduction：Basic information about 5,6,7,8-Tetrahydroquinoxaline CAS 34413-35-9, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Table of Contents
- 1. 5,6,7,8-Tetrahydroquinoxaline Basic information
- 2. 5,6,7,8-Tetrahydroquinoxaline Chemical Properties
- 3. Safety Information
- 4. 5,6,7,8-Tetrahydroquinoxaline Usage And Synthesis
- 5. 5,6,7,8-Tetrahydroquinoxaline Preparation Products And Raw materials
5,6,7,8-Tetrahydroquinoxaline Basic information
| Product Name: | 5,6,7,8-Tetrahydroquinoxaline |
| Synonyms: | Quinoxaline, 5,6,7,8-tetrahydro-;FEMA 3321;FEMA NUMBER 3321;CYCLOHEXAPYRAZINE;5,6,7,8-tetrahydro-quinoxalin;5,6,7,8-TETRAHYDROQUINOXALINE;5,6,7,8-Tetrahydroquioxaline;5 6 7 8-TETRAHYDROQUINOXALINE 97+% |
| CAS: | 34413-35-9 |
| MF: | C8H10N2 |
| MW: | 134.18 |
| EINECS: | 252-002-8 |
| Product Categories: | Pyrazine compounds;Flavor |
| Mol File: | 34413-35-9.mol |
|
5,6,7,8-Tetrahydroquinoxaline Chemical Properties
| Boiling point | 85 °C3 mm Hg(lit.) |
| density | 1.061 g/mL at 25 °C(lit.) |
| FEMA | 3321 | 5,6,7,8-TETRAHYDROQUINOXALINE |
| refractive index | n20/D 1.542(lit.) |
| Fp | 195 °F |
| storage temp. | Sealed in dry,Room Temperature |
| pka | 2.24±0.20(Predicted) |
| form | clear liquid |
| color | Colorless to Yellow to Green |
| Specific Gravity | 1.1334 |
| Odor | at 0.10 % in dipropylene glycol. musty nut roasted bean cereal corn chip cheese |
| Odor Type | nutty |
| biological source | synthetic |
| Water Solubility | slightly soluble |
| JECFA Number | 952 |
| BRN | 957053 |
| Major Application | flavors and fragrances |
| InChI | 1S/C8H10N2/c1-2-4-8-7(3-1)9-5-6-10-8/h5-6H,1-4H2 |
| InChIKey | XCZPDOCRSYZOBI-UHFFFAOYSA-N |
| SMILES | C1CCc2nccnc2C1 |
| LogP | 1.41 |
| CAS DataBase Reference | 34413-35-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 5,6,7,8-Tetrahydroquinoxaline(34413-35-9) |
| EPA Substance Registry System | Quinoxaline, 5,6,7,8-tetrahydro- (34413-35-9) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-24/25-36 |
| WGK Germany | 3 |
| TSCA | TSCA listed |
| HS Code | 29339900 |
| Storage Class | 10 - Combustible liquids |
| Hazard Classifications | Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
5,6,7,8-Tetrahydroquinoxaline Usage And Synthesis
| Chemical Properties | CLEAR VERY SLIGHTLY YELLOW LIQUID |
| Occurrence | Reported found in cocoa, coffee, wheat bread, fried cured pork, pork liver, cocoa, coffee, roasted filbert, roasted peanut and roasted sesame seeds. |
| Uses | flavors and fragrances |
| Preparation | By condensation of alicyclic α, β-diketone with an α, β-diamine; condensation of an acyclic α, β-diamine with an α, β-dicarbonyl. |
| Definition | ChEBI: 5,6,7,8-Tetrahydroquinoxaline is a member of pyrazines. |
| Aroma threshold values | Aroma characteristics at 1.0%: nutty roasted corn chip, peanut, hazelnut, toasted coconut, coffee, graham cracker, popcorn, toasted and roasted grain. |
| Taste threshold values | Taste characteristics from 5 to 10 ppm: roasted nutty, corn and popcorn, toasted grain and corn chip, taco fatty, basmati rice, hazelnut and roasted coffee-like. Taste characteristics at 10 ppm: nutty, musty, corn taco and popcorn-like. |
5,6,7,8-Tetrahydroquinoxaline Preparation Products And Raw materials
| Raw materials | Ethylenediamine |
| Preparation Products | 6-Bromoquinoxaline-->5,8-DibroMoquinoxaline |
