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Merck

PHR1558

Pyridine

Pharmaceutical Secondary Standard; Certified Reference Material

Synonyme(s) :

Pyridine

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A propos de cet article

Formule empirique (notation de Hill) :
C5H5N
Numéro CAS:
Poids moléculaire :
79.10
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
203-809-9
Beilstein/REAXYS Number:
103233
MDL number:
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Nom du produit

Pyridine, Pharmaceutical Secondary Standard; Certified Reference Material

InChI key

JUJWROOIHBZHMG-UHFFFAOYSA-N

InChI

1S/C5H5N/c1-2-4-6-5-3-1/h1-5H

SMILES string

C1=CN=CC=C1

grade

certified reference material
pharmaceutical secondary standard

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

Quality Level

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Analysis Note

These secondary standards offer multi-traceability to the USP and EP primary standards, where they are available.

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.

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.

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.
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.

pictograms

FlameExclamation mark

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

Classe de stockage

3 - Flammable liquids

wgk

WGK 2

flash_point_f

68.0 °F - closed cup

flash_point_c

20 °C - closed cup


Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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