IUPAC Name: Sodium 2,4-diaza-5-azanidacyclopenta-1,3-diene 
Following is the structure of 1H-1,2,4-Triazole,sodium salt (1:1) (CAS NO.41253-21-8):
                           
Empirical Formula: C₂H₂N₃Na
Molecular Weight: 91.0471 g/mol
Flash Point: 139.1 °C
Melting point: 295°C
Storage tempreture: 2-8 °C
Enthalpy of Vaporization: 47.76 kJ/mol
Boiling Point: 260 °C at 760 mmHg
Vapour Pressure of 1H-1,2,4-Triazole,sodium salt (1:1) (CAS NO.41253-21-8): 0.0203 mmHg at 25 °C 
Appearance of 1H-1,2,4-Triazole,sodium salt (1:1) (CAS NO.41253-21-8): white to brown crystalline powder
Canonical SMILES: C1=NC=N[N-]1.[Na+]
InChI: InChI=1S/C2H2N3.Na/c1-3-2-5-4-1;/h1-2H;/q-1;+1
InChIKey: NVMNEWNGLGACBB-UHFFFAOYSA-N

Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 2
F: 10-21
HS Code: 29339990

 1H-1,2,4-Triazole,sodium salt (1:1) , its cas register number is 41253-21-8. It also can be called Sodium-1,2-4-triazolide ; 1H-1,2,4-Triazole sodium salt ; and 1,2,4-Triazolylsodium . Its classification code is TSCA Flag P [A commenced PMN (Premanufacture Notice) substance].
 1H-1,2,4-Triazole,sodium salt (1:1) (CAS NO.41253-21-8) is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product : Wash mouth out with water, and get medical aid immediately.
 1H-1,2,4-Triazole,sodium salt (1:1) (CAS NO.41253-21-8) could be stable under normal temperatures and pressures, However, it may decompose on exposure to moist air or water. It is not compatible with strong oxidizing agents, strong acids. And also prevent it to broken down into hazardous decomposition products: carbon monoxide, carbon dioxide. However, its hazardous polymerization has not been reported. In addition, it should be stored in a cool, dry place, or stored in a tightly closed container.