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L-Asparagine tert-butyl ester

Also known as: H-Asn-OtBu, L-Asn-OtBu, tert-Butyl L-asparaginate, tert-Butyl 2,4-diamino-4-oxobutanoate, tert-butyl (2S)-2,4-diamino-4-oxobutanoate, Asparagine tert-butyl ester, L-Asparagine, 1,1-dimethylethyl ester, asparagine t-butyl ester, asparagine tert-butyl ester, 2-Methyl-2-propanyl L-asparaginate

L-Asparagine tert-butyl ester (CAS 25456-86-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H16N2O3 and a molecular weight of 188.224 g/mol. Key properties include a boiling point of 340.2±32.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 168.0±21.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25456-86-4
Jingsj CID
J-1393836-8
Molecular Formula
C8H16N2O3
Molecular Weight
188.224 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point340.2±32.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point168.0±21.4 °C
Exact Mass188.116089
PSA95.41000
LogP-0.01
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.479

Customs & Trade Information

HS Code2924199090
Summary2924199090. 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 L-Asparagine tert-butyl ester?

The CAS number of L-Asparagine tert-butyl ester is 25456-86-4.

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

L-Asparagine tert-butyl ester has molecular formula C8H16N2O3 and molecular weight 188.224 g/mol.

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

For L-Asparagine tert-butyl ester, Upstream Products: Z-L-asparagine tert-butyl ester.

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-Asparagine tert-butyl ester (CAS 25456-86-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1393836-8 (accessed 2026-11-09).

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