N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-aspartic acid 4-(1,1-dimethylethyl) 1-(2,5-dioxo-1-pyrrolidinyl) ester

N-[芴甲氧羰基]-L-天冬氨酸4-叔丁酯1-(2,5-二氧代-1-吡咯烷基)酯

Also known as: Fmoc-Asp(OtBu)-OSu, Fmoc-L-aspartic acid 4-tert-butyl 1-(hydroxysuccinimide) ester, Fmoc-L-Asp(tBu)-OSu, 4-O-tert-butyl 1-O-(2,5-dioxopyrrolidin-1-yl) (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)butanedioate, (S)-4-tert-Butyl 1-(2,5-dioxopyrrolidin-1-yl) 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)succinate, FMOC-L-ASPARTIC ACID BETA-T-BUTYL N-HYDROXYSUCCINIMIDE ESTER, N-alpha-(9-Fluorenylmethyloxycarbonyl)-L-aspartic acid beta-t-butyl ester alpha-N-Hydroxysuccinimidyl ester, Fmoc-Asp(OBut)-OSu

N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-aspartic acid 4-(1,1-dimethylethyl) 1-(2,5-dioxo-1-pyrrolidinyl) ester (CAS 78553-23-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C27H28N2O8 and a molecular weight of 508.52000 g/mol. It is also known as Fmoc-Asp(OtBu)-OSu, Fmoc-L-aspartic acid 4-tert-butyl 1-(hydroxysuccinimide) ester and Fmoc-L-Asp(tBu)-OSu. Key properties include a melting point of 128-132ºC and a density of 1.36±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
78553-23-8
Jingsj CID
J-1955129-2
Molecular Formula
C27H28N2O8
Chinese Name
N-[芴甲氧羰基]-L-天冬氨酸4-叔丁酯1-(2,5-二氧代-1-吡咯烷基)酯
Molecular Weight
508.52000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point128-132ºC
Density1.36±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-aspartic acid 4-(1,1-dimethylethyl) 1-(2,5-dioxo-1-pyrrolidinyl) ester?

The CAS number of N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-aspartic acid 4-(1,1-dimethylethyl) 1-(2,5-dioxo-1-pyrrolidinyl) ester is 78553-23-8.

What are the molecular formula and molecular weight of N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-aspartic acid 4-(1,1-dimethylethyl) 1-(2,5-dioxo-1-pyrrolidinyl) ester?

N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-aspartic acid 4-(1,1-dimethylethyl) 1-(2,5-dioxo-1-pyrrolidinyl) ester has molecular formula C27H28N2O8 and molecular weight 508.52000 g/mol.

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

Last updated:

How to cite: Jingsj. "N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-aspartic acid 4-(1,1-dimethylethyl) 1-(2,5-dioxo-1-pyrrolidinyl) ester (CAS 78553-23-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1955129-2 (accessed 2026-10-24).

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