ChemicalBook CAS DataBase List 24683-00-9

24683-00-9

Name	2-Methoxy-3-isobutyl pyrazine
CAS	24683-00-9
EINECS(EC#)	246-402-1
Molecular Formula	C9H14N2O
MDL Number	MFCD00006128
Molecular Weight	166.22
MOL File	24683-00-9.mol

Synonyms

2-ISOBUTYL-3(5/6)-METHOXYPYRAZINE 2-ISOBUTYL-3-METHOXYPYRAZINE 2-METHOXY-3-ISOBUTYLPYRAZINE 3-ISOBUTYL-2-METHOXYPYRAZINE FEMA 3132 FEMA NUMBER 3132 2-methoxy-3-(2-methyl-propyl) pyrazine 2-methoxy-3-(2-methylpropyl)-pyrazin 2-methoxy-3-(2-methylpropyl)-Pyrazine 3-methoxy-2-isobutylpyrazine Pyrazine, 2-(2-methylpropyl)-3-methoxy Pyrazine, 2-isobutyl-3-methoxy Pyrazine, 2-methoxy-3-(2-methylpropyl)- Pyrazine, 3-methoxy-2-(2-methylpropyl) 2-methoxy-3-iosobutylpyrazine 2-ISOBUTYL-3-METHOXYPYRAZINE 99+% Femano.3132 2-Isobutyl-3-methoxypyrazine, tech., cont. 20% 2-isobutyl-6-methoxypyrazine, 80% isobutylmethoxypyrazine,2-isobutyl-3-methoxypyrazine 2-isobutyl-3-methoxypyrazine solution

Chemical Properties

Appearance	CLEAR COLOURLESS LIQUID
Boiling point	294.44°C (rough estimate)
density	0.99 g/mL at 25 °C(lit.)
FEMA	3132
refractive index	n20/D 1.49(lit.)
Fp	176 °F
storage temp.	room temp
form	Liquid
pka	0.80±0.10(Predicted)
color	Clear colorless
Specific Gravity	0.995
Odor	green-pepper odor FCT 2000
biological source	synthetic
Odor Type	green
JECFA Number	792
Cosmetics Ingredients Functions	PERFUMING
InChI	1S/C9H14N2O/c1-7(2)6-8-9(12-3)11-5-4-10-8/h4-5,7H,6H2,1-3H3
InChIKey	UXFSPRAGHGMRSQ-UHFFFAOYSA-N
SMILES	COc1nccnc1CC(C)C
LogP	2.62
CAS DataBase Reference	24683-00-9(CAS DataBase Reference)
NIST Chemistry Reference	Pyrazine, 2-methoxy-3-(2-methylpropyl)-(24683-00-9)
EPA Substance Registry System	24683-00-9(EPA Substance)

Safety Data

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H315-H319-H335
Precautionary statements	P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes	Xi,T,F
Risk Statements	R36/37/38:Irritating to eyes, respiratory system and skin . R39/23/24/25:Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed . R23/24/25:Toxic by inhalation, in contact with skin and if swallowed . R11:Highly Flammable. less more
Safety Statements	S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36:Wear suitable protective clothing . S24/25:Avoid contact with skin and eyes . S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . S36/37:Wear suitable protective clothing and gloves . S16:Keep away from sources of ignition-No smoking . less more
RIDADR	UN 1230 3/PG 2
WGK Germany	3
TSCA	Yes
HS Code	29339900
Storage Class	10 - Combustible liquids
Hazard Classifications	Eye Irrit. 2 Skin Irrit. 2 STOT SE 3

Raw materials And Preparation Products

Hazard Information

Description

2-Isobutyl-3-methoxypyrazine has an extremely powerful odor with a reported threshold value of 2 parts per trillion in water. Diluted water solutions exhibit a characteristic odor of green bell peppers. May be synthesized by condensation of leucine amide with glyoxal, followed by methylation with CH2H2.

Chemical Properties

2-Isobutyl-3-methoxypyrazine has a green bell pepper, green pea odor. Diluted water solutions of this compound exhibit a characteristic odor of green bell peppers.

Chemical Properties

CLEAR COLOURLESS LIQUID

Occurrence

Reported present in green bell pepper, coffee, galbanum oil, potato products, peas, grapes, lettuce, sherry, white wine, cocoa, beans, beetroot, passion fruit and okra.

Uses

2-Isobutyl-3-methoxypyrazine has been employed as a model odorant molecule during an electrochemical assay for the detection of odorant molecules based on a rat odorant-binding protein (rOBP3).

Preparation

By condensation of leucine amide with glyoxal followed by methylation with CH2H2

Aroma threshold values

Detection: 2 ppt to 10 ppb

General Description

2-Isobutyl-3-methoxypyrazine, a potent bell-pepper odourant, has been found to bind to cow olfactory mucosa homogenate.

storage

Store at -20°C

Material Safety Data Sheet(MSDS)

Spectrum Detail

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