Molecular structure of 2-Amino-5-methyl-3-nitropyridine (CAS NO.7598-26-7) is:

Product Name: 2-Amino-5-methyl-3-nitropyridine
CAS Registry Number: 7598-26-7
IUPAC Name: 5-methyl-3-nitropyridin-2-amine
Molecular Weight: 153.13868 [g/mol]
Molecular Formula: C₆H₇N₃O₂
XLogP3-AA: 1.2
H-Bond Donor: 1
H-Bond Acceptor: 4
Melting Point: 189-193 °C 
Index of Refraction: 1.624
Molar Refractivity: 39.95 cm³
Molar Volume: 113 cm³
Surface Tension: 64.4 dyne/cm
Density: 1.354 g/cm³
Flash Point: 146.7 °C
Enthalpy of Vaporization: 56.04 kJ/mol
Boiling Point: 318.9 °C at 760 mmHg
Vapour Pressure: 0.00035 mmHg at 25°C
Product Categories: compounds of pyridine;Pyridine series;Pyridine;Heterocyclic Compounds;Amines;Pyridines;Amino-pyridine series

Safty information about 2-Amino-5-methyl-3-nitropyridine (CAS NO.7598-26-7) is:
Hazard Codes: Xn
Risk Statements: 36/37/38-20/21/22 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements: 36/37/39-26-22
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S22:Do not breathe dust.

 2-Amino-5-methyl-3-nitropyridine , its cas register number is 7598-26-7. It also can be called 2-Pyridinamine,5-methyl-3-nitro- ; 2-Amino-3-Nitro-5-Picoline ; 6-Amino-5-Nitro-3-Picoline ; Amino(2-)-3-Nitro-5-Methylpyridine ; 5-Methyl-3-nitropyridin-2-amine . It is a ochre crystalline powder.