1. GPCR/G Protein
    Neuronal Signaling
  2. Neurokinin Receptor
  3. Neurokinin A

Neurokinin A (Synonyms: α-Neurokinin; Neuromedin L; Substance K)

Cat. No.: HY-P0197 Purity: 98.92%
Handling Instructions

Neurokinin A acts via neurokinin 2 (NK-2) receptor.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

Neurokinin A Chemical Structure

Neurokinin A Chemical Structure

CAS No. : 86933-74-6

Size Price Stock Quantity
1 mg USD 120 In-stock
Estimated Time of Arrival: December 31
5 mg USD 480 In-stock
Estimated Time of Arrival: December 31
10 mg USD 864 In-stock
Estimated Time of Arrival: December 31
25 mg USD 1860 In-stock
Estimated Time of Arrival: December 31
50 mg   Get quote  
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Based on 1 publication(s) in Google Scholar

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Neurokinin A acts via neurokinin 2 (NK-2) receptor.

IC50 & Target

NK-2 receptor[1]

In Vitro

Neurokinin A (substance K) is a peptide neurotransmitter of the tachykinin family with potential as a major mediator in human airway and gastrointestinal tissues. Neurokinin A acts via the NK-2 receptor believed to be localized on smooth muscle cells and pharmacologically coupled to a GTP-binding protein. Neurokinin A is a member of a family of peptide neurotransmitters known as tachykinins. These peptides are associated with the central and peripheral nervous systems and display a wide tissue distribution. Tachykinins share the COOH-terminal structure Phe-X-Gly-Leu-Met-NH. The best known members of this family are Substance P and Neurokinin A or Substance K[1].

Molecular Weight








Sequence Shortening



Room temperature in continental US; may vary elsewhere.

Powder -80°C 2 years
  -20°C 1 year
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (88.24 mM; Need ultrasonic)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.8824 mL 4.4118 mL 8.8236 mL
5 mM 0.1765 mL 0.8824 mL 1.7647 mL
10 mM 0.0882 mL 0.4412 mL 0.8824 mL
*Please refer to the solubility information to select the appropriate solvent.
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  • Molarity Calculator

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The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2


Neurokinin Aα-NeurokininNeuromedin LSubstance KNeurokinin ReceptorNK receptorInhibitorinhibitorinhibit

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