L-Phenylalanyl-L-tryptophan

L-苯丙氨酰-L-色氨酸

Also known as: H-Phe-Trp-OH, Phe-Trp, Phenylalanyltryptophan, L-Phe-L-Trp-OH, Dipeptide-4, n-L-Phenylalanyl-L-tryptophan, Phenylalanyltryptophane

L-Phenylalanyl-L-tryptophan (CAS 24587-41-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H21N3O3 and a molecular weight of 351.399 g/mol. It is also known as H-Phe-Trp-OH, Phe-Trp and Phenylalanyltryptophan. Key properties include a boiling point of 688.3±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 370.1±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
24587-41-5
Jingsj CID
J-1968833-8
Molecular Formula
C20H21N3O3
Chinese Name
L-苯丙氨酰-L-色氨酸
Molecular Weight
351.399 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point688.3±55.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point370.1±31.5 °C
Exact Mass351.158295
PSA108.21000
LogP2.40
Vapor Pressure0.0±2.3 mmHg at 25°C
Refractive Index1.672
Storage Conditions2-8℃

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. V Rizzo, et al. Co-oligopeptides of aromatic amino acids and glycine with a variable distance between the aromatic residues. VI. Circular dichroism studies of Co-oligopeptides of l-phenylalanine, L-tryptophan, and glycine. Biopolymers. 1977 Feb;16(2):449-60.

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of L-Phenylalanyl-L-tryptophan?

The CAS number of L-Phenylalanyl-L-tryptophan is 24587-41-5.

What are the molecular formula and molecular weight of L-Phenylalanyl-L-tryptophan?

L-Phenylalanyl-L-tryptophan has molecular formula C20H21N3O3 and molecular weight 351.399 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "L-Phenylalanyl-L-tryptophan (CAS 24587-41-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1968833-8 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.