(2S)-4-tert-butoxy-2-(methylamino)-4-oxobutanoic acid

N-甲基-L-天冬氨酸β-叔丁基酯

Also known as: N-Me-Asp(OtBu)-OH, N-ME-ASP(OTBU)-OH, H-N-Me-Asp(OtBu)-OH, N-Methyl-L-aspartic acid beta-t-butyl ester, N-alpha-Methyl-L-aspartic acid beta-t-butyl ester, N-Methyl-L-aspartic acid 4-(1,1-dimethylethyl) ester, L-Aspartic acid, N-methyl-, 4-(1,1-dimethylethyl) ester, AmbotzHAA1099, H-L-MeAsp(tBu)-OH, H-MEASP(OTBU)-OH, N-ME-ASPARTIC ACID(OTBU), N-Me-L-Asp(OtBu)-OH

(2S)-4-tert-butoxy-2-(methylamino)-4-oxobutanoic acid (CAS 197632-85-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H17NO4 and a molecular weight of 203.23600 g/mol. It is also known as N-Me-Asp(OtBu)-OH, N-ME-ASP(OTBU)-OH and H-N-Me-Asp(OtBu)-OH. Key properties include a boiling point of 325.569ºC at 760 mmHg, a density of 1.136 g/cm3 and a flash point of 150.699ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
197632-85-2
Jingsj CID
J-45624-1
Molecular Formula
C9H17NO4
Chinese Name
N-甲基-L-天冬氨酸β-叔丁基酯
Molecular Weight
203.23600 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point325.569ºC at 760 mmHg
Density1.136 g/cm3
Flash Point150.699ºC

Frequently Asked Questions

What is the CAS number of (2S)-4-tert-butoxy-2-(methylamino)-4-oxobutanoic acid?

The CAS number of (2S)-4-tert-butoxy-2-(methylamino)-4-oxobutanoic acid is 197632-85-2.

What are the molecular formula and molecular weight of (2S)-4-tert-butoxy-2-(methylamino)-4-oxobutanoic acid?

(2S)-4-tert-butoxy-2-(methylamino)-4-oxobutanoic acid has molecular formula C9H17NO4 and molecular weight 203.23600 g/mol.

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

Last updated:

How to cite: Jingsj. "(2S)-4-tert-butoxy-2-(methylamino)-4-oxobutanoic acid (CAS 197632-85-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45624-1 (accessed 2026-10-25).

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