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Boc-L-aspartic acid 4-tert-butyl ester

Also known as: Boc-Asp(OtBu)-OH, N-Boc-L-aspartic acid 4-tert-butyl ester, 4-tert-Butyl N-(tert-butoxycarbonyl)-L-aspartate, N-Alpha-t-Boc-L-aspartic acid beta-t-butyl ester, MFCD00076912, 4-tert-Butyl N-Boc-L-aspartate, N-tert-Butyloxycarbonyl-L-aspartic acid β-tert-butyl ester

Boc-L-aspartic acid 4-tert-butyl ester (CAS 1676-90-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H23NO6 and a molecular weight of 289.325 g/mol. Key properties include a melting point of 64-67 °C, a boiling point of 432.6±40.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 215.4±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1676-90-0
Jingsj CID
J-45637-1
Molecular Formula
C13H23NO6
Molecular Weight
289.325 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point64-67 °C
Boiling Point432.6±40.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point215.4±27.3 °C
Exact Mass289.152527
PSA101.93000
LogP2.72
Vapor Pressure0.0±2.2 mmHg at 25°C
Refractive Index1.470

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.

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 Boc-L-aspartic acid 4-tert-butyl ester?

The CAS number of Boc-L-aspartic acid 4-tert-butyl ester is 1676-90-0.

What are the molecular formula and molecular weight of Boc-L-aspartic acid 4-tert-butyl ester?

Boc-L-aspartic acid 4-tert-butyl ester has molecular formula C13H23NO6 and molecular weight 289.325 g/mol.

What are the upstream and downstream products of Boc-L-aspartic acid 4-tert-butyl ester?

For Boc-L-aspartic acid 4-tert-butyl ester, Upstream Products: Di-tert-butyl dicarbonate, L-Aspartic acid 4-tert-butyl ester, Boc-Asp(OtBu)-OH dicyclohexylamine salt; Downstream Products: Boc-L-aspartic acid 4-tert-butyl 1-(2,5-dioxo-1-pyrrolidinyl) ester, Boc-L-aspartinol 4-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. "Boc-L-aspartic acid 4-tert-butyl ester (CAS 1676-90-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45637-1 (accessed 2026-11-09).

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