| Identification | More | [Name]
2-METHYLTHIO-3,5-METHYLPYRAZINE | [CAS]
67952-65-2 | [Synonyms]
2-METHYLTHIO-3,5-METHYLPYRAZINE
FEMA 3208
methyl(methylthio)-pyrazin
2-Methylthio-3(6)-methyl-pyrazine
(METHYLTHIO)METHYLPYRAZINE 98+% MIXTU&
Pyrazine, methyl(methylthio)-
2-Methyl-3(or5or6)-methylthiopyrazine
Methyl-(methylthio)-pyrazine, isomer mixture | [EINECS(EC#)]
267-918-3 | [Molecular Formula]
C7H10N2S | [MDL Number]
MFCD00016740 | [Molecular Weight]
154.23 | [MOL File]
67952-65-2.mol |
| Chemical Properties | Back Directory | [density ]
1.145 g/mL at 25 °C(lit.)
| [FEMA ]
3208 | [refractive index ]
n20/D 1.583(lit.)
| [Fp ]
193 °F
| [Odor]
at 0.10 % in dipropylene glycol. nutty earthy peanut musty coffee vegetable | [biological source]
synthetic | [Odor Type]
nutty | [JECFA Number]
797 | [Major Application]
flavors and fragrances | [InChI]
1S/2C6H8N2S/c1-5-3-8-6(9-2)4-7-5;1-5-6(9-2)8-4-3-7-5/h2*3-4H,1-2H3 | [InChIKey]
WVLCKAWPCLTOOS-UHFFFAOYSA-N | [SMILES]
CSc1cnc(C)cn1.CSc2nccnc2C | [LogP]
0.06 | [CAS DataBase Reference]
67952-65-2(CAS DataBase Reference) | [EPA Substance Registry System]
Pyrazine, methyl(methylthio)- (67952-65-2) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [TSCA ]
TSCA listed | [Storage Class]
10 - Combustible liquids | [Hazard Classifications]
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
| Hazard Information | Back Directory | [Description]
2-Methyl-(3 or 5 or 6)-(methylthio)pyrazine (mixture of isomers)
is like roasted almonds, hazelnuts. This may be prepared from
2-methylchloropyrazine; a mixture of 2-methyl-3-methylthiopyrazine,
2-methyl-5-methylthiopyrazine, and 2-methyl-6-methylthiopyrazine
is obtained. | [Chemical Properties]
2-Methyl-3(or 5 or 6)-methylthiopyrazine has a roasted almond, hazelnut and vegetable aroma. | [Preparation]
From 2-methylchloropyrazine; a mixture of 2-methyl-3-methylthiopyrazine, 2-methyl-5-methylthiopyrazine, and
2-methyl-6-methylthiopyrazine is obtained. | [Aroma threshold values]
Detection: 4 to 60 ppb. Aroma characteristics at 1.0%: toasted popcorn, roasted almond, hazelnut, peanut
and cashewnutty, with a caramellic and corn-chip nuance. | [Taste threshold values]
Taste characteristics at 3 to 10 ppm: nutty, roasted and earthy with coffee and corn nuances, peanut and
pecan nutty, popcorn and corn chip–like with a burnt musty nuance.
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