If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
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About This Item
vapor pressure
8.7 hPa ( 20 °C)
Quality Level
Assay
≥97.0% (GC)
form
liquid
autoignition temp.
550 °C
potency
137 mg/kg LD50, oral (Rat)
expl. lim.
3.10-14.8 % (v/v)
pH
>6 (20 °C, 10 g/L in H2O)
bp
130-131 °C/1013 hPa
mp
-24 °C
transition temp
flash point 39 °C
density
0.97 g/cm3 at 20 °C
storage temp.
2-8°C
SMILES string
[nH]1cccc1
InChI
1S/C4H5N/c1-2-4-5-3-1/h1-5H
InChI key
KAESVJOAVNADME-UHFFFAOYSA-N
Application
- Therapeutic potential of pyrrole and pyrrolidine analogs: This review highlights the significant therapeutic potential of pyrrole derivatives, particularly in pharmacological contexts, underscoring their importance in drug development (Basha et al., 2022).
- Living on pyrrolic foundations–Advances in natural and artificial bioactive pyrrole derivatives: Discusses the role of pyrrole as a crucial building block in bioactive compounds, emphasizing its versatility and broad application range in medicine and synthetic chemistry (Domagala et al., 2015).
- Active methylenes in the synthesis of a pyrrole motif: Reviews recent advancements in synthesizing pyrrole motifs using active methylenes, crucial for developing pharmaceuticals and optoelectronic materials (Khajuria et al., 2016).
- Bioactive pyrrole-based compounds with target selectivity: Focuses on pyrrole-based compounds in drug discovery, highlighting their efficacy and target selectivity which are pivotal in the development of new therapeutics (Petri et al., 2020).
- Pyrrole as a promising electrolyte additive to trap polysulfides for lithium-sulfur batteries: Explores the use of pyrrole in enhancing the efficiency of lithium-sulfur batteries, demonstrating its utility beyond pharmaceutical applications (Yang et al., 2017).
Analysis Note
Density (d 20 °C/ 4 °C): 0.967 - 0.971
Identity (IR): passes test
Signal Word
Danger
Hazard Statements
Precautionary Statements
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
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’.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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