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 |  | 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 |  | 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) |  
  
| Hazard Codes  | Xi |  | Risk Statements  | 36/37/38 |  | Safety Statements  | 26-24/25-36 |  | WGK Germany  | 3 |  | TSCA  | Yes |  | HS Code  | 29339900 |  
  
 |  | 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. |  | Definition | ChEBI: 5,6,7,8-Tetrahydroquinoxaline is a member of pyrazines. |  | 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. |  | 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 |  
  
 
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