N-Carbobenzoxy-DL-norvaline

Also known as: Z-DL-Nva-OH, Cbz-DL-Norvaline, N-Carbobenzyloxy-DL-norvaline, N-[(Benzyloxy)carbonyl]norvaline, N-Benzyloxycarbonyl-DL-norvaline, Z-DL-Norvaline, N-Cbz-DL-norvaline, MFCD00020434, DL-CBZ-Norvaline, N-ALPHA-CARBOBENZOXY-DL-2-AMINO-PENTANOIC ACID

N-Carbobenzoxy-DL-norvaline (CAS 21691-43-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H17NO4 and a molecular weight of 251.278 g/mol. Key properties include a melting point of 88ºC, a boiling point of 439.4±38.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 219.6±26.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 21691-43-0
Jingsj CID: J-16957-3
Molecular Formula: C₁₃H₁₇NO₄
Molecular Weight: 251.278 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	88ºC
Boiling Point	439.4±38.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	219.6±26.8 °C
Exact Mass	251.115753
PSA	75.63000
LogP	2.78
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.533

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 Code	2924299090
Summary	2924299090. other cyclic amides (including cyclic 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 N-Carbobenzoxy-DL-norvaline?

The CAS number of N-Carbobenzoxy-DL-norvaline is 21691-43-0.

What are the molecular formula and molecular weight of N-Carbobenzoxy-DL-norvaline?

N-Carbobenzoxy-DL-norvaline has molecular formula C13H17NO4 and molecular weight 251.278 g/mol.

What are the upstream and downstream products of N-Carbobenzoxy-DL-norvaline?

For N-Carbobenzoxy-DL-norvaline, Upstream Products: DL-Norvaline; Downstream Products: N-[(Benzyloxy)carbonyl]-D-norvaline, Benzyloxycarbonyl-L-norvaline.

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. "N-Carbobenzoxy-DL-norvaline (CAS 21691-43-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16957-3 (accessed 2026-11-09).

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