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W320307

Sigma-Aldrich

5-Methylquinoxaline

≥99%, FG

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Synonym(s):
Nutty oxaline
Empirical Formula (Hill Notation):
C9H8N2
CAS Number:
Molecular Weight:
144.17
FEMA Number:
3203
EC Number:
Council of Europe no.:
2271
MDL number:
PubChem Substance ID:
Flavis number:
14.028
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Fragrance grade
Halal
Kosher

Agency

follows IFRA guidelines
meets purity specifications of JECFA

reg. compliance

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002
FDA 21 CFR 110

Assay

≥99%

refractive index

n20/D 1.62 (lit.)

bp

120 °C/15 mmHg (lit.)

mp

20-21 °C (lit.)

density

1.125 g/mL at 25 °C

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

fragrance allergen

no known allergens

Organoleptic

burnt; coffee; corn; nutty; roasted

SMILES string

Cc1cccc2nccnc12

InChI

1S/C9H8N2/c1-7-3-2-4-8-9(7)11-6-5-10-8/h2-6H,1H3

InChI key

CQLOYHZZZCWHSG-UHFFFAOYSA-N

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5-Methylquinoxaline ≥99%, FG

Sigma-Aldrich

W320307

5-Methylquinoxaline

grade

FG, Fragrance grade, Halal, Kosher

grade

FG, Fragrance grade, Halal, Kosher

grade

FG, Fragrance grade, Halal, Kosher, natural

grade

FG, Fragrance grade, Halal, Kosher

agency

follows IFRA guidelines, meets purity specifications of JECFA

agency

follows IFRA guidelines

agency

follows IFRA guidelines, meets purity specifications of JECFA

agency

follows IFRA guidelines, meets purity specifications of JECFA

assay

≥99%

assay

≥97%

assay

≥98%

assay

≥97%

refractive index

n20/D 1.62 (lit.)

refractive index

n20/D 1.542 (lit.)

refractive index

-

refractive index

n20/D 1.527 (lit.)

bp

120 °C/15 mmHg (lit.)

bp

85 °C/3 mmHg (lit.)

bp

190 °C (lit.)

bp

96-99 °C/20 mmHg (lit.)

General description

5-Methylquinoxaline has been identified as one of the key volatile aroma compounds in roasted almonds{170] and roasted coffee.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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T1503
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-
25G
Pack Size/Quantity

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705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

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Volatile components of roasted almonds: basic fraction.
Takei Y, et al.
Agricultural and Biological Chemistry, 38(3), 645-648 (1974)
Isolation and determination of ?-dicarbonyl compounds by RP-HPLC-DAD in green and roasted coffee
Daglia M, et al.
Journal of Agricultural and Food Chemistry, 55(22), 8877-8882 (2007)
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