3-Methyl-4-aminopyridine（CAS# 1990-90-5)

Molecular Formula	C6H8N2
Molar Mass	108.14
Density	0.9581 (rough estimate)
Melting Point	106-107
Boling Point	192.78°C (rough estimate)
Flash Point	138.4°C
Vapor Presure	0.00918mmHg at 25°C
Appearance	Solid
Color	Crystals from C6H6/pet ether
pKa	pK1: 9.43(+1) (25°C)
Storage Condition	Keep in dark place,Inert atmosphere,Room temperature
Sensitive	Sensitive to air and humidity
Refractive Index	1.5400 (estimate)
MDL	MFCD01704431

Product Detail

Risk Codes	R23/24/25 – Toxic by inhalation, in contact with skin and if swallowed. R36/37/38 – Irritating to eyes, respiratory system and skin. R34 – Causes burns R22 – Harmful if swallowed R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed.
Safety Description	S22 – Do not breathe dust. S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36 – Wear suitable protective clothing. S27 – Take off immediately all contaminated clothing. S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
UN IDs	2811
RTECS	TJ5140000
HS Code	29333999
Hazard Note	Harmful
Toxicity	LD50 orl-rat: 446 mg/kg TXAPA9 21,315,72

category	toxic substances
toxicity classification	highly toxic
acute toxicity	oral-rat LD50: 446 mg/kg; Oral-bird LD50: 2.40 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