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
1.09728
Pyridine
for analysis EMSURE® ACS,Reag. Ph Eur
Synonym(s):
Pyridine, Azine, Azabenzene
About This Item
for analytical purposes
grade
ACS reagent
for analytical purposes
Quality Level
Agency
reag. Ph. Eur.
vapor pressure
26.7 hPa ( 25 °C)
product line
EMSURE®
Assay
≥99.5% (GC)
form
liquid
autoignition temp.
482 °C
potency
891 mg/kg LD50, oral (Rat)
1121 mg/kg LD50, skin (Rabbit)
dilution
(for analytical testing)
impurities
≤0.002% Ammonia (NH3)
≤0.01% Piperidine (GC)
≤0.1% Water
≤0.2% 2-Picoline (GC)
evapn. residue
≤0.002%
color
clearAPHA: ≤10
pH
8.81 (20 °C in H2O)
bp
115 °C/1013 hPa
mp
-42 °C
transition temp
flash point 17 °C
density
0.982 g/cm3 at 20 °C
anion traces
chloride (Cl-): ≤0.0005%
sulfate (SO42-): ≤0.0005%
cation traces
Al: ≤0.00005%
B: ≤0.000002%
Ba: ≤0.00001%
Ca: ≤0.00005%
Cd: ≤0.000005%
Co: ≤0.000002%
Cr: ≤0.000002%
Cu: ≤0.000002%
Fe: ≤0.00001%
Mg: ≤0.00001%
Mn: ≤0.000002%
Ni: ≤0.000002%
Pb: ≤0.00001%
Sn: ≤0.00001%
Zn: ≤0.00001%
storage temp.
2-30°C
SMILES string
n1ccccc1
InChI
1S/C5H5N/c1-2-4-6-5-3-1/h1-5H
InChI key
JUJWROOIHBZHMG-UHFFFAOYSA-N
General description
Application
- Enantioselective separation of amino acids as biomarkers indicating life in extraterrestrial environments.: Research on using pyridine-based chromatography for the enantioselective separation of amino acids, which can help in the search for extraterrestrial life by analyzing amino acid chirality (Pietrogrande, 2013).
Linkage
Analysis Note
Identity (IR): conforms
Appearance: clear
Color: ≤ 10 Hazen
Solubility in water: conforms
Boiling point: 114 - 116 °C
Reducing substances: conforms
Ammonia (NH₃): ≤ 0.002 %
2-Picoline (GC): ≤ 0.2 %
Piperidine (GC): ≤ 0.01 %
Chloride (Cl): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.0005 %
Al (Aluminium): ≤ 0.00005 %
B (Boron): ≤ 0.000002 %
Ba (Barium): ≤ 0.00001 %
Ca (Calcium): ≤ 0.00005 %
Cd (Cadmium): ≤ 0.000005 %
Co (Cobalt): ≤ 0.000002 %
Cr (Chromium): ≤ 0.000002 %
Cu (Copper): ≤ 0.000002 %
Fe (Iron): ≤ 0.00001 %
Mg (Magnesium): ≤ 0.00001 %
Mn (Manganese): ≤ 0.000002 %
Ni (Nickel): ≤ 0.000002 %
Pb (Lead): ≤ 0.00001 %
Sn (Tin): ≤ 0.00001 %
Zn (Zinc): ≤ 0.00001 %
Evaporation residue: ≤ 0.002 %
Water: ≤ 0.1 %
Other Notes
Legal Information
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
Storage Class Code
3 - Flammable liquids
WGK
WGK 2
Flash Point(F)
68.0 °F - closed cup
Flash Point(C)
20 °C - closed cup
Certificates of Analysis (COA)
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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.pdfHelpful?
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