ChemicalBook >> CAS DataBase List >>5,6,7,8-Tetrahydroquinoxaline

5,6,7,8-Tetrahydroquinoxaline

5,6,7,8-Tetrahydroquinoxaline structure

CAS No.: 34413-35-9

Chemical Name:: 5,6,7,8-Tetrahydroquinoxaline

Synonyms: TETRAHYDROQUINOXALINE;CYCLOHEXAPYRAZINE;FEMA 3321;FEMA NUMBER 3321;nutty quinoxaline;5,6,7,8-Tetrahydroquioxaline;5,6,7,8-TETRAHYDROQUINOXALINE;5,6,7,8-tetrahydro-quinoxalin;5.6.7.8-Tetrohydro quinoxaline;Quinoxaline, 5,6,7,8-tetrahydro-

CBNumber:: CB7364693

Molecular Formula:: C8H10N2

Molecular Weight:: 134.18

MDL Number:: MFCD00038078

MOL File:: 34413-35-9.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 05:40:40

Request For Quotation

5,6,7,8-Tetrahydroquinoxaline Properties

Boiling point	85 °C3 mm Hg(lit.)
Density	1.061 g/mL at 25 °C(lit.)
refractive index	n20/D 1.542(lit.)
FEMA	3321 \| 5,6,7,8-TETRAHYDROQUINOXALINE
FLAVIS Number	14.015 \| 5,6,7,8-Tetrahydroquinoxaline
Flash point	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)
Substances Added to Food (formerly EAFUS)	5,6,7,8-TETRAHYDROQUINOXALINE
EWG's Food Scores	1
FDA UNII	M153CJ9RA0
NIST Chemistry Reference	5,6,7,8-Tetrahydroquinoxaline(34413-35-9)
EPA Substance Registry System	Quinoxaline, 5,6,7,8-tetrahydro- (34413-35-9)
UNSPSC Code	12164502
NACRES	NA.21

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P264-P271-P280-P302+P352-P305+P351+P338

target organs

Respiratory system

Hazard Codes

Risk Statements

36/37/38

Safety Statements

26-24/25-36

WGK Germany

TSCA

TSCA listed

HS Code

29339900

Storage Class

10 - Combustible liquids

Hazard Classifications

Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

NFPA 704

	2
2		0

5,6,7,8-Tetrahydroquinoxaline price More Price(48)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	W332100	5,6,7,8-Tetrahydroquinoxaline ≥97%, FG	34413-35-9	1 each	$55.9	2026-04-30	Buy
Sigma-Aldrich	W332100	5,6,7,8-Tetrahydroquinoxaline ≥97%, FG	34413-35-9	25g	$84.4	2026-04-30	Buy
Sigma-Aldrich	W332100	5,6,7,8-Tetrahydroquinoxaline ≥97%, FG	34413-35-9	100g	$251	2026-04-30	Buy
Sigma-Aldrich	W332100	5,6,7,8-Tetrahydroquinoxaline ≥97%, FG	34413-35-9	1kg	$1270	2026-04-30	Buy
Sigma-Aldrich	W332100	5,6,7,8-Tetrahydroquinoxaline ≥97%, FG	34413-35-9	1 unit	$54.6	2025-07-31	Buy

Product number	Packaging	Price	Buy
W332100	1 each	$55.9	Buy
W332100	25g	$84.4	Buy
W332100	100g	$251	Buy
W332100	1kg	$1270	Buy
W332100	1 unit	$54.6	Buy

5,6,7,8-Tetrahydroquinoxaline Chemical Properties, Uses, Production

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 synthesis

Synthesis of 5,6,7,8-Tetrahydroquinoxaline from Quinoxaline

5,6,7,8-Tetrahydroquinoxaline Preparation Products And Raw materials

Raw materials

Ethylenediamine Diketone

Preparation Products

6-Bromoquinoxaline 5,8-DibroMoquinoxaline

5,6,7,8-Tetrahydroquinoxaline Suppliers

Global Suppliers ( 330)

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
future industrial shanghai co., ltd	400-0066400 13621662912	sales@jonln.com	China	1989	65
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Capot Chemical Co., Ltd	+86 (0) 571 85 58 67 18		China	18187	66
Beijing Ouhe Technology Co., Ltd	13552068683 13522913783	2355560935@qq.com	China	11777	60
JinYan Chemicals(ShangHai) Co.,Ltd.	13817811078	sales@jingyan-chemical.com	China	9963	60
Adamas Reagent, Ltd.	400-6009262 15618770481	yhx@titansci.com	China	14098	59

