O-Methyl-L-threonine

Also known as: L-O-Methylthreonine, (2S,3R)-2-Amino-3-methoxybutanoic acid, H-Thr(Me)-OH, H-THR(ME)-OH, L-Threonine methyl ether, L-Thr(me)

O-Methyl-L-threonine (CAS 4144-02-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H11NO3 and a molecular weight of 133.14600 g/mol. Key properties include a boiling point of 248ºC at760mmHg, a density of 1.143g/cm3 and a flash point of 103.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4144-02-9
Jingsj CID: J-1984799-5
Molecular Formula: C₅H₁₁NO₃
Molecular Weight: 133.14600 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	248ºC at760mmHg
Density	1.143g/cm3
Flash Point	103.8ºC
Exact Mass	133.07400
PSA	72.55000
LogP	0.13350
Refractive Index	1.461
Storage Conditions	2-8°C

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.

Frequently Asked Questions

What is the CAS number of O-Methyl-L-threonine?

The CAS number of O-Methyl-L-threonine is 4144-02-9.

What are the molecular formula and molecular weight of O-Methyl-L-threonine?

O-Methyl-L-threonine has molecular formula C5H11NO3 and molecular weight 133.14600 g/mol.

What are the upstream and downstream products of O-Methyl-L-threonine?

For O-Methyl-L-threonine, Downstream Products: Boc-O-methyl-L-threonine, L-Threonine.

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. "O-Methyl-L-threonine (CAS 4144-02-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1984799-5 (accessed 2026-11-09).

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