504-29-0
Product Name:
2-Aminopyridine
Formula:
C5H6N2
Synonyms:
o-Aminopyridine;2-Aminopyridine;2-AP;2-Pyridinamine;2-Pyridylamine
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | 2-aminopyridine appears as white powder or crystals or light brown solid. (NTP, 1992) |
|---|---|
| Color/Form | White leaflets or large colorless crystals |
| Odor | Characteristic odor |
| Boiling Point | 399 to 410 °F at 760 mmHg (NTP, 1992) |
| Melting Point | 138 to 140 °F (NTP, 1992) |
| Flash Point | 198 °F (NTP, 1992) |
| Solubility | 10 to 50 mg/mL at 66 °F (NTP, 1992) |
| Density | 1.065 @ 20 °C/4 °C |
| Vapor Density | 3.25 (Air= 1) |
| Vapor Pressure | 0.8 mmHg at 77 °F (NIOSH, 2023) |
| LogP | log Kow= 0.48 |
| Decomposition | DANGEROUS; WHEN HEATED TO DECOMP IT EMITS HIGHLY TOXIC FUMES OF /NITROGEN OXIDES/. |
| pH | BASE |
| Ionization Potential | 8.00 eV |
| Ionization Efficiency | Positive |
| Dissociation Constants | pKa 6.82 @ 20 °C; Ka 1.51x10-7 @ 20 °C |
| Kovats Retention Index | 1002 |
| Other Experimental Properties | Exists as a tautomeric amino and imino forms. Amino form predominates over imino form; ratio 1000:1 |
| Chemical Classes | Nitrogen Compounds -> Pyridines |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Corrosion Corrosives GHS05  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H412:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 94.11 g/mol |
|---|---|
| XLogP3 | 0.5 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 94.053098200 g/mol |
| Monoisotopic Mass | 94.053098200 g/mol |
| Topological Polar Surface Area | 38.9 Ų |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| Complexity | 54 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
2-aminopyridine appears as white powder or crystals or light brown solid. (NTP, 1992)