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2,3-dihydro-5,6-dimethylpyrazine

2,3-dihydro-5,6-dimethylpyrazine structure

CAS No.: 15986-92-2

Chemical Name:: 2,3-dihydro-5,6-dimethylpyrazine

Synonyms: DHP-1;DHDMP;Einecs 240-122-3;5,6-Dimethyl-2,3-dihydropyrazine;5,6-Dihydro-2,3-dimethylpyrazine;2,3-Dimethyl-5,6-dihydropyrazine;2,3-dihydro-5,6-dimethylpyrazine;Pyrazine, 2,3-dihydro-5,6-dimethyl-

CBNumber:: CB3924723

Molecular Formula:: C6H10N2

Molecular Weight:: 110.16

MDL Number:

MOL File:: 15986-92-2.mol

MSDS File:: SDS

Last updated:2026-05-28 02:22:26

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2,3-dihydro-5,6-dimethylpyrazine Properties

Boiling point	60-63 °C(Press: 18 Torr)
Density	1.02±0.1 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
pka	6.73±0.20(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H302
Precautionary statements	P280-P305+P351+P338

2,3-dihydro-5,6-dimethylpyrazine price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
aablocks	AA001REB	5,6-Dimethyl-2,3-Dihydropyrazine 95.00%	15986-92-2	1g	$293	2026-05-28	Buy
aablocks	AA001REB	5,6-Dimethyl-2,3-Dihydropyrazine 95.00%	15986-92-2	5g	$804	2026-05-28	Buy
ACHEMBLOCK	U105726	2,3-Dihydro-5,6-dimethyl-pyrazine 97.00%	15986-92-2	250MG	$290	2026-05-27	Buy
ACHEMBLOCK	U105726	2,3-Dihydro-5,6-dimethyl-pyrazine 97.00%	15986-92-2	1G	$895	2026-05-27	Buy
ACHEMBLOCK	U105726	2,3-Dihydro-5,6-dimethyl-pyrazine 97.00%	15986-92-2	5G	$3580	2026-05-27	Buy

Product number	Packaging	Price	Buy
AA001REB	1g	$293	Buy
AA001REB	5g	$804	Buy
U105726	250MG	$290	Buy
U105726	1G	$895	Buy
U105726	5G	$3580	Buy

2,3-dihydro-5,6-dimethylpyrazine Chemical Properties, Uses, Production

Uses

5,6-Dimethyl-2,3-dihydropyrazine can be used in studies of perfume composition comprising fragrance modulator compounds and silicic acid esters for increasing and prolonging the intensity of fragrance.

Synthesis

107-15-3

431-03-8

15986-92-2

Over a period of 2 hours, 2,3-butanedione (18.6 g, 216 mmol, dissolved in 200 mL of anhydrous ether) was added slowly and dropwise to a solution of ethylenediamine (13 g, 216 mmol) in anhydrous ether (600 mL). The reaction mixture was stirred continuously for 3 hours at room temperature. Subsequently, the clarified reaction solution was concentrated under reduced pressure to give a brown oily crude product. Purification of the crude product by reduced pressure distillation resulted in 16.6 g (70% yield) of the target compound 5,6-dimethyl-2,3-dihydropyrazine (Formula F) as a clarified yellow oil. The boiling point was 60 °C/16 mm Hg. Nuclear magnetic resonance hydrogen spectroscopy (NMR, CD3) data were as follows: δ 3.3 (broad single peak, 4H), 2.1 (single peak, 6H) ppm.

References

[1] Transition Metal Chemistry, 2013, vol. 38, # 1, p. 31 - 36
[2] Chemical and Pharmaceutical Bulletin, 2010, vol. 58, # 6, p. 825 - 828
[3] Patent: WO2005/79769, 2005, A2. Location in patent: Page/Page column 91
[4] Synthesis (Germany), 2013, vol. 45, # 11, p. 1546 - 1552
[5] Patent: EP1254899, 2002, A2. Location in patent: Page 46

2,3-dihydro-5,6-dimethylpyrazine Preparation Products And Raw materials

Raw materials

Ethylenediamine 2,3-Butanedione

Preparation Products

2,3-dihydro-5,6-dimethylpyrazine Suppliers

Global Suppliers ( 26)

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai JingRon Chemical Technology Co., Ltd.	021-60546673 13701861782;	kuanga111@sina.com	China	881	58
Aikon International Limited	025-66113011 19370895928	qzhang@aikonchem.com	China	15390	58
Lanzhou Kangyuxin Biotechnology Co., Ltd.	0943-8293106	sales@kyxpharma.com	China	3565	58
Hefei Hirisun Pharmatech Co., Ltd	+8615056975894	shawn@hirisunpharm.com	CHINA	9897	58
Career Henan Chemica Co	+86-0371-86658258 +86-13203830695	laboratory@coreychem.com	China	30203	58
Shaanxi Dideu Medichem Co. Ltd	+86-17392712779	1097@dideu.com	China	3989	58
Energy Chemical	400-0056266	marketing1@energy-chemical.com	China	44927	58
Hubei yongkuo Technology Co., Ltd	027-59223108 15972152991	1248580099@qq.com	China	9909	58
Hubei Qifei Pharmaceutical Chemical Co., Ltd	027-59322506 18071128681	1438082200@qq.com	China	9554	58
Hangzhou Taorui Biotechnology Co., Ltd	QQ1259737804 15268198094	sales@torreybio.com	China	4131	58

Supplier	Advantage
Shanghai JingRon Chemical Technology Co., Ltd.	58
Aikon International Limited	58
Lanzhou Kangyuxin Biotechnology Co., Ltd.	58
Hefei Hirisun Pharmatech Co., Ltd	58
Career Henan Chemica Co	58
Shaanxi Dideu Medichem Co. Ltd	58
Energy Chemical	58
Hubei yongkuo Technology Co., Ltd	58
Hubei Qifei Pharmaceutical Chemical Co., Ltd	58
Hangzhou Taorui Biotechnology Co., Ltd	58

View Latest Price from 2,3-dihydro-5,6-dimethylpyrazine manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2026-06-30	2,3-dihydro-5,6-dimethylpyrazine 15986-92-2		1KG	95.0%	10000KGS	Shaanxi Dideu New Materials Co. Ltd
	2025-12-24	2,3-dihydro-5,6-dimethylpyrazine 15986-92-2		1KG	98.0%	10	Shaanxi Dideu Medichem Co. Ltd

2,3-dihydro-5,6-dimethylpyrazine
15986-92-2
95.0%
Shaanxi Dideu New Materials Co. Ltd

2,3-dihydro-5,6-dimethylpyrazine
15986-92-2
$0.10
98.0%
Shaanxi Dideu Medichem Co. Ltd

15986-92-2 (2,3-dihydro-5,6-dimethylpyrazine) Related Search:

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2,3-dihydro-5,6-dimethylpyrazine

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2,3-dihydro-5,6-dimethylpyrazine 2,3-Dimethyl-5,6-dihydropyrazine 5,6-Dihydro-2,3-dimethylpyrazine 5,6-Dimethyl-2,3-dihydropyrazine DHDMP DHP-1 Einecs 240-122-3 Pyrazine, 2,3-dihydro-5,6-dimethyl- 15986-92-2