Name |
2-Amino-5-methylpyridine |
Synonyms |
6-amino-3-picolin |
CAS |
1603-41-4 |
EINECS |
216-503-5 |
InChI |
InChI=1/C6H8N2/c1-5-2-3-6(7)8-4-5/h2-4H,1H3,(H2,7,8)/p+1 |
InChIKey |
CMBSSVKZOPZBKW-UHFFFAOYSA-N |
Molecular Formula |
C6H8N2 |
Molar Mass |
108.14 |
Density |
227 |
Melting Point |
76-77°C(lit.) |
Boling Point |
227°C(lit.) |
Flash Point |
118°C |
Solubility |
1000g/l |
Vapor Presure |
3.706Pa at 25℃ |
Appearance |
White crystal |
Color |
White to light yellow |
BRN |
107050 |
pKa |
pK1: 7.22(+1) (25°C) |
Storage Condition |
Keep in dark place,Inert atmosphere,Room temperature |
Sensitive |
Hygroscopic |
Refractive Index |
1,524-1,528 |
MDL |
MFCD00006328 |
Physical and Chemical Properties |
character: white or yellowish solid |
Risk Codes |
R23/24/25 – Toxic by inhalation, in contact with skin and if swallowed. |
Safety Description |
S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
UN IDs |
UN 2811 6.1/PG 2 |
WGK Germany |
3 |
RTECS |
TJ5141000 |
TSCA |
Yes |
HS Code |
29333999 |
Hazard Note |
Irritant |
Hazard Class |
6.1 |
Packing Group |
III |
Toxicity |
LD50 orl-rat: 200 mg/kg 85JCAE -,841,86 |
LogP |
1.08 |
NIST chemical information |
|
EPA chemical information |
|
Uses |
2-amino-5-methylpyridine is an intermediate of the insecticides imidacloprid and acetamiprid. |
Production method |
The preparation method is to add trimethylamine and 3-methylpyridine-N-oxide to dichloromethane, cool to 5 ℃, add dichloromethane solution of thionyl chloride, stir the liquid, evaporate the solvent to obtain (5-methylpyridine-2-yl) trimethylammonium chloride, and then add bromohydroacid, products can be obtained by cracking at 200~210 ℃. |
category |
toxic substances |
toxicity classification |
highly toxic |
acute toxicity |
oral-rat LD50: 200 mg/kg; Subcutaneous-mouse LD50: 110 mg/kg |
flammability hazard characteristics |
combustible; combustion produces toxic nitrogen oxide smoke |
storage and transportation characteristics |
warehouse ventilation and low temperature drying |
fire extinguishing agent |
dry powder, foam, sand, carbon dioxide, mist water |