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Fmoc-Ser(tBu)-OH

Also known as: Fmoc-O-tert-Butyl-L-serine, FMOC-O-tert-Butyl-L-serine, N-(9-Fluorenyl methoxy carbonyl)-O-tert-butyl-L-serine, N-(9H-Fluorene-9-ylmethoxycarbonyl)-O-tert-butyl-L-serine, O-tert-Butyl-N-Fmoc-L-serine, O-tert-Butyl-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-serine, N-Fmoc-O-tert-Butyl-L-serine, 2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-[(2-methylpropan-2-yl)oxy]propanoic acid, (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-[(2-methylpropan-2-yl)oxy]propanoic acid, (2S)-2-{[(9H-Fluoren-9-ylmethoxy)carbonyl]amino}-3-[(2-methyl-2-propanyl)oxy]propanoic acid, 9-fluorenylmethoxycarbonyl-O-tert-butyl-L-serine, L-Serine, O-(1,1-dimethylethyl)-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, MFCD00037127, EINECS 276-260-6, FMOC-L-Ser(tBu)-OH

Fmoc-Ser(tBu)-OH (CAS 71989-33-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H25NO5 and a molecular weight of 383.438 g/mol. Key properties include a melting point of 130.5-135.5 °C(lit.), a boiling point of 578.6±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 303.7±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
71989-33-8
Jingsj CID
J-1114077-5
Molecular Formula
C22H25NO5
Molecular Weight
383.438 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point130.5-135.5 °C(lit.)
Boiling Point578.6±50.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point303.7±30.1 °C
Exact Mass383.173279
PSA84.86000
LogP5.10
Vapor Pressure0.0±1.7 mmHg at 25°C
Refractive Index1.575

Activity & Biological Data

Additional Information[1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-1144.

Customs & Trade Information

HS Code2924299090
Summary2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

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

The CAS number of Fmoc-Ser(tBu)-OH is 71989-33-8.

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

Fmoc-Ser(tBu)-OH has molecular formula C22H25NO5 and molecular weight 383.438 g/mol.

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

For Fmoc-Ser(tBu)-OH, Upstream Products: O-tert-Butyl-L-serine, 9H-fluoren-9-ylmethyl 2,5-dioxopyrrolidine-1-carboxylate, Fmoc-Ser-OH; Downstream Products: Fmoc-Ser(tBu)-ol, Fmoc-L-beta-homoserine(OtBu), Delta-sleep-inducing peptide.

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

Last updated:

How to cite: Jingsj. "Fmoc-Ser(tBu)-OH (CAS 71989-33-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1114077-5 (accessed 2026-11-09).

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