5-Amino-1MQ: a small molecule, not a peptide
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5-Amino-1MQ is a small-molecule quinolinium compound, not a peptide, and its CAS number is 42464-96-0. It has no amino acid sequence, which sets it apart from most of the catalogue. This guide explains what that means for identification and documentation.
5-Amino-1MQ at a glance
| Compound | 5-Amino-1MQ |
|---|---|
| Synonyms | 5-Amino-1-methylquinolinium, 5-Amino-1MQ |
| CAS number | 42464-96-0 |
| Class | Small molecule (quinolinium) |
| Supplied form | Lyophilised powder |
| Vial size | 5mg per vial |
What is the difference between a small molecule and a peptide?
A peptide is a chain of amino acids joined by peptide bonds, so it can be written as a sequence. A small molecule is a compound with a defined structure but no such chain. 5-Amino-1MQ is built on a quinolinium ring system, so there is no residue-by-residue sequence to check.
That changes what identity checking looks like. For a peptide, a certificate of analysis compares measured mass against a mass calculated from the sequence. For a small molecule, identity rests on the name, the CAS number and the structure confirmed by the analytical method used.
Why does the salt form matter?
The listing notes that this type of compound is typically supplied as a chloride or iodide salt. A salt form changes the total mass compared with the bare cation, so a mass figure on paper may refer to either. When reading a document, check which form the reported mass describes. Our listing does not state a formula or molecular weight, so use the batch document for those values. See peptide purity explained for how salts and counter-ions affect reported figures.
Which listing contains 5-Amino-1MQ?
| Listing | Format |
|---|---|
| 5-Amino-1MQ 5mg | One vial, single compound, 5mg |
It is available only as a single-compound vial. Compare the format with other listings in all research compounds.
What should the documentation show?
- The compound name and CAS number 42464-96-0 match the vial label.
- A purity figure for the batch.
- The salt form stated, with any mass figure clearly tied to it.
- Appearance recorded as a lyophilised powder.
Batch documents are on the COAs page. For a reading checklist see how to read a peptide certificate of analysis.
Frequently asked questions
Is 5-Amino-1MQ a peptide?
No. It is a small-molecule quinolinium compound and has no amino acid sequence.
What is the CAS number for 5-Amino-1MQ?
The CAS number listed is 42464-96-0.
What is the full chemical name?
The listing gives the synonym 5-Amino-1-methylquinolinium alongside the abbreviation 5-Amino-1MQ.
What vial size is listed?
Five milligrams per vial, supplied as a lyophilised powder.
Why is there no sequence in the listing?
Because it is not a peptide. A sequence describes a chain of amino acids, and this compound is not built that way.
All Ascend Research products are sold strictly for laboratory research use only. They are not for human or animal use, and nothing in this article is medical advice.
The Ascend Research team
