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L-Leucine tert-butyl ester

Also known as: tert-Butyl L-leucinate, (S)-Leu-O-tBu, CC(C)C[C@@H](C(=O)OC(C)(C)C)N, H-L-Leu-OtBu, H2N-Leu-OtBu, L-Leucine 1,1-dimethylethyl ester, L-Leucine tert-butyl, Leucine tert-butyl ester, tert-butyl (2S)-2-amino-4-methylpentanoate

L-Leucine tert-butyl ester (CAS 21691-53-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H21NO2 and a molecular weight of 187.28300 g/mol. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
21691-53-2
Jingsj CID
J-1492731-2
Molecular Formula
C10H21NO2
Molecular Weight
187.28300 g/mol
Category
Organic Acids
Last updated
11/2/2026
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Physicochemical Properties

Exact Mass223.13400
PSA52.32000
LogP3.20380
Storage Conditions2-8°C

Frequently Asked Questions

What is the CAS number of L-Leucine tert-butyl ester?

The CAS number of L-Leucine tert-butyl ester is 21691-53-2.

What are the molecular formula and molecular weight of L-Leucine tert-butyl ester?

L-Leucine tert-butyl ester has molecular formula C10H21NO2 and molecular weight 187.28300 g/mol.

What are the upstream and downstream products of L-Leucine tert-butyl ester?

For L-Leucine tert-butyl ester, Upstream Products: tert-Butyl acetate, L-Leucine, N-[(Benzyloxy)carbonyl]-L-leucine; Downstream Products: Glycyl-L-alanyl-L-leucine, L-Leucine, N-[(Benzyloxy)carbonyl]-L-leucine.

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

Last updated:

How to cite: Jingsj. "L-Leucine tert-butyl ester (CAS 21691-53-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492731-2 (accessed 2026-11-09).

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