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
future industrial shanghai co., ltd	65
Alfa Aesar	84
TCI (Shanghai) Development Co., Ltd.	81
Energy Chemical	61
Capot Chemical Co., Ltd	66
Beijing Ouhe Technology Co., Ltd	60
JinYan Chemicals(ShangHai) Co.,Ltd.	60
Adamas Reagent, Ltd.	59

View Latest Price from 5,6,7,8-Tetrahydroquinoxaline manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-09-02	5,6,7,8-Tetrahydroquinoxaline 34413-35-9	$1.10-32.00	1kg	99%		Henan Fengda Chemical Co., Ltd
2026-06-30	5,6,7,8-Tetrahydroquinoxaline 34413-35-9		1KG	98.0%	10000KGS	Shaanxi Dideu New Materials Co. Ltd
2026-05-28	5, 6, 7, 8-Tetrahydroquinoxaline 34413-35-9	$2.00-5.00	1KG	99%	10000kg	Hebei Chuanghai Biotechnology Co,.LTD

5,6,7,8-Tetrahydroquinoxaline
34413-35-9
$1.10-32.00
99%
Henan Fengda Chemical Co., Ltd

5,6,7,8-Tetrahydroquinoxaline
34413-35-9
98.0%
Shaanxi Dideu New Materials Co. Ltd

5, 6, 7, 8-Tetrahydroquinoxaline
34413-35-9
$2.00-5.00
99%
Hebei Chuanghai Biotechnology Co,.LTD

5,6,7,8-Tetrahydroquinoxaline Spectrum

5,6,7,8-Tetrahydroquinoxaline(34413-35-9)MS 5,6,7,8-Tetrahydroquinoxaline(34413-35-9)¹HNMR 5,6,7,8-Tetrahydroquinoxaline(34413-35-9)¹³CNMR 5,6,7,8-Tetrahydroquinoxaline(34413-35-9)IR1 5,6,7,8-Tetrahydroquinoxaline(34413-35-9)Raman

34413-35-9 (5,6,7,8-Tetrahydroquinoxaline) Related Search:

5,6,7,8-Tetrahydroquinoxaline 6-Chloro-2,3-dioxo-1,2,3,4-tetrahydroquinoxaline 6-Chloro-2,3-dioxo-1,2,3,4-tetrahydroquinoxaline, 97 5,8-dimethyl-1,2,3,4-tetrahydroquinoxaline 7-METHYL-3-OXO-1,2,3,4-TETRAHYDROQUINOXALINE-6-CARBONITRILE

5-NITRO-1,2,3,4-TETRAHYDROQUINOXALINE 2-PROPYL-1,2,3,4-TETRAHYDROQUINOXALINE 2-OXO-1,2,3,4-TETRAHYDROQUINOXALINE-6-CARBONITRILE (2R)-1,2,3,4-TETRAHYDROQUINOXALINE-2-CARBOXYLIC ACID 2-METHYL-1-NITROSO-1,2,3,4-TETRAHYDROQUINOXALINE

1,4-Dimethyl-1,2,3,4-tetrahydroquinoxaline-6-carbonitrile 2,3-DIOXO-1,2,3,4-TETRAHYDROQUINOXALINE-6-CARBONITRILE 3-Oxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylic acid 2-Oxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylic acid 6-Bromo-1,4-dimethyl-1,2,3,4-tetrahydroquinoxaline

1-Ethyl-1,2,3,4-tetrahydroquinoxaline (1,4-Dimethyl-1,2,3,4-tetrahydroquinoxalin-6-yl)methylamine 1,4-Dimethyl-1,2,3,4-tetrahydroquinoxaline-6-carboxylic acid, 97

1of4

Quinoxaline, 5,6,7,8-tetrahydro- 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+% 5,6,7,8-Tetrahydroquinoxaline,99% 5,6,7,8-TETRAHYDROQUINOXALINE FEMA NO.3321 Cyclohexapyrazine, Tetrahydroquinoxaline 5,6,7,8-Tetrahydroquinoxaline ,98% 5,6,7,8-Tetrahydroquinoxaline >=98.0% 5,6,7,8-Tetrahydroquinoxaline34413-35-9 5,6,7,8- fourhydrogenquinoxaline 5.6.7.8-Tetrohydro quinoxaline 5,6,7,8-Tetrahydroquinoxaline USP/EP/BP nutty quinoxaline 5,6,7,8-Tetrahydroquinoxaline (Standard) FEMA 3321 TETRAHYDROQUINOXALINE 34413-35-9 C8H10N2 Building Blocks Heterocyclic Building Blocks Pyrazines Pyrazine compounds Flavor