Fmoc-L-β-homothreonine(OtBu)-OH

Also known as: (3R,4R)-3-(9H-Fluoren-9-ylmethoxycarbonylamino)-4-[(2-methylpropan-2-yl)oxy]pentanoic acid, (3R,4R)-4-(tert-Butoxy)-3-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}pentanoic acid, (3R,4R)-4-tert-Butoxy-3-(Fmoc-amino)pentanoic acid, 2,3,5-Trideoxy-3-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-4-O-(2-methyl-2-propanyl)-D-threo-pentonic acid, Fmoc-β-HoThr(OtBu)-OH, Fmoc-β-homothreonine(OtBu)-OH, N-β-(9-Fluorenylmethoxycarbonyl)-O-tert-butyl-L-β-homothreonine

Fmoc-L-β-homothreonine(OtBu)-OH (CAS 353245-99-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C24H29NO5 and a molecular weight of 411.491 g/mol. Key properties include a boiling point of 602.3±55.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 318.1±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 353245-99-5
Jingsj CID: J-1495350-5
Molecular Formula: C₂₄H₂₉NO₅
Molecular Weight: 411.491 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	602.3±55.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	318.1±31.5 °C
Exact Mass	411.204559
PSA	84.86000
LogP	5.30
Vapor Pressure	0.0±1.8 mmHg at 25°C
Refractive Index	1.564
Storage Conditions	2-8°C

Frequently Asked Questions

What is the CAS number of Fmoc-L-β-homothreonine(OtBu)-OH?

The CAS number of Fmoc-L-β-homothreonine(OtBu)-OH is 353245-99-5.

What are the molecular formula and molecular weight of Fmoc-L-β-homothreonine(OtBu)-OH?

Fmoc-L-β-homothreonine(OtBu)-OH has molecular formula C24H29NO5 and molecular weight 411.491 g/mol.

What are the upstream and downstream products of Fmoc-L-β-homothreonine(OtBu)-OH?

For Fmoc-L-β-homothreonine(OtBu)-OH, Upstream Products: Fmoc-Thr(tBu)-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-L-β-homothreonine(OtBu)-OH (CAS 353245-99-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1495350-5 (accessed 2026-11-09).

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