Substance P (free acid)
ARG-PRO-LYS-PRO-GLN-GLN-PHE-PHE-GLY-LEU-MET
Also known as: H-ARG-PRO-LYS-PRO-GLN-GLN-PHE-PHE-GLY-LEU-MET-OH, H-RPKPQQFFGLM-OH, RPKPQQFFGLM, RPKPQQFFGLM-OH, SUBSTANCE P, SUBSTANCE P (FREE ACID), Substance P, 11-L-methionine-, Substance P, free acid, [MET-OH11]-SUBSTANCE P, [Met-OH11] substance P, substance p
Substance P (free acid) (CAS 71977-09-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C63H97N17O14S and a molecular weight of 1348.61000 g/mol. It is also known as H-ARG-PRO-LYS-PRO-GLN-GLN-PHE-PHE-GLY-LEU-MET-OH, H-RPKPQQFFGLM-OH and RPKPQQFFGLM. Key property: a density of 1.41 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 71977-09-8
- Jingsj CID
- J-1956339-6
- Molecular Formula
- C63H97N17O14S
- Chinese Name
- ARG-PRO-LYS-PRO-GLN-GLN-PHE-PHE-GLY-LEU-MET
- Molecular Weight
- 1348.61000 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1.41 g/cm3 |
|---|
Frequently Asked Questions
What is the CAS number of Substance P (free acid)?
The CAS number of Substance P (free acid) is 71977-09-8.
What are the molecular formula and molecular weight of Substance P (free acid)?
Substance P (free acid) has molecular formula C63H97N17O14S and molecular weight 1348.61000 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Substance P (free acid) (CAS 71977-09-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956339-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.