CAS Number
CAS Number — A unique numerical identifier assigned by the Chemical Abstracts Service to every chemical substance, used universally for unambiguous compound identification.
What Is a CAS Number?
A CAS (Chemical Abstracts Service) Registry Number is a unique numerical identifier assigned to every chemical substance, including peptides. CAS numbers provide unambiguous identification regardless of naming conventions, preventing confusion between peptide synonyms, salt forms, or stereochemical variants. Every research peptide should be cross-referenced by CAS number.
Peptide CAS Number Examples
- BPC-157: 137525-51-0
- Ipamorelin: 170851-70-4
- GHK-Cu: 49557-75-7
- LL-37: 154947-66-7
- Lookup: SciFinder, PubChem, or Common Chemistry (commonchemistry.cas.org)
Frequently Asked Questions
What is CAS Number?
A unique numerical identifier assigned by the Chemical Abstracts Service to every chemical substance, used universally for unambiguous compound identification.
Why is CAS Number important in peptide research?
CAS Number is a fundamental concept in documentation as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.