Niamide Structural Formula

Niamide Structural Formula

Structural formula

Business number 014F
Molecular formula C16H18N4O2
Molecular weight 298.34




Pyridine-4-carboxylic 2-[2-(benzylcarbamoyl)ethyl]hydrazide,


Numbering system

CAS number:51-12-7

MDL number:MFCD00010106

EINECS number:200-079-3

RTECS number:NS1225000

BRN number:492941

PubChem number:24278185

Physical property data

1. Properties: White crystalline powder. Slightly bitter taste.

2. Density (g/mL, 25/4℃): Undetermined

3. Relative vapor density (g/mL, air=1): Undetermined

4. Melting point (ºC): 152~153

5. Boiling point (ºC, normal pressure): Undetermined

6. Boiling point (ºC, 5.2kPa): Undetermined

7. Refractive index: Undetermined

8. Flash point (ºC): Undetermined

9. Specific rotation (º): Undetermined Determined

10. Autoignition point or ignition temperature (ºC): Not determined

11. Vapor pressure (kPa, 25ºC): Not determined

12. Saturated vapor pressure (kPa, 60ºC): Undetermined

13. Heat of combustion (KJ/mol): Undetermined

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) partition coefficient: Undetermined

17. Explosion upper limit ( %, V/V): Undetermined

18. Lower explosion limit (%, V/V): Undetermined

19. Solubility: Easily soluble in acidic solvents, slightly soluble in water.

Toxicological data

1. Acute toxicity: rat oral LD50: 1700mg/kg; rat abdominal LD50: 760mg/kg; mouse oral LD50: 590mg/kg; mouse abdominal LD50: 200mg/kg; rabbit abdominal LD50: >150 mg /kg2. Other multi-dose toxicity: rat oral TDLo: 54600mg/kg26W-C3. Reproductive toxicity: female mouse subcutaneous TDLo: 5045mg/kg, conception after 6 days 4. Mutagenicity: mutation microorganismsTEST system: bacteria-Typhimurium Salmonella: 10ug/plate; DNA repairTEST system: bacteria – E. coli: 27umol/plate; mutation test system – not other specifiedTEST systems bacteria – Bacillus subtilis: 10mmol/L; DNA damage: mouse peritoneal cavity: 2450umol/kg; Sister chromosome exchange: mouse abdominal cavity: 435mg/kg



Molecular structure data

1. Molar refractive index: 83.57

2. Molar volume (cm3/mol): 247.9

3. Isotonic specific volume (90.2K ): 667.0

4. Surface tension (dyne/cm): 52.3

5. Polarizability (10-24cm3): 33.13

Compute chemical data

1. Hydrophobic parameter calculation reference value (XlogP): 0.9

2. Number of hydrogen bond donors: 3

3. Number of hydrogen bond acceptors: 4

4. Number of rotatable chemical bonds: 7

5. Number of tautomers: 6

6. Topological molecular polar surface area (TPSA): 83.1

7. Number of heavy atoms: 22

8. Surface charge: 0

9. Complexity: 350

10. Number of isotope atoms : 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 0

13. Determine the chemical bond configuration Number of centers: 0

14. Number of uncertain chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability


Storage method

This product should be sealed with argon gas and stored below 0℃.

Synthesis method

Prepared from isonicotinic hydrazide as raw material.


Ammonia oxidase (MAO) inhibitor. Medicine (antidepressants).

This product is a monoamine oxidase inhibitor with the same effects, clinical uses and adverse reactions as phenelzine. Used to treat various forms of depression, anxiety, and phobias, as well as for sore throats.