PHR1558
Pyridine
Pharmaceutical Secondary Standard; Certified Reference Material
Synonym(s):
Pyridine
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About This Item
Empirical Formula (Hill Notation):
C5H5N
CAS Number:
Molecular Weight:
79.10
Beilstein/REAXYS Number:
103233
EC Number:
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24
Recommended Products
grade
certified reference material
pharmaceutical secondary standard
Quality Level
agency
traceable to USP 1601747
vapor density
2.72 (vs air)
vapor pressure
10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)
CofA
current certificate can be downloaded
autoignition temp.
899 °F
expl. lim.
12.4 %
packaging
ampule of 3x1.2 mL each
technique(s)
HPLC: suitable
gas chromatography (GC): suitable
refractive index
n20/D 1.509 (lit.)
bp
115 °C (lit.)
mp
−42 °C (lit.)
density
0.978 g/mL at 25 °C (lit.)
application(s)
pharmaceutical (small molecule)
format
neat
storage temp.
2-30°C
SMILES string
C1=CN=CC=C1
InChI
1S/C5H5N/c1-2-4-6-5-3-1/h1-5H
Inchi Key
JUJWROOIHBZHMG-UHFFFAOYSA-N
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General description
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards. Pyridine is a heterocyclic aromatic compound that is a commonly used solvent in organic and inorganic chemistry. Its weakly basic nature allows it to act as a proton acceptor in acid base reactions, and to form salts with strong acids. In the acylation of alcohols, pyridine can act as a nucleophilic catalyst.
Application
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.
Analysis Note
These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.
Other Notes
This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
Footnote
To see an example of a Certificate of Analysis for this material enter LRAC0263 in the slot below. This is an example certificate only and may not be the lot that you receive.
signalword
Danger
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
3 - Flammable liquids
wgk_germany
WGK 2
flash_point_f
68.0 °F - closed cup
flash_point_c
20 °C - closed cup
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