Skip to Content
Merck
All Photos(1)

Documents

W338605

Sigma-Aldrich

Pyrrole

≥98%, FCC, FG

Synonym(s):

Azole, Divinylenimine, Imidole

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C4H5N
CAS Number:
109-97-7
Molecular Weight:
67.09
FEMA Number:
3386
Beilstein:
1159
EC Number:
203-724-7
Council of Europe no.:
2381
MDL number:
MFCD00005216
UNSPSC Code:
12164502
PubChem Substance ID:
24901681
Flavis number:
14.041
NACRES:
NA.21

biological source

synthetic

grade

FG

Agency

meets purity specifications of JECFA

reg. compliance

EU Regulation 1334/2008 & 872/2012
FCC
FDA 21 CFR 110

vapor density

2.31 (vs air)

Assay

≥98%

refractive index

n20/D 1.508 (lit.)

bp

131 °C (lit.)

mp

−23 °C (lit.)

density

0.967 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

Organoleptic

nutty; ethereal; sweet

storage temp.

2-8°C

SMILES string

c1cc[nH]c1

InChI

1S/C4H5N/c1-2-4-5-3-1/h1-5H

InChI key

KAESVJOAVNADME-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

General description

Pyrrole is one of the flavor compounds that is formed in thermally processed foods due to the Maillard reaction.

Application

<ul>
<li><strong>Can neonicotinoid and pyrrole insecticides manage malaria vector resistance in high pyrethroid resistance areas in Côte d′Ivoire</strong>: This research evaluates the effectiveness of pyrrole insecticides in controlling malaria vectors in regions with high pyrethroid resistance. The findings suggest that these insecticides can play a significant role in integrated vector management strategies to combat malaria (Ekra et al., 2024).</li>
</ul>

Signal Word

Danger

Hazard Statements

H226,H301,H318,H332

Hazard Classifications

Acute Tox. 3 Oral - Acute Tox. 4 Inhalation - Eye Dam. 1 - Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

96.8 °F - closed cup

Flash Point(C)

36 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Flavor compounds formed during the Maillard reaction.
Mottram DS.
ACS Symp. Ser., 543, 104?126-104?126 (1994)
Pyrroles in foods.
Maga JA.
Journal of Agricultural and Food Chemistry, 29(4), 691-694 (1981)
The Maillard reaction: source of flavour in thermally processed foods.
Mottram DS.
Flavours and Fragrances, 269-283 (2007)
Woo Young Hong et al.
Biomaterials, 35(36), 9573-9580 (2014-09-07)
Here, we propose an integrated multifunctional system constructed by conductive disulfide-biotin-doped polypyrrole nanowires (SS-biotin-Ppy NWs) for capture, release, and in situ quantification of circulating tumor cells (CTCs). A well-ordered three-dimensional nanowire structure equipped with a monoclonal antibody offers a significant
Satoshi Kubo et al.
Annals of the rheumatic diseases, 73(12), 2192-2198 (2013-09-10)
Tofacitinib, which is a Janus kinase (JAK) inhibitor, has shown clinical effects in the treatment of rheumatoid arthritis. JAKs are important kinases in lymphocyte differentiation; however, their function in dendritic cells (DCs) is unknown. In this study, the function of
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service