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Sigma-Aldrich

2-Isopropyl-3-methoxypyrazine

97%

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About This Item

Fórmula empírica (Notação de Hill):
C8H12N2O
Número CAS:
25773-40-4
Peso molecular:
152.19
Número CE:
247-256-1
Número MDL:
MFCD00006135
Código UNSPSC:
12352100
ID de substância PubChem:
24854600
NACRES:
NA.22

Nível de qualidade

100

Ensaio

97%

Formulário

liquid

índice de refração

n20/D 1.494 (lit.)

densidade

0.996 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

COc1nccnc1C(C)C

InChI

1S/C8H12N2O/c1-6(2)7-8(11-3)10-5-4-9-7/h4-6H,1-3H3

chave InChI

NTOPKICPEQUPPH-UHFFFAOYSA-N

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Descrição geral

2-Isopropyl-3-methoxypyrazine, a taste and odor compound, was determined by headspace solid-phase microextraction (SPME) coupled with gas chromatography-mass spectrometry.

Pictogramas

Exclamation mark
GHS07

Palavra indicadora

Warning

Frases de perigo

H315,H319,H335

Classificações de perigo

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

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

152.6 °F - closed cup

Ponto de fulgor (°C)

67 °C - closed cup

Equipamento de proteção individual

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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Certificados de análise (COA)

Lot/Batch Number
MKCF9341
MKCB5483
MKBQ9662V
MKBP1375V
MKBJ0678V

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β-Cyclocitral analytical standard

Supelco

16976

β-Cyclocitral

(±)-Geosmin and 2-Methylisoborneol Solution certified reference material, TraceCERT®, 100 μg/mL each component in methanol, ampule of 1 mL

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CRM47525

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Profile: What is that smell?
Erik Vance
Nature, 455(7214), 726-728 (2008-10-10)
G J Pickering et al.
Journal of food science, 72(7), S468-S472 (2007-11-13)
2-Isopropyl-3-methoxypyrazine (IPMP) is a grape-derived component of wine flavor in some wine varieties as well as the causal compound of the off-flavor known as ladybug taint (LBT), which occurs when Harmonia axyridis beetles are incorporated with the grapes during juice
Susanne Kögel et al.
Journal of chemical ecology, 38(7), 854-864 (2012-06-01)
Food type can affect all functional aspects of an insect's life. We investigated the effects of different diet regimes on life history parameters of the ladybird beetle Harmonia axyridis. Furthermore, we tested the importance of elytral color, sex, and diet
G J Pickering et al.
Journal of food science, 73(6), S262-S266 (2009-02-26)
2-isopropyl-3-methoxypyrazine (IPMP) is the compound responsible for the off-flavor known as ladybug taint, which occurs when Harmnonia axyridis beetles become incorporated with the grapes during juice processing. It is also an important grape-derived component of juice flavor in some varieties.
Volatile substances from actinomycetes: their role in the odor pollution of water.
N N Gerber
CRC critical reviews in microbiology, 7(3), 191-214 (1979-11-01)
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Protocolos

Standard Methods 6040D: GC Analysis of Geosmin and 2-MIB on SLB®-5ms after SPME using 50/30 µm DVB/Carboxen/PDMS Fiber

Separation of 2-Isopropyl-3-methoxypyrazine 20 ppt; 2-Isobutyl-3-methoxypyrazine; 2-Methylisoborneol; (±)-Geosmin 10 ppt

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