Fmoc-Ser(Ac)-OH

Also known as: Fmoc-O-acetyl-L-serine, O-Acetyl-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-serine, (2S)-3-acetyloxy-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoic acid, N-alpha-(9-Fluorenylmethoxycarbonyl)-O-acetyl-L-serine, N-alpha-Fmoc-O-acetyl-L-serine, Fmoc-L-Ser(Ac), Fmoc-Ser(Ac)

Fmoc-Ser(Ac)-OH (CAS 171778-17-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H19NO6 and a molecular weight of 369.368 g/mol. Key properties include a boiling point of 611.2±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 323.4±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 171778-17-9
Jingsj CID: J-1960107-1
Molecular Formula: C₂₀H₁₉NO₆
Molecular Weight: 369.368 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	611.2±55.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	323.4±31.5 °C
Exact Mass	369.121246
PSA	101.93000
LogP	4.13
Vapor Pressure	0.0±1.8 mmHg at 25°C
Refractive Index	1.596
Storage Conditions	2-8°C

Activity & Biological Data

Additional Information	[1]. Uehara Keiji, et al. Preparation of peptides as broad-spectrum coronavirus membrane fusion inhibitors. Patent CN112625094.

Frequently Asked Questions

What is the CAS number of Fmoc-Ser(Ac)-OH?

The CAS number of Fmoc-Ser(Ac)-OH is 171778-17-9.

What are the molecular formula and molecular weight of Fmoc-Ser(Ac)-OH?

Fmoc-Ser(Ac)-OH has molecular formula C20H19NO6 and molecular weight 369.368 g/mol.

What are the upstream and downstream products of Fmoc-Ser(Ac)-OH?

For Fmoc-Ser(Ac)-OH, Upstream Products: Fmoc-Ser-OH.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Fmoc-Ser(Ac)-OH (CAS 171778-17-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1960107-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.