Monopotassium aspartate
CAS 1115-63-5
EC 214-226-4
Formula C4H7NO4.K
MW 171.19 g/mol
Amino Acids & Peptides Pharmaceuticals & HealthcareFood & NutritionAgriculture & Feed Antioxidant & StabilizerFlavoring & Acidulant
Description
Monopotassium aspartate (CAS 1115-63-5) is the potassium salt of aspartic acid, also known commercially as Aspara K or Potassium Aspartate. It carries no assigned E-code and is registered under EC number 214-226-4 with the molecular formula C4H7NO4.K.
In food and nutrition applications, it functions as a flavoring agent and acidulant, contributing mild umami-adjacent taste modulation in electrolyte formulations and dietary supplements. In pharmaceutical manufacturing, it serves as a potassium source in mineral supplementation products, where its high bioavailability relative to inorganic potassium salts supports targeted therapeutic dosing.
Monopotassium aspartate is available in food-grade and pharmaceutical-grade specifications, with compliance referenced against FCC and Ph.Eur. standards where applicable. It falls under HS code 29224999 and is subject to REACH registration requirements for EU supply. Packaging is typically offered in 25 kg bags or fiber drums.
In food and nutrition applications, it functions as a flavoring agent and acidulant, contributing mild umami-adjacent taste modulation in electrolyte formulations and dietary supplements. In pharmaceutical manufacturing, it serves as a potassium source in mineral supplementation products, where its high bioavailability relative to inorganic potassium salts supports targeted therapeutic dosing.
Monopotassium aspartate is available in food-grade and pharmaceutical-grade specifications, with compliance referenced against FCC and Ph.Eur. standards where applicable. It falls under HS code 29224999 and is subject to REACH registration requirements for EU supply. Packaging is typically offered in 25 kg bags or fiber drums.
Physical Properties
| Appearance | White cryst. powder |
| Color | White to Almost white |
| Form | powder to crystal |
| Refractive Index | 20.5 ° (C=8, 6mol/L HCl) |
| Log P | -0.669 (est) |
Trade & Regulatory
| HS Code | 29224999 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
potassium (2S)-2-amino-4-hydroxy-4-oxobutanoatepotassium aspartateaspartate potassiumpotassium L-aspartateL-Aspartic Acid Potassium SaltAspara KPotassium (S)H-ASP-OH K SALT-2-aminosuccinate
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