Pyridine
SIGALD/P57506 - ReagentPlus®, ≥99%
CAS Number: 110-86-1
Empirical Formula (Hill Notation): C5H5N
Molecular Weight: 79.10
EC Number: 203-809-9
MDL Number: MFCD00011732
Linear Formula: C5H5N
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: P57506-1L.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: P57506-500ML.
| assay | ≥99% |
| autoignition temp. | 899 °F |
| bp | 115 °C (lit.) |
| density | 0.978 g/mL at 25 °C (lit.) |
| expl. lim. | 12.4 % |
| form | liquid |
| impurities | ≤0.1% water (Karl Fischer) |
| InChI | 1S/C5H5N/c1-2-4-6-5-3-1/h |
| InChI key | JUJWROOIHBZHMG-UHFFFAOYSA |
| mp | −42 °C (lit.) |
| pH | 8.5 (25 °C, 15.82 g/L) |
| product line | ReagentPlus® |
| Quality Level | 100  |
| refractive index | n |
| SMILES string | C1=CN=CC=C1 |
| vapor density | 2.72 (vs air) |
| vapor pressure | 10 mmHg ( 13.2 °C) |
| 20 mmHg ( 25 °C) |
| Application: | Pyridine can be used as a solvent: • To synthesize glycophospholipids and phosphate diesters or phosphonate monoesters in the presence of trichloroacetonitrile as an activating reagent. • In Knoevenagel condensation reactions. • In the TEMPO-mediated radical polymerization of 3-vinylpyridine. |
| General description: | Pyridine (Pyr) is a nitrogen-containing six-membered heterocyclic compound that is commonly used as a solvent in organic synthesis. It also has wide applications as a base, catalyst, and intermediate for synthesis. |
| Legal Information: | ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Packaging: | 1, 4 L in glass bottle |
| Packaging: | 500 mL in glass bottle |
| Symbol |   GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225 - H302 + H312 + H332 - H315 - H319 |
| Precautionary statements | P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-20/21/22-36/38-52 |
| Safety Statements | 26-28 |
| RIDADR | UN1282 - class 3 - PG 2 - Pyridine |
| WGK Germany | WGK 2 |
| Flash Point(F) | 68.0 °F - closed cup |
| Flash Point(C) | 20 °C - closed cup |
| Purity | ≥99% |
| bp | 115 °C (lit.) |
| mp | −42 °C (lit.) |
| Density | 0.978 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352005 |