90961
3-Methylindole
analytical standard
Synonym(s):
3-Methylindole, Skatole
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About This Item
Empirical Formula (Hill Notation):
C9H9N
CAS Number:
Molecular Weight:
131.17
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
EC Number:
201-471-7
Beilstein/REAXYS Number:
111296
MDL number:
grade
analytical standard
Quality Level
assay
≥99.0% (GC)
shelf life
limited shelf life, expiry date on the label
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
bp
265-266 °C (lit.)
mp
92-97 °C (lit.)
application(s)
cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care
format
neat
SMILES string
Cc1c[nH]c2ccccc12
InChI
1S/C9H9N/c1-7-6-10-9-5-3-2-4-8(7)9/h2-6,10H,1H3
InChI key
ZFRKQXVRDFCRJG-UHFFFAOYSA-N
General description
3-Methylindole (3-MI), commonly found in wine, dairy products, and other foodstuffs, leads to an unpleasant fecal like odor in pig meat products. It is reported to be produced in the intestines of several species by the microbial degradation of tryptophan.
Application
3-Methylindole may be used as an analytical reference standard
for the quantification of the analyte in the following:
for the quantification of the analyte in the following:
- Faeces intestinal contents, and bacterial cultures using gas chromatography with nitrogen-phosphorus detector (GC-NPD).
- Adipose tissue of pigs using reversed-phase high-performance liquid chromatography with UV detection (RP-HPLC-UV).
- Pit mud and baijiu (SAB) samples using gas chromatography-olfactometry (GC–MS/O) and gas chromatography coupled to mass spectrometry (GC–MS).
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
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hcodes
pcodes
Hazard Classifications
Aquatic Chronic 2
Storage Class
11 - Combustible Solids
wgk
WGK 2
flash_point_f
269.6 °F
flash_point_c
132 °C
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Characterization of 3-methylindole as a source of a ?mud?-like off-odor in strong-aroma types of base baijiu
Dong W, et al.
Journal of Agricultural and Food Chemistry, 66(48), 12765-12772 (2018)
Gas chromatographic determination of indole and 3-methylindole (skatole) in bacterial culture media, intestinal contents and faeces
Jensen TM, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 655(2), 275-280 (1994)
High-performance liquid chromatographic method for the determination of 3-methylindole (skatole) and indole in adipose tissue of pigs
Dehnhard M, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 616(2), 205-209 (1993)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 90961-100MG | 04061833253359 |