Side-by-Side Comparison · 2026

Angiotensin 1-9 vs Catestatin

Angiotensin 1-9 vs Catestatin — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

Angiotensin 1-9
Cardiovascular Peptide

Angiotensin 1-9 (Ang 1-9) is a 9-amino acid peptide formed when ACE2 cleaves the C-terminal leucine from angiotensin I (Ang I, 10 AA). Discovered as part of the counter-regulatory renin-angiotensin system (RAS), Ang 1-9 opposes the hypertensive and tissue-damaging actions of angi...

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Catestatin
Cardiovascular Peptide

Catestatin is a 21-amino acid peptide derived from the chromogranin A (CgA) protein, specifically cleaved from the region spanning residues 352-372. It was identified as an endogenous inhibitor of catecholamine secretion, acting as a non-competitive antagonist at nicotinic acetyl...

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Key Parameters
Parameter Angiotensin 1-9 Catestatin
Category Cardiovascular Peptide Cardiovascular Peptide
Research Preclinical Research Preclinical / Early Human
Half-Life ~20-30 minutes ~15-30 minutes (IV)
Typical Dose 40-400 ng/kg/min IV infusion (animal) 0.3-3 nmol/kg (animal studies)
Frequency Acute infusion protocols Acute dosing in research
Route IV/SC (research) IV (research); intranasal under study
FDA Status Research compound Research compound

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Frequently Asked Questions
What is the difference between Angiotensin 1-9 and Catestatin?
Angiotensin 1-9: Angiotensin 1-9 (Ang 1-9) is a 9-amino acid peptide formed when ACE2 cleaves the C-terminal leucine from angiotensin I (Ang I, 10 AA). Discovered as part of the counter-regulatory renin-angiotensin sy... Catestatin: Catestatin is a 21-amino acid peptide derived from the chromogranin A (CgA) protein, specifically cleaved from the region spanning residues 352-372. It was identified as an endogenous inhibitor of cat...
Which has a longer half-life, Angiotensin 1-9 or Catestatin?
Angiotensin 1-9 half-life: ~20-30 minutes. Catestatin half-life: ~15-30 minutes (IV).
Can you stack Angiotensin 1-9 and Catestatin?
Angiotensin 1-9 and Catestatin are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.