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Fmoc-Cys(Trt)-OPfp

Also known as: Fmoc-Cys(Trt)-OPfp, Fmoc-Cys(Trt)-OPfP, FMOC-CYS(TRT)-OPFP, FMOC-CYSTEINE(TRT)-OPFP, FMOC-L-CYS(TRT)-OPFP, FMOC-S-TRITYL-L-CYSTEINE PENTAFLUOROPHENYL ESTER, N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-S-TRITYL-L-CYSTEINE PENTAFLUORPHENYL ESTER, N-ALPHA-FMOC-S-TRITYL-L-CYSTEINE PENTAFLUOROPHENYL ESTER, Nα-Fmoc-S-trityl-L-cysteine pentafluorophenyl ester, Pentafluorophenyl N-[(9H-fluoren-9-ylmethoxy)carbonyl]-S-trityl-L-cysteinate, (2,3,4,5,6-pentafluorophenyl) (2R)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-tritylsulfanylpropanoate, (R)-Perfluorophenyl 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(tritylthio)propanoate, L-Cysteine, N-[(9H-fluoren-9-ylmethoxy)carbonyl]-S-(triphenylmethyl)-, 2,3,4,5,6-pentafluorophenyl ester

Fmoc-Cys(Trt)-OPfp (CAS 115520-21-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C43H30F5NO4S and a molecular weight of 751.760 g/mol. Key properties include a boiling point of 803.5±65.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 439.7±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
115520-21-3
Jingsj CID
J-46550-9
Molecular Formula
C43H30F5NO4S
Molecular Weight
751.760 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point803.5±65.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point439.7±34.3 °C
Exact Mass751.181580
PSA89.93000
LogP12.98
AppearanceSolid
Vapor Pressure0.0±2.9 mmHg at 25°C
Refractive Index1.620

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):1793-807.

Frequently Asked Questions

What is the CAS number of Fmoc-Cys(Trt)-OPfp?

The CAS number of Fmoc-Cys(Trt)-OPfp is 115520-21-3.

What are the molecular formula and molecular weight of Fmoc-Cys(Trt)-OPfp?

Fmoc-Cys(Trt)-OPfp has molecular formula C43H30F5NO4S and molecular weight 751.760 g/mol.

What are the upstream and downstream products of Fmoc-Cys(Trt)-OPfp?

For Fmoc-Cys(Trt)-OPfp, Upstream Products: Pentafluorophenyl trifluoroacetate, Fmoc-S-trityl-L-cysteine, Pentafluorophenol.

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-Cys(Trt)-OPfp (CAS 115520-21-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46550-9 (accessed 2026-11-09).

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