| 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;5,6,7,8-tetrahydro-quinoxalin;5,6,7,8-TETRAHYDROQUINOXALINE;5,6,7,8-Tetrahydroquioxaline;5 6 7 8-TETRAHYDROQUINOXALINE 97+%;5,6,7,8-Tetrahydroquinoxaline,99% |
| CAS: | 34413-35-9 |
| MF: | C8H10N2 |
| MW: | 134.18 |
| EINECS: | 252-002-8 |
| Product Categories: | Pyrazine compounds;Flavor |
| Mol File: | 34413-35-9.mol |
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| 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 |
| Water Solubility | slightly soluble |
| JECFA Number | 952 |
| BRN | 957053 |
| 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 | Yes |
| HS Code | 29339900 |
| Provider | Language |
|---|---|
| 5,6,7,8-Tetrahydroquinoxaline | English |
| SigmaAldrich | English |
| ACROS | English |
| ALFA | English |
| 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. |
| 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 |