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Short regulatory and thymic peptides

Cartalax

Cartalax is the name used for the tripeptide Ala-Glu-Asp (AED), one of the short peptide bioregulators described by the Khavinson group.

Reference page for laboratory use · updated 2026-10-30

Overview

Cartalax at a glance

The tripeptide AED has a molecular weight of 333.29 and no modifications. It is closely related to the tetrapeptide epithalon (AEDG), which adds a glycine at the C-terminus.

The published literature on this peptide is limited, and the best-known review is a general overview of peptide bioregulators and ageing.

Structure

Ala-Glu-Asp is made entirely of standard L-amino acids. The sequence-based formula matches the PubChem record.

Identity

Identity data

NameCartalax
Also written asAED, Ala-Glu-Asp
TypePeptide
Research areaShort regulatory and thymic peptides
Molecular formulaC12H19N3O8
Monoisotopic mass333.1172 Da
Average molecular weight333.29 g/mol
CAS number85806-95-7
SequenceAla-Glu-Asp
PubChem recordCID 87815447

The formula was calculated independently from the written sequence and matches the PubChem record exactly. Reference data retrieved on 2026-10-30. Compare these values with the batch certificate of analysis, using the compound identity file template.

Expected values

Mass spectrometry reference

Ions calculated from the monoisotopic mass 333.1172 Da. Use them to check an LC-MS result; for larger peptides the instrument usually reports a deconvoluted mass close to 333.3 Da instead.

Ionm/z
[M+H]+334.1245
[M+Na]+356.1064
[M+K]+372.0804

Read the guide to average and monoisotopic mass for how these values are calculated.

Quality

Analytical notes for batch documents

  • At 333 Da it is detected as a singly charged ion. Adducts such as [M+Na]+ at m/z 356.11 are common and should not be confused with impurities.
  • Very small, polar peptides are difficult to retain on reversed-phase columns; ask which HPLC conditions were used.
  • No residue in this sequence is especially prone to oxidation or deamidation, so most extra peaks are likely to be synthesis-related impurities or adducts.
  • The molecular weight of a vial of powder includes counter-ions and water; the share of the powder that is peptide is the net peptide content.

Terms used on this page: C-terminus, Peptide, HPLC.

Vesta listings

Cartalax formats and prices

ProductPer vialSKUPrice per kitPrice per vial
Cartalax20 mgCartalax$123.13$12.31

Prices are per kit of 10 vials in US dollars. Shipping is paid by the customer and is shown in the cart. Volume savings of 5 %, 8 % and 10 % apply from $350.00, $600.00 and $1,000.00. See the full price list.

Published literature

Selected scientific literature

Bibliographic details were read from PubMed on 2026-10-30. The papers are listed for scientific reference; Vesta makes no claim about the use of its research materials in people or animals.

  1. Peptides and AgeingKhavinson VKh · Neuro Endocrinol Lett · 2002 · PMID 12374906

Questions

Frequently asked questions

What is Cartalax?

Cartalax is the name used for the tripeptide Ala-Glu-Asp (AED), one of the short peptide bioregulators described by the Khavinson group.

What is the molecular weight of Cartalax?

Cartalax has the formula C12H19N3O8, an average molecular weight of 333.29 g/mol and a monoisotopic mass of 333.1172 Da. A salt form, a different counter-ion or a metal complex changes the molecular weight printed on a certificate of analysis, so compare like with like.

How can I check the identity of a batch of Cartalax?

Compare the intact mass measured by LC-MS with the expected values on this page, for example [M+Na]+ at m/z 356.1064. Confirm that one main HPLC peak carries that mass and that the batch code on the report matches the vial. The guides on mass spectrometry and on certificates of analysis explain each step.

Which Cartalax products does Vesta list?

Vesta lists 1 product for Cartalax: 20 mg per vial in kits of 10 vials. Prices are shown per kit in US dollars, and shipping is paid by the customer.