Boc-Asp(OMe)-fluoromethyl ketone

(3S)-3-[[叔丁氧羰基]氨基]-5-氟-4-氧代-戊酸甲酯

Also known as: Methyl (3S)-5-fluoro-3-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)-4-oxopentanoate, Boc-D-FMK, Boc-Asp(OMe)-fluoromethyl ketone, CASPASE INHIBITOR3, (3S)-3-[[(1,1-Dimethylethoxy)carbonyl]amino]-5-fluoro-4-oxo-pentanoic acid methyl ester, Pentanoic acid, 3-[[(1,1-dimethylethoxy)carbonyl]amino]-5-fluoro-4-oxo-, methyl ester, (3S)-, N-Boc-L-aspartic acid 4-methyl ester fluoromethyl ketone

Boc-Asp(OMe)-fluoromethyl ketone (CAS 187389-53-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H18FNO5 and a molecular weight of 263.263 g/mol. It is also known as Methyl (3S)-5-fluoro-3-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)-4-oxopentanoate, Boc-D-FMK and CASPASE INHIBITOR3. Key properties include a boiling point of 383.5±37.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 185.7±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 187389-53-3
Jingsj CID: J-881322-4
Molecular Formula: C₁₁H₁₈FNO₅
Chinese Name: (3S)-3-[[叔丁氧羰基]氨基]-5-氟-4-氧代-戊酸甲酯
Molecular Weight: 263.263 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	383.5±37.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	185.7±26.5 °C
Exact Mass	263.116913
PSA	81.70000
LogP	1.91
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.440

Activity & Biological Data

Target	Caspase
Additional Information	[1]. Paunel-Görgülü A, et al. Stimulation of Fas signaling down-regulates activity of neutrophils from major trauma patients with SIRS. Immunobiology. 2011;216(3):334-342. [2]. Koike A, et al. Pan-caspase inhibitors induce necroptosis via ROS-mediated activation of mixed lineage kinase domain-like protein and p38 in classically activated macrophages. Exp Cell Res. 2019;380(2):171-179.

Customs & Trade Information

HS Code	2924199090
Summary	2924199090. other acyclic amides (including acyclic 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 Boc-Asp(OMe)-fluoromethyl ketone?

The CAS number of Boc-Asp(OMe)-fluoromethyl ketone is 187389-53-3.

What are the molecular formula and molecular weight of Boc-Asp(OMe)-fluoromethyl ketone?

Boc-Asp(OMe)-fluoromethyl ketone has molecular formula C11H18FNO5 and molecular weight 263.263 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Boc-Asp(OMe)-fluoromethyl ketone (CAS 187389-53-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-881322-4 (accessed 2026-10-28).

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