Stereochemistry | ACHIRAL |
Molecular Formula | H4N |
Molecular Weight | 18.0385 |
Optical Activity | NONE |
Defined Stereocenters | 0 / 0 |
E/Z Centers | 0 |
Charge | 1 |
SHOW SMILES / InChI
SMILES
[NH4+]
InChI
InChIKey=QGZKDVFQNNGYKY-UHFFFAOYSA-O
InChI=1S/H3N/h1H3/p+1
Molecular Formula | H3N |
Molecular Weight | 17.0305 |
Charge | 0 |
Count |
MOL RATIO
1 MOL RATIO (average) |
Stereochemistry | ACHIRAL |
Additional Stereochemistry | No |
Defined Stereocenters | 0 / 0 |
E/Z Centers | 0 |
Optical Activity | NONE |
The ammonium cation is a positively charged polyatomic ion with the chemical formula NH4+. Ammonium ions are a waste product of the metabolism of animals. In fish and aquatic invertebrates, it is excreted directly into the water. In mammals, sharks, and amphibians, it is converted in the urea cycle to urea, because urea is less toxic and can be stored more efficiently. In birds, reptiles, and terrestrial snails, metabolic ammonium is converted into uric acid, which is solid and can therefore be excreted with minimal water loss. Ammonium is an important source of nitrogen for many plant species, especially those growing on hypoxic soils. However, it is also toxic to most crop species and is rarely applied as a sole nitrogen source. The ammonium ion (NH4+) in the body plays an important role in the maintenance of acid-base balance. The kidney uses ammonium (NH4+) in place of sodium (Na+) to combine with fixed anions in maintaining acid-base balance, especially as a homeostatic compensatory mechanism in metabolic acidosis. When a loss of hydrogen ions (H+) occurs and serum chloride (Cl–) decreases, sodium is made available for combination with bicarbonate (HCO3–). This creates an excess of sodium bicarbonate (NaHCO3) which leads to a rise in blood pH and a state of metabolic alkalosis. The therapeutic effects of Ammonium (as Ammonium Chloride) depend upon the ability of the kidney to utilize ammonia in the excretion of an excess of fixed anions and the conversion of ammonia to urea by the liver, thereby liberating hydrogen (H+) and chloride (Cl–) ions into the extracellular fluid.
CNS Activity
Approval Year
PubMed
Sample Use Guides
Solutions for intravenous infusion should not exceed a concentration of 1% to 2% of Ammonium Chloride.
Dosage is dependent upon the condition and tolerance of the patient. It is recommended that the contents of one to two vials (100 to 200 mEq) be added to 500 or 1000 mL of isotonic (0.9%) sodium chloride injection. The rate of intravenous infusion should not exceed 5 mL per minute in adults (approximately 3 hours for infusion of 1000 mL). Dosage should be monitored by repeated serum bicarbonate determinations.
Route of Administration:
Intravenous
HepG2 is a human HCC line purchased from ATCC and was cultured in Dulbecco’s modified Eagle’s medium (DMEM) supplemented with 20 % fetal bovine serum (Invitrogen, Carlsbad, CA, USA). HCC cells were treated with rapamycin (100 mkM) as an autophagy inducer and ammonium chloride (NH4Cl, 10mkM) as an autophagy inhibitor. NH4Cl inhibited rapamycin-induced autophagy in HCC cells.