Pyridine
SIGALD/676772 - ACS reagent, ≥99.0%
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
| anion traces | chloride (Cl-): ≤0.001% |
| sulfate (SO42-): ≤0.001% | |
| assay | ≥99.0% |
| autoignition temp. | 899 °F |
| bp | 115 °C (lit.) |
| cation traces | Cu: ≤5 ppm |
| density | 0.978 g/mL at 25 °C (lit.) |
| evapn. residue | ≤0.002% |
| expl. lim. | 12.4 % |
| form | liquid |
| grade | ACS reagent |
| impurities | ≤0.002% NH3 |
| 0.1% water | |
| 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) |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | C1=CN=CC=C1 |
| solubility | water: soluble |
| vapor density | 2.72 (vs air) |
| vapor pressure | 10 mmHg ( 13.2 °C) |
| 20 mmHg ( 25 °C) |
| Application: | Pyridine may be used in the synthesis of the following: • complexes with cobalt(II) halides • pyridine-d 5, a deuterated form of pyridine • ionic liquid matrices (ILMs) |
| General description: | Pyridine (Pyr) is a nitrogen containing six membered heterocyclic compound commonly used as a base. It is a colorless liquid with a fishy odor. Pyridine moiety is present as a major component in a number of compounds like pyridine nucleotides, pyridine alkaloids, pyridine-based polymers and pyridine-containing macrocycles. It has wide application as a solvent, catalyst and as an intermediate for synthesis. IR, Raman and UV spectra of pyridine have been analyzed and the values obtained were used to calculate its thermodynamic properties. Photodegradation and bacterial degradation of Pyr has been studied. |
| Packaging: | 1, 4, 4×4 L in aluminum 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 | ≥99.0% |
| bp | 115 °C (lit.) |
| mp | −42 °C (lit.) |
| Density | 0.978 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352005 |