5-METHYLQUINOXALINE
Synonym(s):Nutty oxaline
- CAS NO.：13708-12-8
- Empirical Formula: C9H8N2
- Molecular Weight: 144.17
- MDL number: MFCD00012335
- EINECS: 237-246-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:13:27
What is 5-METHYLQUINOXALINE?
Description
5-Methylquinoxaline has a burnt, roasted, nutty, roasted com, coffee odor.
Chemical properties
Amber liquid
Chemical properties
5-Methylquinoxaline has a burnt, roasted, nutty, roasted corn, coffee odor
Occurrence
Reported found in coffee and roasted almonds
The Uses of 5-METHYLQUINOXALINE
5-Methylquinoxaline was used in the synthesis of 1,12-diphenyl-5-methyl-1,12,12a,12b-tetrahydrobis[1,2,4]triazolo[4,3-a:3′,4′-c]quinoxaline bis-cycloadducts.
Definition
ChEBI: A quinoxaline derivative in which the quinoxaline (1,4-naphthyridine) skeleton is substituted at C-5 with a methyl group.
Taste threshold values
Taste characteristics at 2 ppm: nutty, roasted, peanut and pyrazine-like with yeasty, corn-chip nuance.
General Description
5-Methylquinoxaline has been identified as one of the key volatile aroma compounds in roasted almonds{170] and roasted coffee.
Properties of 5-METHYLQUINOXALINE
| Melting point: | 20-21 °C (lit.) |
| Boiling point: | 120 °C/15 mmHg (lit.) |
| Density | 1.125 g/mL at 25 °C |
| refractive index | n |
| FEMA | 3203 | 5-METHYLQUINOXALINE |
| Flash point: | >230 °F |
| storage temp. | Sealed in dry,Room Temperature |
| form | neat |
| pka | 1.40±0.30(Predicted) |
| Specific Gravity | 1.112 |
| color | Light yellow to Yellow to Orange |
| Odor | at 0.10 % in dipropylene glycol. toasted roasted corn nutty coffee burnt |
| JECFA Number | 798 |
| CAS DataBase Reference | 13708-12-8(CAS DataBase Reference) |
| EPA Substance Registry System | Quinoxaline, 5-methyl- (13708-12-8) |
Safety information for 5-METHYLQUINOXALINE
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 5-METHYLQUINOXALINE
| InChIKey | CQLOYHZZZCWHSG-UHFFFAOYSA-N |
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