2-ISOBUTYL-3-METHYLPYRAZINE

CAS No.：13925-06-9

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.

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2-ISOBUTYL-3-METHYLPYRAZINE Basic information

Product Name:	2-ISOBUTYL-3-METHYLPYRAZINE
Synonyms:	FEMA NUMBER 3133;FEMA 3133;2-ISOBUTYL-3-METHYLPYRAZINE;2-METHYL-3-ISOBUTYLPYRAZINE;2-methyl-3-(2-methylpropyl)-pyrazin;2-methyl-3-(2-methylpropyl)-Pyrazine;3-[[4-(3-formylphenoxy)-3,4-dimethyl-1-cyclohexa-1,5-dienyl]oxy]benzaldehyde;2-Isobutyl-3-isopropyl pyrazine
CAS:	13925-06-9
MF:	C9H14N2
MW:	150.22
EINECS:	237-693-6
Product Categories:	Mono- & Polyalkylpyrazines;Pyrazines;Alphabetical Listings;Flavors and Fragrances;I-L
Mol File:	13925-06-9.mol

2-ISOBUTYL-3-METHYLPYRAZINE Chemical Properties

Melting point	74 °C
Boiling point	199 °C(lit.)
density	0.942 g/mL at 25 °C(lit.)
refractive index	n20/D 1.492(lit.)
FEMA	3133 \| 2-ISOBUTYL-3-METHYLPYRAZINE
Fp	180 °F
storage temp.	Sealed in dry,Room Temperature
form	clear liquid
pka	1.88±0.10(Predicted)
color	Colorless to Orange to Green
JECFA Number	773
CAS DataBase Reference	13925-06-9(CAS DataBase Reference)
EPA Substance Registry System	Pyrazine, 2-methyl-3-(2-methylpropyl)- (13925-06-9)

Safety Information

Safety Statements	24/25
WGK Germany	3
HS Code	29349990

MSDS Information

Provider	Language
SigmaAldrich	English

2-ISOBUTYL-3-METHYLPYRAZINE Usage And Synthesis

Description	Synthesis: By condensation of ethylenediamine with 5-methyl- 2,3-hexanedione.
Chemical Properties	2-Isobutyl-3-methylpyrazine has extremely powerful herbaceous green earthy notes. Diluted water solutions exhibit a characteristic odor of green bell peppers
Chemical Properties	Liquid
Occurrence	Reported present in coffee, potato products, cooked beef, fried cured pork and roasted peanuts.
Preparation	By condensation of ethylenediamine with 5-methyl-2,3-hexandione
Aroma threshold values	Detection: 13 to 35 ppb
Taste threshold values	Taste characteristics at 35 ppm: herbaceous, green, earthy notes.

2-ISOBUTYL-3-METHYLPYRAZINE Preparation Products And Raw materials

Preparation Products

1,3-OCTADIENE-->TRANS-2-HEPTEN-1-OL-->1-Octen-3-ol-->2,5-Dimethyl pyrazine

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