Last reviewed: October 2026 · Cleared Peptides research team
Propylene glycol is 1,2-propanediol, CAS 57-55-6. It is a small-molecule solvent used to dissolve some laboratory solids. It is not a peptide and it has no amino-acid sequence.
| Name | Propylene glycol |
|---|---|
| Other names | 1,2-propanediol; propane-1,2-diol |
| CAS number | 57-55-6 |
| Class | Solvent. Not a peptide. |
| Catalog status | Not a current Cleared Peptides lot. |
Laboratory note
Solvent choice belongs to the assay. This page does not give a mixture, a percentage, or a preparation for any material. The storage guide covers lyophilized peptides separately.
Frequently Asked Questions
Is propylene glycol a peptide?
No. It is 1,2-propanediol, CAS 57-55-6.
Does this page give a dilution?
No.
Is this for human use?
No. Laboratory reference only.
Selected References
Registry records and peer-reviewed literature listed as scientific background. Citation does not imply endorsement, a benefit, or any use.
- Public compound record for 1,2-propanediol, CAS 57-55-6. Cited as the identity record.
Research Use Only Notice
This guide is provided for educational and laboratory reference purposes. It summarizes published structural and biochemical literature. It does not describe, recommend, or imply any use in humans or animals. These materials are not drugs, foods, cosmetics, or dietary supplements on this page, are not offered here as a treatment, and no dosing or administration instructions are provided. Cleared Peptides does not currently list a lot for every compound on this page.
